L-Gibs | McMaster-Carr

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Export Control Classification Number (ECCN)

EAR99

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56 Products

Tapered Gib Keys

These keys have a tapered body that wedges in to the keyway for a more secure fit than standard machine keys. The gib head makes these keys easy to remove when parts need to be taken apart frequently, such as for maintenance or prototyping. Keys are tapered along their length. Use them to connect gears and other components with tapered keyways to shafts. Keys are made of steel.

Inch—The height of inch keys decreases by _1/8" for every 12" of length. They conform to ASME B17.1 Class 1 standards for dimensions and tolerances.

Metric—The height of metric keys decreases by 1 mm for every 100 mm of length. They meet DIN 6887, an international standard for machine keys.

		Tolerance		Head
	Lg.	Ht.	Wd.	Ht.	Lg.	End Ht.	Rate of Taper	Specs. Met	System of Measurement		Each
1018-1045 Carbon Steel







				3/16" × 3/16"

				1 1/2"	-0.002" to 0.000"	-0.002" to 0.000"	5/16"	9/32"	0.174"	1:96	ASME B17.1 Class 1	Inch	98471A117	00000


				2"	-0.002" to 0.000"	-0.002" to 0.000"	5/16"	9/32"	0.169"	1:96	ASME B17.1 Class 1	Inch	98471A118	0000
				3"	-0.002" to 0.000"	-0.002" to 0.000"	5/16"	9/32"	0.158"	1:96	ASME B17.1 Class 1	Inch	98471A120	0000




						1/4" × 1/4"

						1 1/2"	-0.002" to 0.000"	-0.002" to 0.000"	1/2"	3/8"	0.237"	1:96	ASME B17.1 Class 1	Inch	98471A132	0000


						2"	-0.002" to 0.000"	-0.002" to 0.000"	1/2"	3/8"	0.232"	1:96	ASME B17.1 Class 1	Inch	98471A133	0000
						2 1/2"	-0.002" to 0.000"	-0.002" to 0.000"	1/2"	3/8"	0.227"	1:96	ASME B17.1 Class 1	Inch	98471A134	0000
						3"	-0.002" to 0.000"	-0.002" to 0.000"	1/2"	3/8"	0.221"	1:96	ASME B17.1 Class 1	Inch	98471A135	0000
						3 1/2"	-0.002" to 0.000"	-0.002" to 0.000"	1/2"	3/8"	0.216"	1:96	ASME B17.1 Class 1	Inch	98471A136	0000
						4"	-0.002" to 0.000"	-0.002" to 0.000"	1/2"	3/8"	0.211"	1:96	ASME B17.1 Class 1	Inch	98471A137	0000




								5/16" × 5/16"

								2"	-0.002" to 0.000"	-0.002" to 0.000"	1/2"	7/16"	0.295"	1:96	ASME B17.1 Class 1	Inch	98471A142	0000


								2 1/2"	-0.002" to 0.000"	-0.002" to 0.000"	1/2"	7/16"	0.290"	1:96	ASME B17.1 Class 1	Inch	98471A143	0000
								3"	-0.002" to 0.000"	-0.002" to 0.000"	1/2"	7/16"	0.285"	1:96	ASME B17.1 Class 1	Inch	98471A144	0000
								4"	-0.002" to 0.000"	-0.002" to 0.000"	1/2"	7/16"	0.274"	1:96	ASME B17.1 Class 1	Inch	98471A146	0000




										3/8" × 3/8"

										1"	-0.002" to 0.000"	-0.002" to 0.000"	5/8"	1/2"	0.368"	1:96	ASME B17.1 Class 1	Inch	98471A169	0000


