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Key No. 806

Key No. 806: 1/4 × 3/4 in disc segment (6.35 mm thick, 19.05 mm diameter), height 7.94 mm (= radius minus the 1/16 in flat offset), chord 18.78 mm; nominal values, no edge breaks

Exact dimensions. True size, no printing tolerance added. Threads are plain cylinders at the major diameter.

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Dimensions

key no.806
nominal W × B, in1/4 × 3/4
key length F, in0.740
height C max / min, in0.313 / 0.308
height D max / min, in0.303 / 0.297
flat below centre E, in1/16
shaft seat width A min – max, in0.2487 – 0.2505
shaft seat depth B, in0.1830
cutter diameter F min – max, in0.750 – 0.768
key above shaft C, in0.1250
hub seat width D, in0.2510
hub seat depth E, in0.1310
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From the full sheet

Woodruff keys, inch (ANSI B17.2): key numbers #202 to #1212, key sizes and keyseat depths: every size, notes, mating features and sources. What are the dimensions of a Woodruff key (#404, #606, #1212) and the keyseat depth in the shaft and hub (ANSI B17.2)?

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