B40-206 Open Non-Standard JF011E CVT Secondary Pulley Deep Groove Bearing

1. Product Overview

B40-206 non-standard single-row open deep groove ball bearing, dimension 40mm inner bore × 78mm outer diameter × 14mm width, fully interchangeable with original NSK B40-206, matching Nissan JF011E, RE0F10A CVT secondary driven pulley core assembly. Open design without rubber seals, equipped with stamped low-carbon steel cage and C0 standard internal clearance. It bears radial load and slight bidirectional axial load, runs stable and low-noise under long-term high-speed variable torque vibration and high-temperature CVT oil environment inside transmission housing. Made of fully quenched high-purity GCr15 chrome bearing steel with strict dimensional tolerance control, fully compatible with OEM B40-206 assembly requirements. Complete formal quotation will be provided within 24 hours upon inquiry.

2. Key Advantages

• Open structure allows full circulation of CVT transmission oil, excellent heat dissipation, avoids rubber seal aging, swelling and oil leakage under long-time high-temperature oil soaking
• Superfinished deep groove raceway reduces rolling friction coefficient, maintains smooth continuous rotation under frequent pulley variable-speed torque impact
• High-hardness integral GCr15 inner and outer rings deliver excellent wear resistance and anti-fatigue performance, greatly extend the overall service life of CVT transmission
• OEM unified installation dimensions, direct replacement without modifying pulley housing, secondary shaft and matching accessories
• Lightweight stamped steel cage reduces rotation inertia, perfectly adapts to long-term continuous high-speed operation of CVT variable transmission
• Standard P0 precision grade, P6 / C3 clearance can be customized to meet mainstream auto OEM assembly standards
• Stable mass production capacity, cost-effective for auto repair aftermarket and bulk OEM supporting orders

3. Applications

Nissan JF011E, RE0F10A CVT secondary driven pulley assemblies, X-Trail, Qashqai and other compact SUV CVT transmission parts, passenger car automatic gearbox differential auxiliary shafts, light commercial vehicle reducers, medium agricultural machinery transmission components.

4. Technical Specifications

5. Why Choose GQZ Bearing

25+ years professional manufacturer of B series non-standard CVT and 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 anti-wear CVT lubricant filling service. One-on-one professional pulley installation technical guidance and formal detailed quotation within 24h for all RFQs. Stable mass production capacity supports long-term bulk aftermarket and OEM orders, factory direct selling price, stable consistent quality and punctual batch delivery.

6. Quality Assurance

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

All B40-206 bearings pass multi-process strict factory inspection.

7. CTA

Send bulk inquiry for B40-206 open CVT secondary pulley bearings and obtain the following full support:

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

Large-volume OEM cooperation is welcome anytime.

8. FAQ

Q1: Difference between open B40-206 and rubber sealed bearings?
A1: Open bearing has no rubber sealing parts, installed inside CVT housing relying on circulating transmission oil for lubrication and cooling; rubber sealed bearings are used for external exposed dusty shafts with grease lubrication.

Q2: Can B40-206 replace original NSK OEM bearings directly?
A2: Yes, inner bore, outer diameter and width dimensions are fully consistent, no modification to CVT pulley components required during replacement.

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