Chassis Components Bushings and Mounts

BOWER BCA

CYLINDRICAL INNER RACE

$34.54

SKU: B06J MA-1209

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Bower BCA MA-1209 is a cylindrical roller bearing designed for heavy-duty applications. It features a 45 mm straight bore and is constructed from hardened alloy steel. This bearing is precision-ground to ISO Class 0 (RBEC 1) tolerance.

This open bearing, with no seals or shields, is suitable for industrial-mill configurations. Its dimensions include an inner diameter of 45 mm, an outside diameter of 55.52 mm, and an overall width of 19 mm.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandBOWER BCA
Part NumberB06J MA-1209

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy