- The top swivel design on the UB500 assures the ball remains stationary if the wire line spins.
- The swivel incorporates a sealed roller thrust bearing together with a grease fitting for easy lubrication.
- Each ball can be equipped with the new McKissick US422 Wedge & Socket which can be easily adjusted to fit various sizes of wire rope by changing the wedge (Ensure that correct wedge is used for selected wire rope size).
- All hooks used on UB500 Overhaul Balls (S320, S320N & S316A) are forged from alloy steel. The S320 and S320N hooks come complete with latches.

SS20 Corrosion Resistant Chain Block
Suitable for use in multi-immersion applications DNV GL Verification tested according to NORSOK R-002 Range from 500kg – 30.0t Patented Quad Cam Pawl System – proven reliability Phosphor Bronze Bearings Tested and certified for “fleeting”, “drifting” and...