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L'importanza di scegliere il grasso giusto e che ben si adatta al macchinario per una lubrificazione corretta e ottimale

Esempi di 3 applicazioni critiche:
Grasso Mobil Polyrex™ EM per i motori elettrici
Grasso Mobil Centaur XHP™ per applicazioni negli ambienti saturi d’acqua
Grasso Mobil SHC Polyrex™ per condizioni operative ad alte temperature

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MCM ottobre 2015 workshop

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Veronafiere 27-28 ottobre 2015 Gli atti dei convegni e più di 6.000 contenuti su www.verticale.net Cogenerazione Termotecnica Industriale Pompe di Calore 27 ottobre Cogenerazione Termotecnica Industriale Pompe di Calore Alimentare Alimentare Petrolchimico Alimentare 28 ottobre Alimentare Petrolchimico Alimentare Alimentare Petrolchimico Visione e Tracciabilità 28 ottobre Luce Energia Domotica LED Luce Energia Domotica LED Mobil PolyrexTM EM Electric motors grease lubrication © 2009 Exxon Mobil Corporation. All rights reserved MCM Verona 28 October 2015
Paolo Burchianti LFE Esso Italiana
1 Agenda Electric motor
grease trends Major OEMs and bearing suppliers Grease requirements for electric motors ExxonMobil''s vision for Polyrex EM Grease
compatibility Performance
summary Critical performance
characteristics 2 Electric Motor Lubricating Grease Trends Increasing power density ' Motors are becoming smaller for given power output ' Speeds and operating temperatures are increasing Greases required to last
throughout motor''s life : Fill
for Life
' Requires balance of bleed characteristics, oxidation
stability and structural stability Grease is considered a
fundamental component
of premium electric motors
' Grease requirements are specified by OEM as integral to
new designs Increasing need for
quieter greases for noise-
sensitive applications
' Automotive under-the-hood application ' Consumer goods 3 Electric Motors - Major OEMs 4 Electric Motors '' Major Bearing Suppliers 5 Electric Motor Design 6 Grease Requirements For Electric Motors Good channeling characteristics NLGI Grade 2 or 3 ' 3 grades used where dn>250,000 (dn=bore(mm) x rpm) 500-650 SUS @100°F (c.ca 38 °C) base-oil viscosity
(~100cSt @ 40°C)
High dropping point ' Measured by ASTM D2265 ' 450°F (232°C) minimum Low oil bleed characteristics ' Measured by ASTM D1742, ASTM D6184 or IP121 7 ...More Requirements For Electric Motor Greases Excellent resistance to high temperature oxidation ' Usually measured by ASTM D3336 spindle life
' 500 hour minimum at top operating temp (300-350°F)
(149-177°C) Good low temperature torque characteristics ' Usually measured by ASTM D 1478
' Typically 10,000 g-cm max starting torque at -20°F (-29°C) Good anti-wear characteristics but generally non-EP 8 ExxonMobil''s Vision for Mobil Polyrex EM To offer a ''state-of-the-art' lubricating grease for use
in electric motor bearings that:
Sets new standards for long-life grease
performance Allows bearing manufacturers to supply
grease-lubricated bearings capable of
offering longer life, low-maintenance
service, on an unprecedented scale in the
marketplace Offers low-noise performance desired for
noise-sensitive applications 9 Mobil Polyrex EM Delivers STEP-OUT Performance Excellent high-temperature long-life lubrication Good pumpability Good low temperature capabilities Outstanding shear stability (mechanical stability) Excellent corrosion resistance Excellent oil bleed characteristics Increased compatibility with most
conventional lithium greases 10 The Performance Breakthrough of Mobil Polyrex EM Extended life without compromise
in other grease properties
11 Test conditions ' 6204 bearing runs @ 10,000 rpm
' Light loading: 5 lb axial, 15 lb radial
' 350°F (177 °C) bearing temperature
