Mast Guide bearings are used for high radial and occaisonal thrust loads. They typically have a thick cross section on the outer race which performs as a wheel or tire. Several profiles are available to suit the application. They are mounted on the fork carriage and provide smooth action as the forks are raised or lowered.
Unit of Measure


N/A 1

(d) Bore Diameter

N/A 1.0000 in

(D) Outer Diameter

N/A 2.9370 in

(W2) Inner Ring

N/A .6693 in17 mm

(W1) Outer Ring

N/A 1.0000 in

(R) Radius

N/A .3300 in
(r) Fillet1 N/A .0400 in

(C) Dynamic Load

N/A 20510 N4610 lb

(Co) Static Load

N/A 11120 N2500 lb
  • 1 Bearing corner radii will clear maximum fillet radius shown