B23-9 Open Mini CVT Control Shaft Bearing

B23-9 non-standard single-row open deep groove ball bearing, dimension 23mm inner × 35mm outer × 9mm ultra-narrow width. Fully interchangeable with original NSK B23-9, matched for Asian passenger car CVT hydraulic valve tiny micro shafts. Open design without rubber seals, stamped low-carbon steel cage, standard C0 clearance, C3 clearance customizable. It bears light radial load and slight two-way axial load, runs quiet and stable under long-term ultra-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 will be provided 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
• Integrated thin-wall high-hardness inner and outer rings deliver reliable wear and fatigue resistance, extend CVT service life
• Unified OEM installation size, no modification to gearbox housing or micro shaft during assembly
• Ultra-light stamped steel cage cuts rotation inertia, fits long-term stable high-speed operation of miniature control 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 hydraulic control valve micro shafts, compact car automatic gearbox miniature auxiliary shafts, light commercial vehicle precision tiny reducers, small agricultural machinery fine 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 B23-9 bearings pass multi-step strict factory inspection.

Inquire bulk B23-9 miniature CVT control shaft bearings to get full support:

1. Complete formal quotation within 24 hours
2. Standard dimension drawings and micro 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 B23-9 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 B23-9 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.