RMO 15x28x7mm 6902ZZ High-Speed Spindle & Rear Hub Bearing Supplier
| Item No : | 6902ZZ (Metal Shield) / 6902-2RS (Rubber Seal) |
| Size (d*D*B) : | 15x28x7mm |
| Material : | Chrome Steel GCr15 |
| Lead Time : | 3-5 days |
| Weight : | 0.016KG |
| MOQ : | 100 pcs |
| Service : | Support Sample Testing |
⚙️Product Description:
Need a 15mm shaft bearing that surpasses the load limits of ultra-thin designs while demanding exceptional high-speed acoustics? The 6902-2RS and 6902ZZ Deep Groove Ball Bearings (15x28x7mm) are engineered for dynamic heavy-lifting. By increasing the cross-section to 28mm OD and 7mm width, the 6902 comfortably handles substantially higher radial loads than the 6802. Furthermore, we offer customizable cage options—traditional stamped steel for thermal endurance, or Nylon PA66 for ultra-quiet, high-RPM operations. It is the powerhouse component for premium bicycle rear hubs, high-speed textile spindles, and mid-sized industrial motors. As a versatile B2B bearing trader, we empower your purchasing strategy: maximize profit margins with our rigorous RMO proprietary brand, or task us to source tier-1 global brands specifically equipped with PA66 cages to meet your strict OEM specifications.
⚙️Product Features:
- Cage Material Versatility: Select the Nylon PA66 cage (often suffix TN9) for reduced friction, exceptional high-speed performance, and whisper-quiet operation; or stick to the Steel cage (J) for maximum structural durability and elevated temperature resistance.
- Enhanced Load Architecture: The robust 15x28x7mm geometry allows for larger internal ball bearings, effectively doubling the dynamic load rating compared to the thinner 6802 series, making it perfect for drive-side applications.
- Tailored Sealing Solutions: Specify 6902-2RS (Dual Rubber Seals) for outdoor cycling rear hubs subjected to water and mud, or 6902ZZ (Dual Metal Shields) for dust-free enclosed motorized equipment.
- ABEC-Grade Rotational Precision: Manufactured from high-carbon GCr15 steel, delivering micro-vibration control and thermal stability essential for continuous high-RPM industrial processes.
- Dual-Track Sourcing Network: Whether you are an aftermarket distributor ordering container-loads of cost-effective RMO bearings, or an aerospace contractor needing specific traceable international brands, our trade network delivers.
⚙️Product Applications:
With its superior load rating and flexible cage options, the 6902 series is highly sought after in:
- Premium cycling rear hubs, freehubs, and high-impact mountain bike pivot points.
- High-speed spindles for textile machinery, yarn spinning frames, and CNC routers.
- Mid-sized brushless DC motors (BLDC), alternators, and household appliance motors (e.g., washing machines).
- Automated sorting conveyors, high-speed automated packaging rollers, and precision gearboxes.
- Specialized B2B sports equipment distributors and industrial motor repair facilities globally.
⚙️Precautions:
| 1. Keep clean | 2. Use with caution | 3. appropriate tool | 4. Hot-loading | 5. Be careful of rust |
| Dust will have a bad effect on the bearing, so keep the surrounding clean. | Strong impact during use can easily cause scratches and indentations. | Avoid replacing existing tools, and use appropriate tools. | Bearings are precision parts, so hot installation is recommended. | Sweat on your hands during operation will cause rust, so it is best to wear gloves. |
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⚙️Obtain Certificate:
About Rimao
Since its establishment in 2011, Rimao Bearing has combined international vision with local wisdom and injected innovative ideas into every bearing and pulley with its profound industry accumulation and unremitting pursuit of technology. We have not only passed CE and ROHS certification, but also set a new benchmark in the industry and led the development trend of the bearing industry.
We are not just a ball bearing and roller bearing importer and wholesaler. We provide real solutions to help you achieve the product and design goals set by your customers. With more than 20 years of production and sales experience, tens of thousands of models and specifications, we look forward to cooperating with you!
⚙️Technical Parameters:
| Model No. | 6902ZZ / 6902-2RS (61902 Series) |
| Size | 15x28x7mm |
| Bearing Type | Light Series Thin Section Ball Bearing |
| Load Category | Light-to-Medium Duty / High-Speed |
| Cage Options | Stamped Steel OR Nylon PA66 / TN9 |
| Material | Chrome Steel GCr15 |
| Sealing Form | |
| Dynamic Load (Cr) | |
| Static Load (Cor) | ~ 2,250 N |
| Max RPM | ~ 24,000 RPM (Grease / Reference value for ZZ metal shield version) |
| Working Temperature | -20°C to +120°C |
| Brand | RMO Brand Wholesale & Global Brand Sourcing |
| Package | Individual plastic bag, plastic tube or original RMO brand box |
| Lead Time | 3-5 days for stock; 7-15 days for bulk orders |
| Shipping | Express (DHL/FedEx/UPS), Air Freight, Sea Freight |
| Payment | 100% T/T, or 30% T/T In Advance, 70% T/T After Finished Production |
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