B25-157 Open Mitsubishi CVT Auxiliary Shaft Bearing

1. Product Overview

B25-157 non-standard single-row open deep groove ball bearing, dimension 25mm inner bore × 68mm outer diameter × 18mm width, interchangeable with NSK B25-157 and OEM MD700207, for Mitsubishi CVT intermediate auxiliary shafts. Open design without rubber seals, stamped steel cage, standard C0 clearance, C3 optional. It bears radial & slight axial load, stable low-noise running under high temp CVT oil environment. Made of quenched GCr15 bearing steel with tight tolerance, direct OEM replacement. Formal quotation within 24h upon inquiry.

2. Key Advantages

• Open design for full CVT oil circulation, excellent heat dissipation, no seal aging or leakage
• Superfinished raceway reduces friction, less heat under frequent torque fluctuation
• High-hardness GCr15 rings for outstanding wear & fatigue resistance, extend gearbox service life
• Standard OEM size, plug-and-play without housing/shaft modification
• Light stamped cage lowers rotation inertia, fit long-term high-speed CVT operation
• P0 standard precision, P6 / C3 clearance customizable to OEM demand
• Stable mass production, cost-effective for aftermarket & bulk OEM orders

3. Applications

Mitsubishi CVT intermediate auxiliary shafts, compact car automatic gearbox differential, light commercial vehicle mini reducers, small agricultural machinery transmission parts. Cross OEM part: MD700207.

4. Technical Specifications

Dimension drawings & spec sheets available on request.

5. Why Choose GQZ Bearing

25+ years B-series non-standard CVT bearing manufacturer. All goods pass high-speed rotation, shock and fatigue durability test before shipment. Custom anti-rust coating & high-temp CVT grease filling available. Professional installation guidance and quotation within 24h for all RFQs. Stable supply for bulk aftermarket & OEM orders, factory direct price, consistent quality & on-time delivery.

6. Quality Assurance

• Raw material chemical & hardness inspection
• Raceway superfinishing roughness test
• High-temp CVT oil circulation aging test
• Vibration fatigue rotation cycle test
• Full dimension tolerance sorting
• 100% appearance marking inspection
• Random high-speed sampling test before packing

All B25-157 bearings go through multi-step strict factory inspection.

7. CTA

Inquire bulk B25-157 Mitsubishi CVT bearings to get full support:

1. Complete formal quotation within 24 hours
2. Dimension drawings & press-fit installation guide
3. Custom anti-rust treatment & special CVT lubricant filling
4. Exclusive long-term wholesale factory price without middleman markup

Welcome large-volume OEM cooperation.

8. FAQ

Q1: Difference between open B25-157 and sealed bearings?
A1: Open bearing installed inside gearbox with circulating CVT oil lubrication; sealed bearings for external dusty shafts with grease.

Q2: Can B25-157 replace original NSK/OEM parts directly?
A2: Yes, identical dimensions, no modification needed, replaces NSK B25-157 and MD700207.

Q3: Lubrication requirement?
A3: Designed for CVT transmission oil circulation; high-speed gear grease can be filled for independent assembly.