QJ210LB Four-Point Contact Ball Bearing for Automotive Steering Systems
| Item No : | QJ210LB / BAQ210LB |
| Size (d*D*H) : | 50x90x20mm |
| Bearing Type | Four-Point Contact Ball Bearing |
| Material : | Bearing steel / Chrome Steel GCr15 |
| Lead Time : | 3-5 days |
| Weight : | 0.48KG |
| MOQ: | 10 pcs |
⚙️Product Description:
Looking for a high-performance solution to enhance the stability and precision of vehicle steering mechanisms? Our QJ210LB Automotive Steering System Bearing (Size: 50x90x20mm) is a premium four-point contact ball bearing engineered to withstand heavy axial loads in both directions. Designed specifically for tight automotive spaces, it delivers excellent rigidity and flawless rotational accuracy under complex road conditions. As a trusted B2B bearing trader, we supply this high-demand automotive component under our proprietary quality “RMO” brand, while also leveraging our extensive global supply chain to source other major tier-1 international brands based on your custom requirements.
⚙️Product Features:
- Four-Point Contact Efficiency: The unique internal geometry allows a single QJ210LB bearing to replace double-row angular contact bearings, saving critical space and reducing overall vehicle weight.
- Dual-Directional Axial Load: Exceptionally capable of carrying severe axial loads in both directions combined with moderate radial loads, perfect for steering link inputs.
- Automotive-Grade Precision: Manufactured to P6/P5 tolerance classes from high-purity GCr15 chrome steel, ensuring ultra-low noise, minimal friction, and maximum driving safety.
- Optimized Outer Ring Suffix (LB): Features customized cage or outer ring specifications optimized for high-vibration automotive environments, extending operational lifespan.
- Flexible Sourcing & Trading: Benefit from factory-direct pricing with our RMO brand, or request direct trade sourcing for international market-leading brands.
⚙️Product Application:
Engineered for safety-critical and high-load automotive modules, the QJ210LB bearing is primarily utilized in:
- Automotive steering columns, steering gearboxes, and rack-and-pinion steering mechanisms.
- Manual and automatic vehicle transmissions/gearboxes.
- Electric vehicle (EV) drive motors and powertrain differentials.
- Heavy-duty truck steering linkages and agricultural vehicle machinery.
- Industrial reducers and high-speed pumps requiring axial backstopping.
⚙️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. | QJ210LB / BAQ210LB |
| Size | 50x90x20mm |
| Bearing Type | Four-Point Contact Ball Bearing |
| Rings and Balls Material | Chrome Steel GCr15 / Bearing Steel |
| Precision | P6 (ABEC-3) / P5 (ABEC-5) |
| Limiting Speed | Highly optimized for automotive dynamics |
| Lead Time | |
| Brand | RMO / CW / Neutral / OEM / Other Brands |
| Package | |
| Shipping Port | Guangzhou, Ningbo, Shanghai |
| Payment | 100% T/T, or 30% T/T In Advance, 70% T/T After Finished Production |
⚙️Automotive Bearing Model List:
| Bearings No. | ID(d*D*H)mm | Weight (KG) |
| CW155TN9 | 52*90*24 | 0.65 |
| DAC152TN9 | 50*90*24 | 0.67 |
| QJ210LB | 50*90*20 | 0.48 |
| BAQ3818E | 42*90*20 | 0.57 |
| BAQ3922BA(QJ110ZZ) | 50*80*16 | 0.27 |
| B-DE08A92 | 40*67*24 | 0.36 |
| QJ20107(621507) | 37*74*18 | 0.32 |
| LR203-2R5R | 17*47*12 | 0.11 |
| QJ109EZ | 40*75*85*16 | 0.35 |
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