Keyed Spacers | McMaster-Carr

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20 Products

Unthreaded Spacers for Keyed Shafts

Lock spacers in place on keyed shafts. Align the internal slot with the shaft key to prevent independent rotation. Also known as arbor spacers.

1045 Carbon Steel—Stronger than low-carbon steel alternatives to take on higher loads and withstand more impact. Best for dry environments since moisture will cause these spacers to rust.

	Notch Dp.		Each
1045 Carbon Steel







	1 1/2" OD

	1/4"	1.000"	1/4"	3/32"	000000000	00000


	3/8"	1.000"	1/4"	3/32"	000000000	0000
	1/2"	1.000"	1/4"	3/32"	000000000	0000
	3/4"	1.000"	1/4"	3/32"	000000000	0000
	1"	1.000"	1/4"	3/32"	000000000	0000




			1 3/4" OD

			1/4"	1.250"	5/16"	1/8"	000000000	0000


			3/8"	1.250"	5/16"	1/8"	000000000	0000
			1/2"	1.250"	5/16"	1/8"	000000000	0000
			3/4"	1.250"	5/16"	1/8"	000000000	0000
			1"	1.250"	5/16"	1/8"	000000000	0000




					2 1/8" OD

					1/4"	1.500"	3/8"	5/32"	000000000	0000


					3/8"	1.500"	3/8"	5/32"	000000000	0000
					1/2"	1.500"	3/8"	5/32"	000000000	0000
					3/4"	1.500"	3/8"	5/32"	000000000	00000
					1"	1.500"	3/8"	5/32"	000000000	00000




							2 3/4" OD

							1/4"	2.000"	1/2"	3/16"	000000000	0000


							3/8"	2.000"	1/2"	3/16"	000000000	00000
							1/2"	2.000"	1/2"	3/16"	000000000	00000
							3/4"	2.000"	1/2"	3/16"	000000000	00000
							1"	2.000"	1/2"	3/16"	000000000	00000