' Failure detected by an increase in bearing starting torque or a 27+ °F temperature spike ' Duty cycle: 20 hours on, 4 hours off ASTM D3336 Grease Life Test Mobil Polyrex EM achieves : >750 hrs. @ 350°F (177°C) 12 FAG FE9 Grease Life (Variation A) 130 135 140 145 150 155 160 165 Mobil Polyrex EM Competitor C Conventional Polyurea Conventional Li-Complex T e mperature (°C) to obtain 100 hr minimum life (L50) 13 Shear Stability Based on 100,000 Penetration 0 20 40 60 80 100 120 Mobil Polyrex EM Competitor C Conventional Polyurea Conventional Li-Complex 100KX '' 60X Penetration, Mm/10 14 ' Spinning ball rotates against 3 stationary balls
' Load on spinning ball = 40 kg
' Test temperature = 167°F
' Speed of rotating ball = 1200 rpm
' Test duration = 1 hour
' Diameter of circular wear scar on stationary balls is measured in mm ' Industry standard = <0.5-0.6 mm scar Anti-Wear Protection Mobil Polyrex EM achieves : 0.4 mm scar Wear protection is measured in the 4-ball wear test (ASTM D 2266) Test conditions 15 Water washout test (ASTM D1264) ' Bearing tested in a shielded, but unsealed housing ' Test temperature = 79°C
' Typical lithium complex grease achieves 3-5% washout Mobil Polyrex EM Exhibits Excellent Water Resistance Mobil Polyrex EM achieves 1.9% 16 Bearings run in duplicates
' Rating scale is from 0 to 5
' 0 = no corrosion
' 5 = severe corrosion Rating 0 Rating 5 EMCOR Rust Test Mobil Polyrex EM achieves 1, 0 rating 17 Controlled oil bleed is key to achieving long lubrication life Mobil Polyrex EM Controls Oil Bleed Mobil Polyrex EM achieves 0.5% ASTM D1742 oil separation test Predicts the amount of static oil
separation at 25 °C
' Measures the amount of oil bleed through a wire mesh with 0.25 psi
pressure on the grease ' Typical Lithium Complex greases achieve <3% oil bleed 18 Controlled oil bleed is key to achieving long lubrication life ' Measures oil bleed through a wire mesh at 100 °C (30 hours) ' Low bleed is critical for long-life performance at high temps Mobil Polyrex EM Controls Oil Bleed Mobil Polyrex EM achieves <0.1% bleed ASTM D6184 high temperature oil bleed test 19 Mobil Polyrex EM Controls Oil Bleed IP 121 oil bleed test ' Similar equipment set-up as ASTM D1742
' IP 121 tests run on Mobil Polyrex EM and Competitor C at 40, 70, 120, and 150°C ' Oil bleed measured at times ranging from 42 hours to 1 week. See graph for details 20 IP 121 Oil Bleed Results 0 5 10 15 20 25 30 35 0 20 40 60 80 100 120 140 160 180 Time (hours) Oil Separation (%) Polyrex EM @ 120°C
Competitor C @ 120°C
Polyrex EM @ 150°C
Competitor C @ 150°C
Polyrex EM @ 70°C
Competitor C @ 70°C
IP 121 oil separation @ 70°C, 120°C and 150°C 150°C 70°C 70°C 150°C 120°C 120°C 21 Mobil Polyrex EM Mobil Polyrex EM = Excellent Overall Performance Bearing Life
Mobil Polyrex EM exhibits 3
to 7 times longer bearing life
than conventional electric
motor greases Noise Performance Mobil Polyrex EM uses a
controlled proprietary
manufacturing technique to
deliver consistent low-noise
performance Compatibility Mobil Polyrex EM exhibits
enhanced compatibility with Li-
complex and other Polyurea
greases Oil Bleed Mobil Polyrex EM exhibits
controlled oil separation
even at high temperatures Shear Stability Mobil Polyrex EM exhibits
significantly improved shear stability
over conventional polyurea greases 22 Grease Compatibility All Mobil electric motor greases are compatible or moderately compatible with each other Grease Compatibility Guide Mobil Polyrex EM Mobil Polyrex EM 103 Unirex N2 Unirex N3 Mobilith SHC 100 Mobil temp SHC 100 Mobil
Polyrex
EM Comp Comp (FE9) Comp (FE9) Comp M-Comp Mobil
Polyrex
EM 103 Comp r/a r/a r/a M-Comp Unirex N2 Comp (FE9) r/a Comp M-Comp r/a Unirex N3 Comp (FE9) r/a Comp M-Comp Comp Mobilith
SHC 100 Comp r/a M-Comp M-Comp Comp Mobiltemp
SHC 100 M_Comp M-Comp r/a Comp Comp Compatible Moderately Compatible Incompatible Thanks Questions ' Mobil Centaur XHPTM
Grease for water saturated application
