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Bearing: 1/16 in (13 ball)">

Cage Bearings
Pivot: 1/4"
Bearing: 1/16 in (13 ball)


Regular price $11.50

Note: The outside diameter of these bearings has decreased from 0.432" to 0.420"

Cage bearings that allow more balls to be placed around the knife pivot than standard cage bearings. Which provides more support for the blade and decreasing stress on each ball. The ceramic balls are captured in the disc but are still free floating to prevent binding.

Includes Grade 5 ceramic bearings pre-installed.

  • 22% increased blade support over caged bearings of same size
  • Improved ball pathing around pivot
  • Less pivot screw tightening required
  • CNC machined from solid phosphor bronze


ID OD Disc Ball
0.252" 0.420" 0.050" 0.0625"
6.4mm 10.668mm 1.27mm 1.587mm


Ordering details

  • One set equals two individual cage bearings

Customer Reviews

Based on 65 reviews
Corbin Kennedy
Great addition!

Improved the action on my ferrum forge stinger. Even smoother now!

Chris Davis
Three Hinderer's

I placed these in a 3.5" XM-18, 3.5" Eklipse, and a Half Track. I'm not sure how much Rick subscribes to Sal Glesser's CQI philosophy, but we're I him I'd look into working out an arrangement with the Skiff workshop to supply bearings for all the Tri-way knives leaving the Ranch. Noticeable improvement in pivot-action over the currently supplied bearings in all three knives. Would highly recommend them to anyone on the fence.

Marlon Mensalvas
Quality products

Trying to get all my knives on skiffs

Brad H
Fits XM-18 3.5” perfectly

The stock bearings are good but these are just that much better. Smooth drop shutty goodness. Definitely recommend for any hinderer xm18 tri-way owners.

Mara Sellers
Huge improvement!

Love these bearings!