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AC Generator Deep Groove Ball Bearing
The entire vehicle series
Product Description
VBA Bearing specializes in manufacturing high-performance alternator bearings for automotive charging systems. These bearings are designed to operate at high speeds and withstand continuous electrical load conditions, ensuring reliable alternator performance.
Automotive alternator bearings come in two main categories:
Standard deep groove ball bearings (6200/6300 series) – widely used and cost-effective.
Special automotive alternator bearings (B-series) – non-standard or optimized designs with specific widths, seals, and C3 clearance for high-speed, high-temperature conditions.
Model | Inner Diameter (d) | Outer Diameter (D) | Width (B) | Type | Common Applications | Notes / Equivalent |
|---|---|---|---|---|---|---|
6002 | 15 mm | 32 mm | 9 mm | Deep Groove Ball | Slip ring end (Non-locating) | Compact alternators |
6003 | 17 mm | 35 mm | 10 mm | Deep Groove Ball | Slip ring end | Most small/medium cars |
6201 | 12 mm | 32 mm | 10 mm | Deep Groove Ball | Small alternators & motorcycles | - |
6202 | 15 mm | 35 mm | 11 mm | Deep Groove Ball | Drive end / Slip ring end | Very common |
6203 / 6203-2RS/C3 | 17 mm | 40 mm | 12 mm | Deep Groove Ball | Drive end (Pulley side) | Most popular standard model |
6302 | 15 mm | 42 mm | 13 mm | Deep Groove Ball | Heavy-duty drive end | Medium vehicles |
6303 / 6303-2RS/C3 | 17 mm | 47 mm | 14 mm | Deep Groove Ball | Heavy-duty drive end | Trucks, SUVs, commercial vehicles |
B8-23D / B8-85D | 8 mm | 23 mm | 11–14 mm | Special Alternator Bearing | Small high-speed alternators | Motorcycle & compact generators |
B10-50D | 10 mm | 27 mm | 11 mm | Special Alternator Bearing | Small alternators | - |
B15-45D / B15-45 | 15 mm | 45 mm | 14 mm | Special Alternator Bearing | Japanese & Korean vehicles | Common in Toyota, Honda |
B15-69D | 15 mm | 35 mm | 13 mm | Special Alternator Bearing | Drive / Slip ring end | - |
B15-86D | 15 mm | 47 mm | 14 mm | Special Alternator Bearing | Various passenger cars | - |
B17-31D | 17 mm | 40 mm | 17.5 mm | Special Alternator Bearing | Drive end | - |
B17-47D | 17 mm | 47 mm | 24 mm | Special Alternator Bearing | Heavy-duty drive end | Wider width for higher load |
B17-52D | 17 mm | 52 mm | 15 mm | Special Alternator Bearing | Drive end | - |
B17-92D | 17 mm | 52 mm | ~17–18 mm | Special Alternator Bearing | Drive end (Bosch/Valeo) | - |
B17-99D / B17-99DU / B17-99DDW | 17 mm | 52 mm | 17 mm | Special Alternator Bearing | Drive end – very common | NSK/NTN, Bosch 6G series, Valeo |
B17-102D / B17-102DG3 / B17-102DG4 / B17-102DG46 | 17 mm | 47 mm | 14 mm | Special Alternator Bearing | Drive end | Equivalent to 6303 size, Nissan/Honda/Opel |
B17-116D | 17 mm | 52 mm | 18 mm | Special Alternator Bearing | Drive end | - |
B17-123D | 17 mm | 52 mm | 21 mm | Special Alternator Bearing | Heavy-duty drive end | Higher load capacity |
B17-126D / B17-126DDU | 17 mm | 62 mm | 17.6 mm | Special Alternator Bearing | Larger alternators | - |
B17-127D | 17 mm | 62 mm | 20 mm | Special Alternator Bearing | Drive end – high power alternators | - |
High precision and excellent sealing (2RS or sealed type)
Superior high-temperature resistance (up to 150°C+)
Low noise and vibration for smooth operation
High-speed capability and long service life
Resistant to dust, moisture, and harsh engine environments
Direct replacement for OEM bearings
Region | Brands |
|---|---|
Japan | Toyota, Honda, Nissan, Mazda, Mitsubishi |
Korea | Hyundai, Kia |
USA | Ford, Chevrolet |
Europe | BMW, Mercedes-Benz, Volkswagen, Audi |
VBA Bearing is a professional automotive bearing manufacturer in China, supplying high-quality products to global markets including the Middle East, Southeast Asia, Africa, Europe, and the Americas.
Our products are widely exported to UAE, Saudi Arabia, Egypt, Nigeria, South Africa, Indonesia, Thailand, Brazil, Mexico, USA, Turkey, and more. We support bulk orders, OEM customization, and fast worldwide delivery.
With More than twenty yearsof focused expertise, we are a trusted Chinese manufacturer and international distributor of high-quality bearings.
Backed by advanced, fully developed production facilities and one of the largest in-stock inventories in the industry, we confidently supply excellent products at very competitive prices to clients across the globe.
We specialize in both standard and fully customized bearing solutions:
• Production of various bearing types and equivalent brands
• Private labeling / custom brand manufacturing
• Your own packaging design fully implemented
• Precision laser engraving of your logo or brand name on the bearings
All copyrights, designs, and tooling belong exclusively to you, the customer.
We strictly maintain confidentiality and never share or reuse your brand information with any third party.
