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Blackbearing B3 30407-2RS Bearing 30x40x7 mm

UB-30407-B3
â‚ą1,620

Durable Replacement Bearing for SRAM and Truvativ DUB Systems

Description

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.

Features
  • Perfect Fit for DUB Bottom Brackets: Designed as a direct replacement for SRAM and Truvativ DUB bearings, ensuring precise fitment and restored drivetrain smoothness.
  • Premium Chrome Steel Construction: Built with SAE52100 chrome steel balls and rings for exceptional hardness, wear resistance and long-term durability.
  • Reinforced Chrome Steel Cage: Ensures stable load distribution and consistent performance under heavy pedaling and variable riding conditions.
  • Double-Sealed Protection: Equipped with 2RS seals that prevent water, dust and debris entry while retaining internal lubrication for extended life.
  • Pre-Lubricated Smoothness: Factory-filled with premium grease for quiet, efficient rotation and long-lasting performance in all riding environments.

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

Shipping Policy

We ship across India with free shipping on orders above ₹2,000 (₹99 for orders below ₹2,000). Cash on Delivery is available up to ₹20,000, with additional COD fees based on order value. Orders typically arrive within 3–6 working days, though delays may occur.

Note: Most Shimano products may take longer to ship. View full shipping policy

Returns & Refunds

Here's a quick overview of our return and refund policy:

  • 7-Day Return Window: You can initiate a return within 7 days of receiving your product.
  • Eligibility: Items must be unused, in original condition, with all tags and packaging. Only select items like apparel (helmets, jerseys, gloves, etc.) are eligible.
  • Non-Returnable Items: Wetsuits and items discounted over 5% are not eligible for returns.
  • Compatibility Issues: Returns are not accepted for compatibility-related issues unless the product description on our website was incorrect. If you're unsure, please contact us before ordering.
  • Shipping & Processing: Return shipping is to be arranged by the customer. No pickups available.
  • Refund Options: Choose between exchange, store credit, or monetary refund (after deductions for shipping and transaction fees).
  • Order Cancellations: Only possible before the order is processed.

For full details, visit our Return & Refund Policy page.

Blackbearing B3 30407 - 2RS Bearing 30x40x7 mm | The Bike Affair
Blackbearing

Blackbearing B3 30407-2RS Bearing 30x40x7 mm

â‚ą1,620

Type

Bearing

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

  • Perfect Fit for DUB Bottom Brackets: Designed as a direct replacement for SRAM and Truvativ DUB bearings, ensuring precise fitment and restored drivetrain smoothness.
  • Premium Chrome Steel Construction: Built with SAE52100 chrome steel balls and rings for exceptional hardness, wear resistance and long-term durability.
  • Reinforced Chrome Steel Cage: Ensures stable load distribution and consistent performance under heavy pedaling and variable riding conditions.
  • Double-Sealed Protection: Equipped with 2RS seals that prevent water, dust and debris entry while retaining internal lubrication for extended life.
  • Pre-Lubricated Smoothness: Factory-filled with premium grease for quiet, efficient rotation and long-lasting performance in all riding environments.

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.

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