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.
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