B30-230 Open Non-Standard Chery 019 CVT Primary Pulley Deep Groove Bearing

1. Product Overview

B30-230 non-standard single-row open deep groove ball bearing, overall dimension 30mm inner bore × 93mm outer diameter × 13mm narrow width, fully interchangeable with original NSK B30-230, exclusive matching bearing for Chery 019 CVT primary drive pulley core assembly. Open design without rubber seals, equipped with stamped low-carbon steel cage and factory standard C0 internal clearance, C3 clearance customizable on demand. It bears heavy composite 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. Manufactured with fully quenched high-purity GCr15 chrome bearing steel and strict micron-level dimensional tolerance control, fully compatible with OEM B30-230 assembly requirements. Complete formal quotation will be provided within 24 hours upon inquiry.

2. Key Advantages

• Open through structure enables full circulation of CVT transmission oil for continuous efficient heat dissipation, completely avoids rubber seal aging, swelling and oil leakage defects under long-term high-temperature oil immersion
• Superfinished ultra-smooth deep groove raceway minimizes rolling friction coefficient, maintains steady continuous rotation under frequent heavy torque impact from primary pulley variable speed operation
• Wide outer diameter thick-wall integrated inner and outer rings with high-hardness GCr15 material deliver outstanding wear resistance and anti-fatigue performance, greatly extend the overall service cycle of Chery 019 CVT transmission
• OEM unified overall installation dimensions, direct plug-and-play replacement without modifying pulley housing, primary drive shaft and matching installation accessories
• Optimized lightweight stamped steel cage lowers rotation inertia, perfectly adapts to long-term continuous high-load high-speed working conditions of CVT variable transmission
• Standard P0 precision grade, P6 / C3 clearance customizable to meet domestic auto OEM assembly matching standards
• Stable mass production capacity with sufficient stock supply, high cost performance for auto repair aftermarket and bulk OEM supporting orders

3. Applications

Chery 019 series CVT primary drive pulley assemblies, domestic compact passenger car automatic gearbox heavy-load differential shafts, light commercial vehicle large torque reducers, medium-sized agricultural machinery transmission core load-bearing components.

4. Technical Specifications

5. Why Choose GQZ Bearing

25+ years professional manufacturer of B series non-standard CVT & 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 B30-230 bearings pass multi-process strict factory inspection.

7. CTA

Send bulk inquiry for B30-230 open wide OD CVT primary 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: What is the difference between open B30-230 and rubber sealed bearings?
A1: Open bearing has no rubber sealing lips, installed inside closed CVT housing relying on circulating transmission oil for lubrication and cooling; rubber sealed bearings are used for external exposed dusty shafts with independent grease lubrication.

Q2: Can B30-230 replace original NSK OEM bearings directly?
A2: Yes, inner bore, outer diameter and narrow width dimensions are fully consistent, no modification to Chery 019 CVT pulley components required during replacement.

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