Paolo Burchianti MCM Verona Fair 28 October 2015 Release Classification Format: 2 © 2011 Exxon Mobil Corporation. All rights reserved June 22, 2009 - 1 - Calcium Sulfonate Thickener Inherent Properties Rust & Corrosion Protection EP/AW Performance Mechanical Stability Wet Mechanical Stability Water Resistance June 22, 2009 - 2 - Calcium Sulfonate Complex Thickener Chemistry Calcium Sulfonate Grease thickeners are a two component system ' Component A is a stabilized colloidal suspension of Calcium Carbonate in oil providing thickening properties '' Imparts excellent rust and corrosion protection by blocking water access to metal surfaces '' Serves as passive EP for excellent load carrying performance by forming laminar platelets, allowing heavy loads to be carried ' Component B is a conventional Calcium Complex thickener '' Provides structural stability Proper manufacturing is critical in the formation of planar calcite crystals, that provide the lower friction product attributes 2 June 22, 2009 - 3 - Calcium Sulfonate Complex Thickener Chemistry Thickener Component A ' Colloidal dispersion of Calcium Carbonate particles stabilized by Sulfonate in the oil phase '' Provides inherent passive EP/AW Properties
'' Provides inherent rust & corrosion protection ' Prepared by converting amorphous Calcium Carbonate to Calcite crystals through gelation techniques. 3 Calcium Sulfonate Detergent CaCO 3 Calcium Carbonate Polar Head [-SO 3] Non-Polar Hydrocarbon Tail [R-] Calcite Crystal Dispersion June 22, 2009 - 4 - Calcium Sulfonate Complex Thickener Chemistry Thickener Component B ' Conventional Calcium Complex soap thickener '' Provides structural stability Calcium Hydroxide + 12-HSA + Complexing Agent Calcium Complex Soap 12-HSA: 12-Hydroxy Stearic Acid Calcium Hydroxide: Ca(OH) 2 Slaked Lime Milk of Lime Hydrated Lime Complexing Agent Low molecular weight Organic acid e. g. Acetic Acid June 22, 2009 - 5 - Mobil Calcium Sulfonate Grease Technology Inherent Properties ' Calcium Sulfonate Complex thickener has excellent wet & dry shear stability No significant change in consistency even when highly contaminated with water ' The thickener acts as a rust inhibitor Demonstrated protection against rust and corrosion in laboratory testing as well as application ' Calcite platelets formed during thickener production Provide inherent EP protection ' Thickener structure provides excellent oil control helping to minimize bleed Helps to extend re-lubrication intervals and reduce leakage 5 June 22, 2009 - 6 - Mobil Calcium Sulfonate Grease Technology Inherent Properties '' Corrosion Protection ' Calcium Sulfonates are commonly used as rust inhibitors in formulated lubricants, e. g. Diesel and gasoline engine oils as well as metal working
fluids
' Intrinsic property of the Calcium Sulfonate thickener system inhibits the development of rust and corrosion ' Additional additives are not required for corrosion protection ' Centaur exhibits good corrosion protection performance '' Protects against water
'' Protects against salt water (synthetic sea water) June 22, 2009 - 7 - Inherent Properties '' EP/AW Performance Thickener production results in the formation of Calcite crystals ' Performs in a similar manner as MoS2
' Conventional sulfur-phosphorus additives are not needed Calcite layers formed on metal surface Sacrificial shear plane provides EP Calcite plane ' resists water intrusion, and
' maintains ability to provide EP protection Mobil Calcium Sulfonate Grease Technology June 22, 2009 - 8 - Wet & Dry Mechanical Stability ' Mobil Centaur XHP thickener does not soften excessively when worked '' Maintains consistency in the Roll Stability Test (ASTM D1831) ' Mobil Centaur XHP greases absorb water while maintaining consistency '' Mobil Centaur XHP thickener demonstrates excellent wet structural
stability in the Wet Roll Stability Test
(ASTM D7342) '' Maintains consistency even in water saturated environments Resistance to Water ' High thickener content provides greater adhesive quality ' Mobil Centaur XHP greases are enhanced with special polymers to
