SRAM BB30
SRAM

SRAM BB30

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OEM SRAM BB30 bearing assembly for 68/73mm press-fit shells — precision steel bearings, 30mm spindle interface and 42mm cup diameter for reliable, smooth drivetrain rotation.

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Product Details

SRAM BB30 Bearing Assembly — Overview & Technology

SRAM's BB30 bearing assembly (Model ID: BB-BB30-A1, MPN 00.6415.035.000) is a direct-replacement press-fit unit designed for BB30 frames with 68mm or 73mm shell widths. The unit uses precision steel cartridge bearings housed in a 42mm outer-diameter cup engineered to meet the tight tolerances of BB30 press-fit interfaces. The assembly delivers low-friction rolling and long life through sealed steel bearings optimized for road use. Its compact, black finish keeps weight low (0.25 lb shipping weight) while providing a durable interface between 30mm-diameter crank spindles and your frame's press-fit shell.

Key Features & Construction

Built for durability: this BB30 bearing assembly features high-quality steel cartridge bearings and a 42mm cup diameter sized specifically for BB30 shells. The steel bearing construction provides robust wear resistance and predictable performance across a wide range of riding conditions. Precision fit and finish: the unit is engineered for a snug press-fit in 68/73mm shells and to accept 30mm crank spindles. The black cups help resist corrosion and keep the interface stable; sealed bearings keep contaminants out for smoother long-term operation.

Fit, Installation & Compatibility

This bearing assembly fits frames with a true BB30 shell and shell widths of 68mm or 73mm. It accepts cranks with a 30mm spindle diameter — common on many SRAM, RaceFace and FSA 30mm spindle cranksets. The outer cup diameter is 42mm, so ensure your frame’s BB30 bores are within spec before pressing. Installation requires a proper press-fit tool and, ideally, a faced BB shell. We recommend professional install or service if you don't have the correct press tool. This unit is not a threaded bottom bracket; it will not work in BSA/English threaded shells without an adapter. For durability, use light assembly grease and press straight to avoid creaks or premature wear.

Who This BB30 Bearing Is For

If you ride a road bike with a BB30 shell and run a 30mm spindle crankset, this SRAM BB30 bearing assembly is an essential replacement or service item. It's ideal for home mechanics and shop technicians who want an OEM-quality, steel-bearing solution that balances longevity and cost. Choose this part if you need a dependable, sealed steel bearing assembly to restore smooth bottom bracket rotation, eliminate play, or replace worn bearings after years of riding — especially in drier road conditions where steel bearings offer reliable life at a sensible price.

Key Features

  • ✓ OEM SRAM BB30 bearing assembly, Model ID BB-BB30-A1
  • ✓ Fits BB30 shell widths 68mm and 73mm
  • ✓ Accepts 30mm crank spindles from SRAM, FSA, RaceFace
  • ✓ 42mm outer cup diameter for press-fit BB30 frames
  • ✓ Durable sealed steel cartridge bearings for long life
  • ✓ Black finish resists corrosion and maintains low profile
  • ✓ Lightweight replacement — 0.25 lb shipping weight

Specifications

BB Shell Type BB30
BB Shell Width 68/73mm
BB Bearing Steel
Crank Spindle Diameter 30mm
Interface BB30
Cup Diameter 42mm
Primary Color Black

Product Identifiers

Vendor Item # 00.6415.035.000
UPC 710845616174

Frequently Asked Questions

Is this BB30 bearing compatible with my crankset?

This assembly is compatible with cranksets that use a 30mm solid spindle. Verify your crank spindle diameter (30mm) and that your frame has a BB30 press-fit shell. It will not fit cranks designed for 24mm or 24/22mm axles without additional adapters.

Can I install this myself without special tools?

Proper installation requires a BB press-fit tool and ideally a shell facing tool. Pressing bearings by hand or with improvised tools risks misalignment, creaks or damage. If you don't have the right tools, ask a shop or experienced mechanic to press and face the shell.

Are these bearings sealed and serviceable?

The unit uses sealed steel cartridge bearings designed for low maintenance. While sealed bearings are not intended to be disassembled, they can be replaced as a cartridge unit when worn. Regular inspection and keeping the area clean extends service life.

Will this fit threaded bottom bracket shells?

No — this is a press-fit BB30 bearing assembly designed for BB30 shells only. To use a 30mm spindle crank in a threaded shell, you need a specific adapter or a different bottom bracket system made for threaded shells.

How long should these bearings last?

Service life depends on conditions, load and maintenance. For road riders under normal conditions, sealed steel bearings typically last from 1 to 5 years. Riding in wet, muddy or high-mileage scenarios reduces life; inspect for roughness or play and replace when performance degrades.

What should I check before buying this BB30 unit?

Confirm your frame shell type is BB30 and measure shell width (68mm or 73mm). Check your crank spindle diameter is 30mm and that the frame bore tolerance is within BB30 specs. If unsure, take measurements or consult your bike manufacturer or a mechanic.

Buying Guide

When buying a BB30 bottom bracket bearing assembly, match three critical specs: shell type (BB30), shell width (68mm or 73mm), and crank spindle diameter (30mm). Choose steel cartridge bearings for durability and predictable service intervals; ceramic options exist but cost more and have different maintenance considerations. Also consider installation — press-fit bearings require a press and ideally shell facing. If you ride in wet or gritty conditions, replace bearings more frequently and keep the interface clean to prevent premature wear. For non-BB30 frames, look for adapter kits or alternate bottom bracket standards instead.

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