B45-111E Open Deep Groove Auto Gearbox Transmission Bearing

B45-111E non-standard open deep groove ball bearing, dimension 45mm bore × 105mm outer diameter × 21mm width, matched for passenger car CVT, automatic and manual gearbox intermediate & differential shafts. Open design without rubber seals, equipped with stamped steel cage and C0 standard clearance. It bears radial load and slight bidirectional axial load, runs low-noise and stably under long-time high-speed shifting vibration. Produced with fully quenched high-purity GCr15 chrome steel and tight dimensional tolerance, fully interchangeable with original OEM B45-111E. Complete formal quotation will be offered within 24 hours after inquiry.

• Open structure allows full gear oil circulation inside gearbox, outstanding heat dissipation, no aging or swelling failure of rubber seals under long-term high-temperature oil immersion
• Superfinished deep groove raceway cuts rolling friction, stable continuous operation under frequent variable-speed impact
• Uniform high-hardness GCr15 steel delivers excellent wear and anti-fatigue performance, greatly extend transmission service cycle
• OEM unified overall dimension, direct replacement without modifying gearbox housings or shaft components
• Light stamped steel cage lowers rotation inertia, adapts to medium-high speed long-duration transmission working conditions
• Standard P0 precision grade, customizable P6/C3 clearance to meet automotive OEM assembly matching standards

Passenger car CVT & automatic gearbox differential shafts, vehicle transmission intermediate shafts, light commercial vehicle reducers, small agricultural machinery transmission assemblies.

Dimension drawings and technical spec sheets can be provided on request.

25+ years professional manufacturer of non-standard open automotive gearbox bearings. All finished bearings pass high-speed continuous rotation test, shock load test and long-cycle 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 formal quotation within 24h for all RFQs. Stable mass production capacity satisfies bulk OEM and global distributor orders, factory direct selling price, stable consistent quality and punctual batch delivery.

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

All B45-111E bearings pass multi-process strict factory inspection.

Send bulk inquiry for B45-111E open transmission bearings and obtain 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 transmission lubricant filling service
4. Exclusive long-term bulk factory wholesale price without intermediate markup

Large-volume OEM cooperation is welcome anytime.

Q1: What is the difference between open B45-111E and rubber sealed bearings?
A1: Open design has no rubber seals, relies on circulating gear oil for lubrication and heat dissipation for internal gearbox positions; rubber sealed bearings apply to external dusty shafts with grease lubrication.

Q2: Can B45-111E replace original OEM bearings directly?
A2: Yes, inner bore, outer diameter and width dimensions are fully consistent, no modification to gearbox components required during replacement.

Q3: Applicable lubrication mode?
A3: Designed for gearbox circulating transmission oil lubrication; fill high-speed anti-wear gear grease if used separately.