B1018E Low Torque Long life Deep Groove Ball Bearings for Electrical Motors

Product catalog summary

Overview: The document discusses the development of low-torque, long-life deep groove ball bearings specifically designed for electric motors. The focus is on an optimized grease composition that significantly reduces rotational torque and extends the service life of the bearings.

Key Specifications:

Grease Composition: The newly developed grease uses a combination of low viscous base oil and optimized thickener to reduce stir resistance and rolling viscous resistance.
Base Oil Kinetic Viscosity: The viscosity at 40°C varies among different greases, with the newly developed grease having a viscosity of 25 mm²/s.
Grease Types: Various greases are compared, including SR, KVC, and H8, each with different compositions and properties.

Performance Improvements:

Rotational Torque Reduction: The new grease achieves a 50% reduction in rotational torque compared to conventional products, leading to energy savings.
Extended Service Life: The improved heat resistance and base oil retention capacity result in a service life that is twice as long as conventional bearings, allowing for maintenance-free operation.

Testing and Results:

Rotational Torque Measurement: Tests show a significant reduction in rotational torque with the newly developed grease.
Endurance Test: Bearings with the new grease demonstrate twice the volume of remaining oil after testing, indicating enhanced durability.
Fretting Resistance: The new grease exhibits equivalent fretting resistance to H8 grease, as per ASTM D4170 compliant tests.

Applications: The bearings are suitable for household appliances and industrial motors, providing reliable performance under various conditions.

Contact Information: For further inquiries, contact JTEKT CORPORATION at their Nagoya or Osaka head offices.

Catalog excerpts

B1018E Low Torque Long life Deep Groove Ball Bearings for Electrical Motors-1

Optimized grease composition substantially reduces rotational torque & extends service life!! Newly developed grease Grease life short long Combining low viscous base oil and optimized thickener substantially reduces stir resistance. 50% reduction of rotational torque from conventional products saves energy. 2 times longer service life compared to conventional bearings provides maintenance-free operation. Combining improved heat resistance and base oil retention capacity of the thickener with improved heat resistance of the base oil substantially extends bearing service life. Stir resistance JTEKT JTEKT CORPORATION

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B1018E Low Torque Long life Deep Groove Ball Bearings for Electrical Motors-2

■ Endurance test results 50% reduction of rotational torque 2 times the volume of remaining oil after test 80 00 CD 0) 60 CQ —5 o 40 o =3 CD_ 20 —5 _Q c CD [mN^m] 0 Grease name Test conditions Test conditions Bearing Our newly developed grease has equivalent fretting resistance to that of H8 grease. CD —; CD 3 o c =3 Test conditions ^--->r Oscillation motion Fafnir test equipment = Household appliances/ Industrial motors Inquiries: PUBLISHER JTEKT CORPORATION NAGOYA HEAD OFFICE No.7-1, Meieki 4-chome, Nakamura-ku, Nagoya, Aichi 450-8515, JAPAN - TEL:81-52-527-1900 FAX:81-52-527-1911 JTEKT...

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