improve water resistance
'' Strong adhesion to metal surface ' Water Spray-Off Performance (ASTM D4049) '' Strong cohesive properties ' Water Wash-Off Performance (ASTM D1264) Mobil Centaur XHP Calcium Sulfonate Grease Technology Mobil Centaur
Calcium Sulfonate Grease Technology
Mobil Centaur XHP Typical Properties June 22, 2009 - 10 - Product Overview NLGI Class Base Oil Type Base Oil ISO VG DIN 51825 Code Mobil Centaur XHP 221 1-2 Mineral 220 KP1-2G-20 Mobil Centaur XHP 461 1 Mineral 460 KPF1K-20 Mobil Centaur XHP 462 2 Mineral 460 - Mobil Centaur Moly 1 1 Mineral 320 - Mobil Centaur Moly 2 2 Mineral 320 - Mobil Centaur XHP 461 Mine 1 Mineral 460 - Mobil Centaur XHP 462 Mine 2 Mineral 460 - Mobil Centaur Calcium Sulfonate Greases June 22, 2009 - 11 - Mobil Centaur Calcium Sulfonate Greases Mobil Centaur XHP 460 Series Mobil Centaur XHP 462 and Mobil Centaur XHP 461 are polymer enhanced
Calcium Sulfonate greases developed for the most severe service
requirements in a wet environment
Typical Properties Test Method Mobil Centaur XHP 461 462 DIN 51825 Classification - KPF1K-20 - NLGI Consistency Class - 1 2 Oil Viscosity 40 ºC, mm²/s ASTM D445 460 460 Dropping Point, ºC ASTM D2265 275 275 Worked Penetration, mm/10 ASTM D217 315 280 Water Wash-Out 79 ºC, weight % ASTM D1264 1.0 0.5 Water Spray-Off, weight % ASTM D4049 25 20 Four Ball Wear Scar, mm ASTM D2266 0.6 0.6 Four Ball Weld Load, kg ASTM D2596 400 400 Data are typical of normal production and do not constitute a product specification June 22, 2009 - 12 - Mobil Centaur Calcium Sulfonate Greases Mobil Centaur XHP 221 Mobil Centaur XHP 221 is a polymer enhanced Calcium Sulfonate grease
formulated for rolling elements in industrial equipment operating at high
temperatures or under wet, heavily loaded conditions
Typical Properties Test Method Mobil Centaur XHP 221 DIN 51825 Classification - KP1-2G-20 NLGI Consistency Class - 1-2 Dropping Point, ºC ASTM D2265 318 Oil Viscosity 40 ºC, mm²/s ASTM D445 220 Worked Penetration, mm/10 ASTM D217 300 Prolonged Worked Penetration, mm/10 ASTM D217 10 Water Wash-Out 79 ºC, weight % ASTM D1264 1.0 Four Ball Weld Load, kg ASTM D2596 400 EMCOR Rust Prevention (distilled water), rating ASTM D6138 0-1 Copper Corrosion, rating ASTM D4048 1B Oil Separation, weight % ASTM D6148 2 Wheel Bearing Life 160 ºC, hours ASTM D3527 120 Data are typical of normal production and do not constitute a product specification June 22, 2009 - 13 - Mobil Centaur Calcium Sulfonate Greases Mobil Centaur Moly Series Mobil Centaur Moly 1 and Mobil Centaur Moly 2 are Calcium Sulfonate greases
developed for severe service requirements realized in Off-Highway service
Typical Properties Test Method Mobil Centaur Moly 1 2 NLGI Consistency Class - 1 2 Dropping Point, ºC ASTM D2265 288 280 Oil Viscosity 40 ºC, mm²/s ASTM D445 320 320 Worked Penetration, mm/10 ASTM D217 325 Min 265 Water Wash-Out 79 ºC, weight % ASTM D1264 1.0 1.0 Water Spray-Off, weight % ASTM D4049 25 20 Four Ball Wear Scar, mm ASTM D2266 0.5 0.4 Four Ball Weld Load, kg ASTM D2596 500 500 Data are typical of normal production and do not constitute a product specification June 22, 2009 - 14 - Mobil Centaur Calcium Sulfonate Greases Strengths ' Ability to lubricate in a water saturated environment
' Inherent corrosion protection
' Long lasting EP properties
' Excellent shear stability '' even when contaminated with water
' Excellent oil release control in high temperatures Limitations ' Oxidation at high temperatures
' Can lose some ability to lubricate at temperatures above 130 ºC (266 ºF) ' More difficult to pump at low temperatures due to high thickener
content
Mobil Centaur
Calcium Sulfonate Grease Technology
Competitive Survey June 22, 2009 - 16 - All Calcium Sulfonate Greases are not the same.... ExxonMobil performed a competitive survey of greases typically used in sever
