Standard Keyway Size Chart

We carry a wide range of products with keyways, including bushings, keyed shaft, and roller chain sprockets.

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Keyway Size Chart in Inches

Shaft DiameterKeyway
Width x Depth
½”⅛ x 1/16
⅝”3/16 x 3/32
11/16”3/16 x 3/32
¾”3/16 x 3/32
⅞”3/16 x 3/32
15/16”¼ x ⅛
1”¼ x ⅛
1 – 1/16”¼ x ⅛
1 – ⅛”¼ x ⅛
1 – 3/16”¼ x ⅛
1 – ¼”¼ x ⅛
1 – 5/16”5/16 x 5/32
1 – ⅜”5/16 x 5/32
1 – 7/16”⅜ x 3/16
1 – ½”⅜ x 3/16
1 – 5/8”⅜ x 3/16
1 – 11/16”⅜ x 3/16
1 – ¾”⅜ x 3/16
1 – ⅞”½ x ¼
1 – 15/16”½ x ¼
2”½ x ¼
2 – 3/16”½ x ¼
2 – 7/16”⅝ x 5/16
2 – ½”⅝ x 5/16
2 – 15/16”¾ x ⅜

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