B49-5UR Open UR Groove Deep Groove Auto Gearbox Bearing

B49-5UR non-standard open deep groove ball bearing, dimension 49mm bore × 95mm outer diameter × 18mm width, specially matched for automobile CVT and manual gearbox transmission shafts. Open design without rubber seals, outer ring machined with UR positioning snap ring groove for axial limit, equipped with stamped steel cage and C0 standard clearance. It bears radial load and minor bidirectional axial load, runs stably and quietly at continuous high speed under frequent shifting vibration. Made of fully quenched GCr15 chrome bearing steel with precise dimensional tolerance, fully interchangeable with original B49-5UR. Formal quotation will be provided within 24 hours after inquiry.

• Open structure allows full circulation of gearbox lubricating oil, excellent heat dissipation, no aging failure risk of rubber seal under long-term high-temperature oil immersion
• Outer ring integrated UR snap ring groove, matched with retaining ring for accurate axial positioning, simplify assembly without extra limiting parts
• Low-friction deep groove raceway, stable operation under continuous gear shifting impact and transmission vibration
• High-hardness full heat-treated GCr15 steel, outstanding wear and fatigue resistance to extend gearbox service cycle
• Original matching integral dimension, direct replacement without modifying gearbox housing and shaft components
• Lightweight stamped steel cage reduces rotation inertia, adapts to medium-high speed continuous transmission working conditions
• Standard P0 precision grade, P6 customizable to meet automotive OEM assembly matching standards

Automotive CVT & manual gearbox auxiliary shafts, car differential assemblies, light commercial vehicle reducers, small agricultural machinery transmission parts.

Dimension drawings and technical spec sheets available on request.

25+ years professional manufacturer of non-standard UR groove gearbox bearings for vehicles. All finished bearings pass high-speed rotation test, shock load test and fatigue durability test before delivery. Support customized anti-rust surface coating and special high-temperature gearbox lubricant filling service. One-on-one professional installation technical guidance and complete formal quotation within 24h for all purchase inquiries. Stable mass production capacity meets long-term bulk orders from machinery factories and global distributors, factory direct selling price, stable consistent quality and punctual batch delivery.

• Raw GCr15 steel hardness & chemical composition incoming inspection
• High-precision raceway grinding roughness detection
• UR snap ring groove dimensional tolerance inspection
• Open bearing oil circulation high-speed aging test
• Continuous vibration load rotation fatigue life test
• Full dimension sorting inspection
• 100% visual appearance check before packaging
• Random sampling performance test before shipment

All B49-5UR bearings pass multi-process strict factory inspection.

Send bulk inquiry for B49-5UR open UR groove transmission bearings and receive the following support:

1. Complete formal detailed quotation within 24 hours
2. Standard dimension drawings & press-fit installation operation guidance
3. Custom anti-rust surface treatment and special lubricant filling service
4. Exclusive long-term bulk factory wholesale price without intermediate markup

Large-volume OEM cooperation is welcome anytime.