1" Uniball Bearing Cup

1" Uniball Cup

4130 Chromoly Cup with Internal Retaining Ring | Fits 1" Uniball Bearings

This 1" uniball cup from RuffStuff is designed to house standard 1" spherical bearings in off-road and high-load suspension applications. It’s made from 4130 chromoly for strength, weldability, and long-term durability in demanding environments like UTV arms, trailing arms, or race truck control arms.

Each cup includes an internal retaining ring to securely hold the bearing in place. It’s a weld-on design, making it ideal for custom fabrication. Compatible with our 1" uniball bearings and a wide range of misalignment spacers (sold separately).

Key Features: 

• Part Number: R1878
• Fitment: Accepts standard 1" uniball bearings
• Material: 4130 chromoly steel
• Design: Weld-on housing for custom suspension setups
• Includes: Internal retaining ring for bearing retention
• Applications: UTV arms, race truck suspension, off-road fabrication
• Uniball and misalignment spacers sold separately
• Made in the USA
• Sold individually