steel mill applications
' Included in the survey was Mobil Centaur XHP and five competitive products ' Greases were evaluated in a battery of 22 tests focused on the application performance requirements critical to steel mill applications ' Performance ratings developed based upon the individual test results, and the documented precision of the tests methods employed This report concluded that all Calcium Sulfonate greases are not the same... June 22, 2009 - 17 - Mobil Centaur XHP Calcium Sulfonate Grease
Overall Performance
Mobil Centaur XHP provides balanced performance helping to extend equipment life, increase productivity, and decrease maintenance costs 9.5 7.8 7.7 8.1 7.3 7.0 Centaur XHP 461 Competitor A Competitor B Competitor C Competitor D Competitor E Overall Performance Rating June 22, 2009 - 18 - Wet Structural Stability prevents excessive grease softening and leakage when
exposed to water helping the grease
' to stay in place,
' maintain equipment protection, and ' potentially decrease grease consumption even in water saturated
environments
9.5 6.5 5.0 8.0 5.3 5.5 Centaur XHP 461 Competitor A Competitor B Competitor C Competitor D Competitor E Wet Structural Stability Rating Source: EMRE, 2010 Industrial Grease Steel Mill Competitive Survey, RL.6PI.2010
Testing: Wet Shell Roll ASTM D1831mod + Bethlehem Steel Combo (BSC) Test LT-46
Mobil Centaur XHP Calcium Sulfonate Grease
Wet Structural Stability
June 22, 2009 - 19 - Water Resistance prevents grease from being washed out of equipment
helping the grease to
' stay in place,
' maintain equipment protection, and ' potentially decrease grease consumption even when subjected to
water spray
10.0 7.5 8.0 7.0 6.0 4.5 Centaur XHP 461 Competitor A Competitor B Competitor C Competitor D Competitor E Water Resistance Rating Source: EMRE, 2010 Industrial Grease Steel Mill Competitive Survey, RL.6PI.2010
Testing: Resistance to Water Spray ASTM D4049 + Water Resistance DIN 51807-1
Mobil Centaur XHP Calcium Sulfonate Grease
Water Resistance
June 22, 2009 - 20 - Oil Control over a range of temperatures helps ensure proper lubrication and
equipment protection through
' reduced wear, leading to
' increased equipment availability, and ' potentially reduced maintenance costs 10.0 9.5 9.5 10.0 9.5 9.5 Centaur XHP 461 Competitor A Competitor B Competitor C Competitor D Competitor E Oil Release Control Rating Source: EMRE, 2010 Industrial Grease Steel Mill Competitive Survey, RL.6PI.2010
Testing: Gelman Bleed AM-S1407 + Oil Separation IP 121
Mobil Centaur XHP Calcium Sulfonate Grease
Oil Release Control
June 22, 2009 - 21 - Rust and Corrosion Protection helps protect equipment and extend equipment
life in wet environments, potentially decreasing
' equipment downtime and
' maintenance costs, by
' preventing 10.0 9.5 10.0 10.0 10.0 10.0 Centaur XHP 461 Competitor A Competitor B Competitor C Competitor D Competitor E Rust & Corrosion Protection Rating Source: EMRE, 2010 Industrial Grease Steel Mill Competitive Survey, RL.6PI.2010
Testing: ASTM Rust ASTM D1743 + EMCOR Dynamic Rust Test ASTM D6138
Mobil Centaur XHP Calcium Sulfonate Grease
Rsut & Corrosion Protection
June 22, 2009 - 22 - Low Temperature Performance helps ensure grease can be applied as needed
through central distribution systems to critical components potentially
' decreasing equipment downtime and ' maintenance costs, but only if balanced with
other critical performance
features
7.5 4.0 5.5 3.5 7.0 8.5 Centaur XHP 461 Competitor A Competitor B Competitor C Competitor D Competitor E Low Temperature Performance Rating Source: EMRE, 2010 Industrial Grease Steel Mill Competitive Survey, RL.6PI.2010
Testing: USS Low Temperature Mobility @ 20
°F M1390 + Lincoln Ventmeter @ 10°F K95400 Mobil Centaur XHP Calcium Sulfonate Grease
Low Temperature Performance
June 22, 2009 - 23 - Product Strengths (Rating min 9) Weaknesses (Rating max 5) Mobil Centaur XHP 461 ' Water Resistance
