Cookies on the SKF website

SKF uses cookies on our websites to align the information shown as closely as possible to our visitors’ preferences, such as country and language choices.

Will you accept SKF cookies?

Product data

Metric seriesInch series
Dimension standardsISO 2982-1, except for the bore
diameter of sleeves for inch shafts
ANSI/ABMA Std. 8.2
TolerancesBore diameter: JS9
Width: h15
External taper
1:12 as standard
1:30 as standard in the 40 and 41 dimension series
Thread
Bore diameter < 200 mm (size ≤ 40):
metric thread in accordance with ISO 965-3, matching the included SKF lock nut
Bore diameter ≥ 200 mm (size ≥ 44):
metric trapezoidal thread in accordance with ISO 2903, matching the included SKF lock nut
Bore diameter ≤ 12 in. (size ≤ 64):
Unified Special Form ANSI/ASME B1.1
Bore diameter ≥ 12 7/16 in. (size ≥ 68):
ACME thread class 3G
Shaft tolerances
h9
Total radial run-out: IT5/2 – ISO 1101
Adapter sleeves adjust to the shaft diameter so that wider diameter tolerances can be permitted compared to the seat of a bearing with a cylindrical bore. However, the geometrical tolerances must be kept within narrow limits as they directly affect the shaft positioning and vibration.
SKF logo