B20-170 Open CVT Intermediate Shaft Wide OD Bearing

B20-170 non-standard single-row open deep groove ball bearing, dimension 20mm inner × 70mm outer × 17mm width. Fully interchangeable with original NSK B20-170, matched for Asian passenger car CVT intermediate transmission 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, runs stable and low-noise under long-term high-speed rotation and high-temperature CVT oil environment inside sealed gearbox housing. Made of quenched GCr15 bearing steel with strict micron tolerance, direct plug-and-play OEM replacement. Complete formal quotation within 24 hours upon inquiry.

• Open through-hole structure enables full CVT oil circulation for efficient heat dissipation, no seal aging or oil leakage
• Superfinished smooth raceway reduces friction loss, less heat accumulation under continuous high-speed operation
• Thick-wall high-hardness inner and outer rings deliver reliable wear and anti-fatigue performance, extend CVT service life
• Unified OEM installation size, no modification to gearbox housing or intermediate shaft during assembly
• Light stamped steel cage cuts rotation inertia, fits long-term stable high-speed operation of transmission auxiliary parts
• P0 standard precision, P6 accuracy and C3 clearance available for customization
• Stable mass production with sufficient stock, cost-effective for aftermarket and bulk OEM orders

Asian passenger car CVT intermediate transmission shafts, compact car automatic gearbox differential auxiliary shafts, light commercial vehicle medium-load reducers, small agricultural machinery transmission moving components.

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

• Raw steel hardness and chemical composition inspection
• Raceway superfinishing roughness test
• High-temperature CVT oil circulation aging 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 B20-170 bearings pass multi-step strict factory inspection.

Inquire bulk B20-170 CVT intermediate shaft bearings to get full support:

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

Welcome large-volume OEM cooperation.

Q1: Difference between open B20-170 and sealed bearings?
A1: Open bearing is installed inside closed gearbox with circulating CVT oil for lubrication and cooling; sealed bearings are used for external dusty shafts with independent grease lubrication.

Q2: Can B20-170 replace original NSK bearing directly?
A2: Yes, all dimensions are fully consistent, no modification required during installation.

Q3: Suitable lubrication mode?
A3: Designed for CVT transmission oil circulation; high-speed anti-wear gear grease can be filled for independent assembly.