Blackbearing B3 30407-2RS Bearing 30x40x7 mm
Durable Replacement Bearing for SRAM and Truvativ DUB Systems
Blackbearing B3 30407-2RS Bearing 30x40x7 mm is backordered and will ship as soon as it is back in stock.
- Free shipping over ₹2,000Delivered across India
- 100% genuineAuthorised dealer, manufacturer warranty
- Cash on deliveryOn orders up to ₹20,000
- Secure checkoutUPI, cards and net banking
Blackbearing B3 30407-2RS Bearing 30x40x7 mm is backordered and will ship as soon as it is back in stock.
The Blackbearing B3 30407-2RS Bearing 30x40x7mm is built for cyclists seeking smooth, reliable performance in demanding conditions. Designed with intermediate-grade precision, it withstands everyday riding stresses while maintaining consistent rotation and efficiency.
Perfect Fit for DUB Bottom Brackets: Specifically developed to replace original SRAM and Truvativ DUB bottom bracket bearings, the B3 30407-2RS ensures exact compatibility and a secure fit. It restores the original smoothness of your drivetrain and improves long-term reliability.
Double-Sealed for Maximum Protection: Featuring “2RS” double seals, the bearing offers strong protection against water, dust and road debris. The seals preserve internal lubrication, minimizing maintenance and extending service life even in tough riding conditions.
Smooth and Long-Lasting Performance: Pre-lubricated with high-quality grease, the B3 30407-2RS Bearing ensures low friction, quiet operation and efficient energy transfer. Designed and assembled with precision, it is a 100% compatible replacement that delivers durability, smoothness and performance for SRAM/Truvativ DUB systems.
Made from SAE52100 chrome steel, both the balls and rings provide excellent hardness and resistance to wear. The robust chrome steel cage maintains structural stability and helps distribute load evenly for smoother pedaling.
Product details
Specifications
Specifications
| Product Number | UB-30407-B3 |
|---|---|
| Seal Type | Non-Contact/Non-Contact |
| Closure Type | Double Sealed |
| Dimensions | 30 x 40 x 7 mm |
| Bearing Inner Diameter | 30 mm |
|---|---|
| Bearing Outer Diameter | 40 mm |
| Depth | 7 mm |
| Compatibility | Replacement for original SRAM/Truvativ DUB Bottom Bracket Bearings |
Features
Features
Warranty and support
Warranty and support
Covered by the manufacturer's warranty. Warranty claims go through us and we deal with the brand for you.
Questions after delivery? Ask TBA Guide or WhatsApp us.
Shipping and returns
Shipping and returns
We ship across India. Shipping is free on orders above ₹2,000 and ₹99 below that. Cash on delivery is available on orders up to ₹20,000, with a COD charge that depends on the order value. For a delivery estimate, enter your pincode in the box above the add-to-cart button: it shows the courier's own estimate for your address, not a promised date. If a parcel is held up we chase the courier until it is delivered. Full shipping policy
Returns can be started within 7 days of delivery on unused items in their original condition with all tags and packaging. Apparel, helmets, gloves and similar items are returnable; wetsuits and products discounted by more than 5% are not. Compatibility questions are not grounds for a return unless our listing was wrong, so ask us before you order if you are unsure. Return shipping is arranged by you; on an accepted return you can choose an exchange, store credit or a refund after shipping and transaction charges. Orders can be cancelled only until they are processed. Full return and refund policy