' Rust and Corrosion
' Oil Control
' Structural Stability
' Wet Structural Stability None Competitor A ' Rust and Corrosion
' Oil Control
' Structural Stability ' Low Temperature Performance Competitor B ' Rust and Corrosion
' Oil Control
' Structural Stability None Competitor C ' Rust and Corrosion
' Oil Control
' Structural Stability
' Wet Structural Stability ' Low Temperature Performance Competitor D ' Rust and Corrosion
' High Temperature Performance
' Oil Control
' Structural Stability ' Wet Structural Stability Competitor E ' Rust and Corrosion
' Low Temperature Performance
' Oil Control
' Structural Stability ' Water Resistance Source: EMRE, 2010 Industrial Grease Steel Mill Competitive Survey, RL.6PI.2010 Mobil Centaur XHP Calcium Sulfonate Grease
Competitive Overview
June 22, 2009 - 24 - Product Strengths (Rating min 9) Weaknesses (Rating max 5) Mobil Centaur XHP 461 MOBIL BALANCED FORMULATION Competitor A ' Rust and Corrosion
' Oil Control
' Structural Stability ' Low Temperature Performance Competitor B ' Rust and Corrosion
' Oil Control
' Structural Stability None Competitor C ' Rust and Corrosion
' Oil Control
' Structural Stability
' Wet Structural Stability ' Low Temperature Performance Competitor D ' Rust and Corrosion
' High Temperature Performance
' Oil Control
' Structural Stability ' Wet Structural Stability Competitor E ' Rust and Corrosion
' Low Temperature Performance
' Oil Control
' Structural Stability ' Water Resistance Source: EMRE, 2010 Industrial Grease Steel Mill Competitive Survey, RL.6PI.2010 Mobil Centaur XHP Calcium Sulfonate Grease
Competitive Overview
Mobil Centaur
Calcium Sulfonate Grease Technology
Target Markets & Applications June 22, 2009 - 26 - Mobil Centaur XHP Calcium Sulfonate Grease Technology A problem solver for wet applications June 22, 2009 - 27 - Target Markets & Applications Steel Industry ' Water
' Heat Off-Highway & Mining ' High contamination
' Sliding friction
' Water June 22, 2009 - 28 - Target Market Steel Industry Mobil Centaur XHP technology is ideally suited for Steel Mill Applications ' High temperatures, wet environments
' Demonstrated performance in hot strip mill bearings
' Demonstrated performance in castors June 22, 2009 - 29 - ' Low speed
' Heavily loaded
' Water contamination
' Sliding friction
' Dust and dirt Target Market Off-Highway & Mining June 22, 2009 - 30 - Target Market Off Highway & Mining '' Bushings Challenges ' Heavy loads and very low speeds in bushing applications subjected
to oscillating and / or rolling motion
' High level of contamination from dust and dirt ' Water contamination '' Must stay in place and maintain consistency '' Must protect steel, copper alloys and seal materials ' Infrequent re-greasing intervals ' Heavily loaded bushings need a grease that can provide friction reduction and EP properties ' Needs to stay in the bushing, protect the metal surface from water and dirt contamination MCM Verona 28 October 2015 Paolo Burchianti LFE Esso Italiana © 2009 Exxon Mobil Corporation. All rights reserved Release Category: EXTERNAL 2 Mobil SHC PolyrexTM Series Grease for high temperature operating conditions 1 Maximum Performance for Industrial Productivity Mobil Polyrex Thickener Technology + Synthetic Oils + Performance Additive Package + Food Registrations = Industrial Strength Performance & Productivity 2 Food Processing Industry
' NSF H-1 Registration
' Kosher/Parve Certification
' Gluten, nut and wheat free Industrial Strength Performance
' Polyrex synthesized thickener
' Synthetic oil technology, ISO 460 & 220
' Polymer enhanced
' Performance additive package
' Recommended operating temperature up to 170 'C Mobil SHC Polyrex Mobil SHC Polyrex 462 Mobil SHC Polyrex 222 Mobil SHC Polyrex 005 Heavy Duty
' Highest temperature range
' Low speed, high load applications ' ISO 460 synthetic oil
' Water and Corrosion Resistant Heavy Duty
