COM-KH Series Spherical Bearings, (Ptfe Liners Available) Race - Alloy steel, heat treated, inside diameter protective coated for corrosion resistance. Ball - Alloy steel, heat treated, hard chrome plated. Ptfe Liners available upon request. Specify by adding suffix "T". Ex.: COM-8TKH. (Ptfe Lined spherical bearings have no lubrication holes or groove in race outside diameter.) COM Series Spherical Bearings, (Ptfe Liners Available) Race - Carbon steel, heat treated, inside diameter protective coated for corrosion resistance. Ball - Alloy steel, heat treated, hard chrome plated. Ptfe Liners available upon request. Specify by adding suffix "T". Ex.: COM-8TKH. (Ptfe Lined spherical bearings have no lubrication holes or groove in race outside diameter.) * Bore tolerance on these items is as follows: INCH: +.002, -.0005; METRIC: +.064, -.013
