Wholesale 30mm 30.5mm 31mm 31.5mm 32mm 32.5mm Chrome Steel Bearing Balls for Deep Groove Ball Bearing
GQZ Bearing supplies high-quality large diameter chrome steel bearing balls manufactured from premium GCr15 bearing steel. Available in 30mm, 30.5mm, 31mm, 31.5mm, 32mm, and 32.5mm sizes, these precision steel balls offer excellent hardness, wear resistance, and dimensional accuracy for demanding industrial appliions.
Suitable for bearing manufacturing, machinery maintenance, OEM production, and industrial replacement projects.
- High-quality GCr15 bearing steel
- High hardness and wear resistance
- Excellent dimensional accuracy
- Precision ground and polished surface
- Suitable for heavy-duty appliions
- Bulk supply and OEM packaging available
| Parameter | Details |
|---|---|
| Product Name | Chrome Steel Bearing Balls |
| Material | GCr15 Bearing Steel |
| Available Sizes | 30mm, 30.5mm, 31mm, 31.5mm, 32mm, 32.5mm |
| Hardness | HRC 60–66 |
| Precision Grade | G10, G16, G20, G25, G40 |
| Surface Finish | Precision Ground & Polished |
| Standard | ISO 9001 |
| Packaging | Bulk Packaging / OEM Packaging |
| Supply Type | Wholesale & Custom Orders |
| Brand | GQZ Bearing |
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Premium Bearing Steel
Manufactured from AISI 52100 (GCr15) steel for superior durability and fatigue resistance.
Consistent QualityStrict inspection of:
- Diameter tolerance
- Roundness
- Surface roughness
- Hardness
Flexible Supply- Small quantity orders accepted
- Wholesale pricing available
- OEM packaging support
- Global export service
Fast DeliveryStable inventory and production capacity ensure reliable lead times.
GQZ Bearing also supplies:
- Small Diameter Chrome Steel Balls
- Stainless Steel Balls
- Ceramic Bearing Balls
- Carbon Steel Balls
- Bearing Rollers
- Bearing Cages
Get your high precision chrome steel bearing balls today!
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.

