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Keyseat Design Tolerances for Electric Motors and Generator Shafts

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Keyseat Design Tolerances for Electric Motors and Generator Shaft Extensions per. ANSI B17.1

Keyseat Width Width Tolerance Depth Tolerance
Over To (Incl.)
1⁄4 +0.001 +0.000
−0.001 −0.015
1⁄4 3⁄4 +0.000 +0.000
−0.002 −0.015
3⁄4 11⁄4 +0.000 +0.000
−0.003 −0.015

All dimensions are given in inches

 

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