' Most general bearing applications ' ISO 220 synthetic oil
' Water and Corrosion Resistant ' Wide temperature range Central Systems
' Centralized systems
' Gear box lubrication
' ISO 220 synthetic oil
' Low temperature mobility
' Controlled oil bleed
' Water and Corrosion Resistant 3 Method Units Mobil SHC Polyrex 462 Mobil SHC Polyrex 222 Mobil SHC Polyrex 005 DIN 51825 -------- KPF2P-20 KPF2P-30 -------- DIN 51826 -------- -------- -------- GPF00K-30 Fundamental Properties Typical Inspections FE9 DIN 51821 L50 Hours 375 350 NA Penetration, 60 Stroke D 217 mm/10 271 275 415 Viscosity Index Calculated % 139 148 148 Base Oil Viscosity @ 40
°C Calculated cSt 460 220 220 Base Oil Viscosity @ 100
°C Calculated cSt 40 30 30 Dropping Point D 2265 °C 268 260 ---- Mobil SHC Polyrex Properties 4 FAG FE9 Test Parameters: ' 5-Angular Contact Ball Bearings ' 6000 rpm, 1500 N Axial Load, Shielded ' L 50 statistic is calculated from the 5 bearings ' L 50 represents probability average of 50% of bearings meets or exceeds 100 hours of run time before failure ' Run increasing temperatures to L 50 > 100 hours ' Report as Temperature @ L 50 hours. The keys to high temperature lubrication: ' Slow release of oil to the load zone at high temperatures ' Oxidation stability High temperature FE9 test rig 5 -50 0 50 100 150 200 Mobilgrease XHP 222 Mobilith SHC 220 Mobil SHC Polyrex 222 Mobil SHC Polyrex 462 Recommended Operating Temperature Range (122) (212) (302) (392) Temperature °C (°F) Mobil SHC
Polyrex Offers
a new option
for high
temperature
lubrication
170 170 (-46) (32) 150 140 -20 -30 -40 -20 Low temperature limit based on DIN Flow Pressure Test, High Temperature limit recommendation based on FE9. Actual high temperature use must be verified by EHL calculations. Options for higher temperatures 6 High Temperature Performance: FE9 @ 160 0C 7 13 22 34 10 378 0 50 100 150 200 250 300 350 400 450 A B C D E Mobil SHC Polyrex 462 L 50 ( H o u rs) Flying away from the competition in high temperature lubrication performance Competitor A - E A = Aluminum Complex, NSF H-1 B = Calcium Sulfonate, NSF H-1 C = Calcium Sulfonate, NSF H-1 D = Clay, NSF H-1 E = Aluminum Complex, NSF H-1 Mobil SHC Polyrex 462 = Advanced Polyurea Thickener, NSF H-1 Standard FE9 Testing
demonstrates Mobil SHC
Polyrex exceeds
competitive products in
high temperature
performance:
- Longer bearing life - Reduced downtime For Increased Productivity FE9 repeatability bands for Mobil SHC Polyrex 462 Options for higher temperatures 7 Competitor Mobil SHC Polyrex 462 Mobil SHC Polyrex Synthetic Technology:
In FE9 Bearing Rig Mobil SHC Polyrex
shows 25% lower operating temperature
helping to extend relubrication intervals
Aluminum Complex ''Reduce the Heat' with Mobil SHC Polyrex 8 Mobil SHC Polyrex 005 Offers Superior Dispensability even at low temperatures
- Less distribution system maintenance
- Reliable grease delivery
Dispensing Rate (-18 'C) 0 5 10 15 20 25 30 35 40 45 Mobilgrease XHP 005 Mobil SHC Polyrex 462 Mobil SHC Polyrex 222 Mobil SHC Polyrex 005 G ram s/ M in u te * * Flow Properties of Grease at Low Temperature, USS DM-43. More dispensing options available
for cold process operations
Dispensing capability 9 Proven Performance - Food Mobil SHC Polyrex 462 provides $23,000 annual cost savings in a
sugar beet processing plant
Benefit
NSF H-1 registered Mobil SHC Polyrex 462 grease enables a sugar beet
processing plant to save annually $23,000 in spare part and maintenance costs. Situation
The product used to lubricate the critical components of a steam dryer at
continuously high temperatures of 150°C (302°F) in a humid environment was
leading to excessive wear on sluice jaws and lubricating rings due to uncontrolled
oil bleeding. Grease stiffening was causing a malfunction of magnetic valves of the
centralized grease system. Impact
Mobil SHC Polyrex 462 was used during an intense sugar campaign period.
