KYDE 10PCS R8-2RS Ball Bearing Double-Sided Seal 1/2x1-1/8x5/16 Suitable for Motor, Wheelchair Front Foot Wheel Fork
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Strategic Product Selection: Standard vs. Premium Series
To provide the most cost-effective solutions for diverse engineering requirements, we offer two distinct performance tiers. Choosing the right grade ensures optimal machine performance and maximizes your ROI.
Quick Comparison Table
| Feature | Standard Series | Premium High-Precision Recommended |
|---|---|---|
| Material | GCr15 Steel (Industrial Grade) | High-Purity GCr15 (Refined Processing) |
| Precision Class | ISO P0 / ABEC-1 | ISO P6 / P5 (ABEC-3 / ABEC-5) |
| Speed Rating | 500 – 1,000 RPM | 2,500 – 10,000 RPM |
| Noise & Vibration | Z0 - Z1 (Standard) | ZV2 - ZV3 (Ultra-Quiet/EMQ) |
| Service Life | Standard Lifecycle | Extended Life (2-3x MTBF) |
| Consistency | High Value / Cost-Effective | Rigorous Quality Control & Stability |
Which Series is Right for Your Application?
1. The Standard Series
Best for Low-Speed & Budget-Conscious Projects
- Ideal for: Simple mechanical assemblies, manual equipment, and low-load applications.
- The Advantage: Provides a reliable, industry-standard solution at a competitive price point where high precision is not a critical requirement.
2. The Premium High-Precision Series
Best for High-Performance & Critical Machinery
- Ideal for: Electric motors, high-speed CNC spindles, automated production lines, and precision instruments.
- The Advantage: Engineered for high-speed stability and minimal friction. ZV2-ZV3 vibration rating ensures quiet operation and significantly reduces downtime (Lower Total Cost of Ownership).
Why We Offer Two Tiers?

Feathers: 1. Single-row, pre-lubricated, normal accuracy. 2. This R8-2RS 1/2x1-1/8x5/16 -inch sealed ball bearing has deep groove geometry for high speeds and supporting both radial and axial loads. The bearing is made of Bearing steel for durability and resistance to deformity under heavy loads. 3. Deep Groove Ball Bearings are one of the most widely used rolling bearings. They are used to accommodate radial and axial loads in both directions. 4. With small friction and high-limit speed, Ball Bearings are cost-effective and require little maintenance. 5. Suitable for all kinds of industrial equipment, micro motor, small rotary motor, office equipment and so on.
Deep groove ball bearing offers high quality, high speed, low noise bearings, pillow block, repair kits, steel balls and related parts, reduce maintenance costs and replacement frequency, creating more value for you.


Wheelchair front caster fork
Abrasive belt grinder
Metal band saw
Shower chair
Edger blade shaft
4" joinery spindle
Brush cutter gearbox
Old worn wheel bearings in lawn mowers
Drilling machine making drum sander accessories
Cable trays and use them as rollers
Bearings in jeep strollers
There are still many places that can be used, which can be judged according to the model and size
| MODEL | BORE SIZE | ||
| TYPE | OUT. DIAMETER | ||
| MATERIAL | RPM | ||
| CLEARANCE | DYNAMIC LOAD | ||
| WIDTH | STATIC LOAD |
Frequently asked questions
What is the return policy?
Our goal is for every customer to be totally satisfied with their purchase. If this isn’t the case, let us know and we’ll do our best to work with you to make it right.
Are any purchases final sale?
We are unable to accept returns on certain items. These will be carefully marked before purchase.
When will I get my order?
We will work quickly to ship your order as soon as possible. Once your order has shipped, you will receive an email with further information. Delivery times vary depending on your location.
How much does shipping cost?
Shipping is calculated based on your location and the items in your order. You will always know the shipping price before you purchase.