BMT Bearing is a professional bearing manufacturer and supplier, offering a wide range of automotive bearings, industrial bearings, agricultural bearings, and motorcycle bearings.
This product series supports rotating shafts or moving parts, reducing friction, minimizing vibration, and ensuring the stability of power transmission and mechanical movement.
Support the high-speed rotation of the crankshaft and withstand the severe impacts from combustion and explosions.
Includes the big end and small end needle roller bearings of the connecting rods, connecting the pistons to the crankshaft.
Control the smooth operation of the valve opening and closing mechanism.
Support the gear shafts, ensuring smooth shifting and efficient power transmission.
Located in the steering column (usually tapered roller bearings), controlling the flexible steering of the steering wheel and absorbing road impacts.
Connect the frame to the rear swingarm, ensuring smooth vertical movement of the rear suspension system.
Mounted in the center of the front and rear wheel hubs, they directly bear the weight of the vehicle and road bumps, ensuring smooth high speed wheel rotation.
Used to cut off and transmit engine power, ensuring smooth gear shifting.
Supporting Rotating Components. Motorcycle bearings provide stable support for rotating components, limiting unnecessary radial or axial displacement and maintaining correct operating positions.
Reducing Operating Friction. Bearings reduce frictional resistance between moving parts through rolling contact, minimizing mechanical energy loss and frictional heat generation, ensuring smooth operation.
Ensuring Stable Power Transmission. Power generated by the engine needs to be transmitted to the wheels through the crankshaft, clutch, gearbox, and final drive system. Bearings provide stable support for these rotating components, helping to maintain the correct position of the shaft system and ensuring a more stable power transmission process.
Bearing Radial and Axial Loads. Crankshaft bearings primarily bear the dynamic loads generated by engine operation; Gearbox bearings bear the radial and some axial loads generated by gear transmission; Wheel bearings bear the vehicle weight, road impacts, and operating loads; Steering bearings bear the axial, radial, and overturning loads during steering; Rocker arm bearings primarily bear the swaying and higher loads generated by rear suspension movement.
Reduce Vibration and Operating Noise. High-precision bearings help rotating parts maintain smooth operation and reduce vibration and noise caused by unstable rotation, abnormal clearance, or component eccentricity.
| Parameter | 60/22 Crankshaft Bearing | 6201 Wheel Bearing |
|---|---|---|
| Precision Grade | P5 (ISO 492 Class 5) | P0 / P6 optional |
| Vibration Level (V) | V3 (Low noise ≤ 28dB) | V2 / V3 optional |
| Steel Grade | GCR15 (Japanese SUJ2 equivalent) | GCR15 / Chrome Steel |
| Grease Type | KLUBER NBU 15 (-40°C to +150°C) | Shell Gadus S2 (-30°C to +120°C) |
| Max RPM | 18,000 RPM | 15,000 RPM |
| Dynamic Load Rating (Cr) | 12.5 kN | 7.8 kN |
| Bearing Location | Main Risks | Recommended Maintenance Priorities |
|---|---|---|
| Crankshaft Bearing | High speed, high temperature, and for abnormal engine noise | Check the lubrication system |
| Gearbox | Gear load, lubrication contamination | Change the lubricating oil |
Established in 2004, BMT Bearing operates a 30,000-square-meter industrial park and modern manufacturing facility in Yuyao. We are equipped with over 100 automated grinding and assembly lines, utilizing top-tier high-precision grinding and super-finishing machines from renowned manufacturers such as Wuxi Gaomida, Wuxi Guotai, and Ningbo Zhongce. Our factory holds ISO 9001:2000 and IATF 16949:2016 quality management system certifications, implementing standardized quality control across the entire process—from raw material intake to final product shipment.
Backed by a robust technical team, we offer OEM/ODM services and can provide initial design drawings within 1-3 working days. We also provide free samples and support low minimum order quantities (MOQ), starting from as few as one unit.
BMT Bearing supports DAP/FOB delivery from warehouses across China (including Guangzhou) as well as cargo consolidation and distribution services. We are supported by a professional team dedicated to international sales and technical support. Upon request, we can dispatch 1-3 senior technical engineers overseas to provide on-site guidance for installation and commissioning.
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