Polyurea Grease Prolongs Life of Electric Motor Bearings

Formulated with polyurea thickener and designed specifically for use in electric motor bearings, Monolec® Extend EM Grease offers superior mechanical stability for long service life. It features low bleed characteristics, excellent pumpability and great oxidation resistance. It is especially effective when severe industrial operating conditions such as extreme temperatures and high speeds are present.

Monolec® is a registered trademark of Lubrication Engineers, Inc. Perma® is a registered trademark of perma-tec GmbH u. Co. KG.

Lubrication Engineers operates under an ISO 9001 Certified Quality System.
Unit of Measure

Benefits and Recommendations

Available Container Size

N/A Case 40 Tubes

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GHS Statement

N/A For professional and commercial use only

Beneficial Qualities

N/A Enhances Performance & Reliability
  • Helps bearings run cooler and last longer
  • Increases efficiency of motor by decreasing drag
  • Exhibits superior mechanical stability
  • Provides long service life without any change in consistency
  • Experiences low oil separation; will not bleed into motor's windings
  • Possesses extreme pressure characteristics
Resists Heat & Other Extreme Conditions
  • Exhibits high dropping point
  • Is extremely resistant to oxidation
  • Maintains excellent pumpability at low temperatures
  • Experiences very low evaporation rate
Withstands Water
  • Provides superior water spray-off resistance
  • Maintains mechanical stability in presence of water
  • Protects against rust and corrosion


  • Operating Temperature Range: -23ºC (-10ºF) to 204ºC (400ºF)
  • The best practice is to avoid mixing different lubricants.
  • When converting from another lubricant to Monolec Extend EM Grease (1282), it is always best practice to disassemble the equipment and remove all of the old lubricant prior to introducing the new grease.
  • If it is not possible to disassemble the equipment, purge the old lubricant with Monolec 1282 and shorten the relubrication interval. Purge again with Monolec 1282 and closely monitor.

Proprietary Additive

N/A LE's proprietary additive are used exclusively in LE lubricants. Monolec Extend EM Grease contains Monolec.

Monolec® wear-reducing additive creates a single molecular lubricating film on metal surfaces, vastly increasing oil film strength without affecting clearances. An invaluable component in LE's engine oils, industrial oils and many of its other lubricants, Monolec allows opposing surfaces to slide by one another, greatly reducing friction, heat and wear.

Typical Applications

  • Electric motor bearings
  • Automotive bearings in generators, alternators and starters
    • Not for wheel bearings and automotive chassis applications

Asset Reliability Solutions

N/A Reliability Solution Products

Physical Characteristics - Typical


N/A Smooth w/ Slight String

Thickener Type

N/A Polyurea


N/A Purple

NLGI Grade

N/A 2

Performance Test Results

Worked 60 Penetration ASTM D217

N/A 275

Worked 10K Penetration ASTM D217

N/A 277

Worked 100K Penetration ASTM D217

N/A 299

Dropping Point ºC(ºF), ASTM D2265

N/A 271 (520)

Viscosity @ 100°C, cSt, ASTM D445

N/A 14.00

Viscosity @ 40°C, cSt, ASTM D445

N/A 145.0

Oxidation drop in psi @ 100 hrs, ASTM D942

N/A 3

Corrosion Prevention DI H2O, ASTM D1743

N/A Pass

Oil Separation 30 hrs @ 100ºC, % bleed, ASTM D6184

N/A <2.0

Timken OK Load lbs, ASTM D2509

N/A 50

Four-Ball EP Weld Point kgf, ASTM D2596

N/A 620 kgf

Water Spray-off % Loss, ASTM D4049

N/A 10.0

Copper Corrosion 24 hrs @ 100ºC, ASTM D4048

N/A 1b

Evaporation 22 hrs @ 100ºC, % loss, ASTM D972

N/A < 1.0

Grease Mobility 100 psi @ -18ºC (0ºF), USX Mobility procedure

N/A 0.039 gm/sec