B20-141 Open Manual Transmission Input Shaft Bearing

1. Product Overview

B20-141 non-standard single-row open deep groove ball bearing, dimension 20mm inner × 62mm outer × 16mm widthAlibaba. Fully interchangeable with NSK B20-141, alternative part 6206R-4C3, matched for Asian passenger car manual transmission input shafts. Open design without rubber seals, stamped low-carbon steel cage, standard C0 clearance, C3 clearance customizable. It bears medium radial load and slight bidirectional axial load, stable low-noise operation under high-temperature gear oil environment inside gearbox housing. Made of quenched GCr15 bearing steel with tight micron tolerance, direct OEM plug-and-play replacement. Formal quotation within 24h upon inquiry.

2. Key Advantages

• Open through-hole design for full gear oil circulation, efficient heat dissipation, no rubber seal aging or oil leakage
• Superfinished smooth raceway reduces rolling friction, less heat accumulation during long high-speed shifting
• Thick-wall high-hardness inner/outer rings provide excellent wear & anti-fatigue performance, extend gearbox service life
• Standard OEM mounting dimensions, no modification to gearbox housing or input shaft during assembly
• Light stamped steel cage lowers rotation inertia, adapts to continuous high-speed operation of transmission input parts
• P0 standard precision, P6 accuracy and C3 clearance available for customization
• Stable mass production & sufficient stock, cost-effective for aftermarket repair and bulk OEM orders

3. Applications

Asian passenger car manual transmission input shafts, compact vehicle gearbox intermediate auxiliary shafts, light commercial vehicle medium-load reducers, small agricultural machinery transmission moving components. Cross reference: 6206R-4C3, B20-141UR.

4. Technical Specifications

5. Why Choose GQZ Bearing

25+ years professional manufacturer of B series non-standard transmission bearings. All bearings pass high-speed rotation, shock and fatigue durability test before shipment. Custom anti-rust coating and high-temperature gear grease filling supported. Professional transmission installation guidance and fast quotation for all RFQs. Stable bulk supply, factory direct price, consistent quality & on-time batch delivery.

6. Quality Assurance

• Raw steel hardness & chemical composition inspection
• Raceway superfinishing roughness detection
• High-temp gear oil circulation aging durability test
• Vibration fatigue rotation cycle test
• Full dimension tolerance sorting inspection
• 100% visual appearance marking check before packing
• Random high-speed sampling test before shipment
• All B20-141 bearings pass multi-step strict factory inspection.

7. CTA

Inquire bulk B20-141 transmission input shaft bearings to get full support:

1. Complete formal quotation within 24 hours
2. Standard dimension drawings & shaft press-fit installation guide
3. Custom anti-rust surface treatment & dedicated gear lubricant filling
4. Exclusive long-term factory wholesale price without middle markup

Welcome large-volume OEM cooperation.

8. FAQ

Q1: Difference between open B20-141 and sealed bearings?
A1: Open bearing installed inside closed gearbox with circulating gear oil cooling & lubrication; sealed bearings for external dusty shafts with independent grease.

Q2: Can B20-141 replace original NSK bearing directly?
A2: Yes, full matching dimensions, compatible with NSK B20-141 and equivalent 6206R-4C3, no modification needed.

Q3: Suitable lubrication mode?
A3: Designed for gearbox circulating oil; high-speed anti-wear gear grease can be filled for standalone assembly.