Inspection of the critical components showed no evidence of wear. The grease
maintained its consistency resulting in flawless operation of the centralized grease
system. Mobil SHC Polyrex 462 was the only NSF-H1 registered grease which
performed under these severe conditions. 10 ' Supercalender profile roll stack running at 360 rpm
& 110 'C (230 'F).
' Competitive grease (ISO 1500 synthetic) not providing adequate lubrication. Oil separation observed during service. ' Bearing life experienced < 1 year.
' Mobil SHC Polyrex 462 tested, bearing inspection performed at 1 year. ' Grease inspection showed no detectable oxidation, bearings showed no signs of wear. Proven Performance - Paper 11 ' Paper machine dryer felt roll
bearings only accessible for
relubrication every six weeks.
' Temperatures > 93°C.
' Testing of Mobil SHC Polyrex 462 vs. Mobilith SHC PM &
Shell Stamina HDS.
' Mobil SHC Polyrex 462 maintained consistency,
less hardening over six week
cycle vs. the other products.
Proven Performance - Paper 12 ' Film extrusion MDO section steam
heated rolls.
' Bearing operating temperature 135 'C (275 'F). ' Speeds 45 '' 240 rpm define mixed boundary/EHL conditions at these
temperatures.
' Mobil SHC Polyrex 462 follow-up inspections showed no oil separation, no
hardening and no deposits
' Mobil SHC Polyrex 462 gave equivalent performance to a specialty niche high
temperature product.
Proven Performance - Plastic 13 ' Exhaust fan shaft bearings, 2500 rpm & 100°C.
' Historical failure rate was every 4-6 months.
' Previous lithium complex grease showed hardening and oxidation after failure. ' Mobil SHC Polyrex 462 extended bearing life to 12 months, reaching a planned shutdown and maintenance. Proven Performance - Cement 14 ' Drive & head bearings experience high level of clinker dust contamination. ' Dust ingress caused higher bearing operating temperatures, increased vibration, leading
to a 6 '' 8 month bearing life.
' Mobilith SHC 460 did not improve bearing life, becoming stiff and unable to lubricate. ' Mobil SHC Polyrex 462 tested for 10 months before inspection. ' Operating temperatures and vibration signatures were normal. Grease consistency,
although contaminated, showed no hardening.
' Bearing condition looked good. Proven Performance - Cement 15 Field Application Summary ' Mobil SHC Polyrex: high temperature lubrication recommended up to 170 'C ' Mobil SHC Polyrex 462 was successfully field tested in the following applications: '' Supercalender 110 'C '' Dryer felt roll bearings >93°C '' Exhaust blower 100 'C (210 'F) '' Clinker elevator Dust contamination '' Film extrusion, steam heated rolls 135 'C '' Fluidized bed steam heated dryer 150 'C ' These field tests have been documented and are available for use 16 Distributor Flash Deck Summary ' Mobil SHC Polyrex 462, 222, 005: '' Industrial strength lubrication performance
'' Food safe lubrication of food processing equipment ' High temperature lubrication recommended up to 170 'C ' Low temperature dispensing recommended down to -20 to -30 'C ' Proven performance in general industry and food processing applications 17 Mobil SHC Polyrex ' Recommended operating temps up to 170 'C
' Kiln/oven exhaust fans
' Plastic extruder/calendar bearings
' Paper machine felt rolls, under hood applications ' Paint/laminating ovens
' Mobil SHC Polyrex 005 in centralized systems ' OSB/MDF press grease ' All bearings above and below processing line
' Dryers
' Ovens
' Steam heated rolls
' Extruders
' Steam/oil heated mixing equipment
' Mobil SHC Polyrex 005 in centralized systems ' Mobil SHC Polyrex 005 '' leaky gear box Industrial Strength Performance
' Advanced polyurea thickener
' Synthetic oil technology, ISO 460 & 220
' Polymer enhanced
' Performance additive package
' Recommended operating temperature up to 170 'C Food Processing Industry
' NSF H-1 Registration
' Kosher/Parve Certification
' Gluten, nut and wheat free


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