High-Speed 8mm Shaft 630/8-2RS Rubber Sealed Motor Bearing
| Item No : | 630/8-2RS (Widened Micro Series) |
| Size (d*D*B) : | 8x22x11mm |
| Material : | Chrome Steel Gcr15 |
| Lead Time : | 3-5 days |
| Weight : | 0.016KG |
| MOQ : | 100 pcs |
| Service : | Support Sample Testing |
⚙️Product Description:
The 630/8-2RS (8x22x11mm) is a specialized extra-wide micro deep groove ball bearing engineered for 8mm shaft applications requiring extended operational endurance. Featuring an 11mm width—4mm wider than standard 608-series bearings—it accommodates a significantly expanded internal grease chamber for maximum wear resistance and thermal stability in high-speed micro-drives. As an agile B2B international distributor, we deliver premium 630/8-2RS bearings under our quality-controlled RMO brand alongside flexible global procurement for alternative tier-one OEM brands.
⚙️Product features:
- 8mm Shaft Extra-Wide Profile: Engineered with an 11mm width over standard 8x22x7mm profiles, offering superior axial stiffness and enhanced grease holding capacity.
- Dual Contact Rubber Seals (2RS): Tight NBR rubber seals block ultra-fine dust and moisture while retaining factory grease during high-RPM rotation.
- Quiet & High-Speed Performance: Precision-ground raceways combined with high-grade steel balls reduce micro-vibrations and operational noise.
- Flexible OEM & Wholesale Supply: Directly source factory-direct RMO stock or leverage our supply network for multi-brand international sourcing.
⚙️Product Application:
Optimized for micro-scale rotating assemblies requiring high stiffness and extended maintenance intervals, the 630/8-2RS bearing is ideal for:
- Micro brushless DC motors, drone (UAV) power systems, and high-RPM miniature actuators.
- Precision medical devices, laboratory instruments, and optical equipment drives requiring 8mm shafts.
- Small handheld power tools, micro air pumps, and hobby RC gearboxes needing extra-wide bearings.
- 3D printer drive mechanisms and automated micro-conveyor rollers handling heavy continuous duty.
⚙️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 / Industry No. | |
| Bearing Type | |
| Metric Dimensions | 8x22x11mm (Inner d x Outer D x Total Width/Height H) |
| Seal Type | Double Rubber Seals / 2RS, Pre-greased |
| Width Comparison | 11mm Extra Wide (+4mm wider than standard 608 series) |
| Material | |
| Target Application | Micro Motors, Drones & Precision Medical Devices |
| Brand | RMO (Own Brand) / Neutral / OEM Custom / Other Global Brands |
| 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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