										1 1/2"	-0.002" to 0.000"	-0.002" to 0.000"	5/8"	1/2"	0.363"	1:96	ASME B17.1 Class 1	Inch	98471A171	0000
										2"	-0.002" to 0.000"	-0.002" to 0.000"	5/8"	1/2"	0.358"	1:96	ASME B17.1 Class 1	Inch	98471A172	0000
										2 1/2"	-0.002" to 0.000"	-0.002" to 0.000"	5/8"	1/2"	0.353"	1:96	ASME B17.1 Class 1	Inch	98471A173	0000
										3"	-0.002" to 0.000"	-0.002" to 0.000"	5/8"	1/2"	0.348"	1:96	ASME B17.1 Class 1	Inch	98471A174	0000
										3 1/2"	-0.002" to 0.000"	-0.002" to 0.000"	5/8"	1/2"	0.342"	1:96	ASME B17.1 Class 1	Inch	98471A175	0000
										4"	-0.002" to 0.000"	-0.002" to 0.000"	5/8"	1/2"	0.337"	1:96	ASME B17.1 Class 1	Inch	98471A176	0000
										4 1/2"	-0.002" to 0.000"	-0.002" to 0.000"	5/8"	1/2"	0.332"	1:96	ASME B17.1 Class 1	Inch	98471A177	0000
										5"	-0.002" to 0.000"	-0.002" to 0.000"	5/8"	1/2"	0.327"	1:96	ASME B17.1 Class 1	Inch	98471A178	0000




												7/16" × 7/16"

												4"	-0.002" to 0.000"	-0.002" to 0.000"	3/4"	9/16"	0.400"	1:96	ASME B17.1 Class 1	Inch	98471A192	0000


4 1/2"	-0.002" to 0.000"											-0.002" to 0.000"	3/4"	9/16"	0.395"	1:96	ASME B17.1 Class 1	Inch	98471A195	0000




		1/2" × 1/2"

		2"	-0.002" to 0.000"									-0.002" to 0.000"	3/4"	5/8"	0.484"	1:96	ASME B17.1 Class 1	Inch	98471A237	0000


		2 1/2"	-0.002" to 0.000"									-0.002" to 0.000"	3/4"	5/8"	0.479"	1:96	ASME B17.1 Class 1	Inch	98471A238	0000
		3"	-0.002" to 0.000"									-0.002" to 0.000"	3/4"	5/8"	0.474"	1:96	ASME B17.1 Class 1	Inch	98471A239	0000
		3 1/2"	-0.002" to 0.000"									-0.002" to 0.000"	3/4"	5/8"	0.469"	1:96	ASME B17.1 Class 1	Inch	98471A240	0000
		4"	-0.002" to 0.000"									-0.002" to 0.000"	3/4"	5/8"	0.464"	1:96	ASME B17.1 Class 1	Inch	98471A241	0000
		4 1/2"	-0.002" to 0.000"									-0.002" to 0.000"	3/4"	5/8"	0.458"	1:96	ASME B17.1 Class 1	Inch	98471A242	0000
		5"	-0.002" to 0.000"	-0.002" to 0.000"								3/4"	5/8"	0.453"	1:96	ASME B17.1 Class 1	Inch	98471A243	0000
		5 1/2"	-0.002" to 0.000"	-0.002" to 0.000"	3/4"							5/8"	0.448"	1:96	ASME B17.1 Class 1	Inch	98471A244	0000
		6"	-0.002" to 0.000"	-0.002" to 0.000"	3/4"							5/8"	0.443"	1:96	ASME B17.1 Class 1	Inch	98471A245	0000




				5/8" × 5/8"

				3"	-0.004" to 0.000"							-0.004" to 0.000"	1"	3/4"	0.600"	1:96	ASME B17.1 Class 1	Inch	98471A318	0000


				3 1/2"	-0.004" to 0.000"							-0.004" to 0.000"	1"	3/4"	0.595"	1:96	ASME B17.1 Class 1	Inch	98471A319	0000
				4"	-0.004" to 0.000"							-0.004" to 0.000"	1"	3/4"	0.590"	1:96	ASME B17.1 Class 1	Inch	98471A320	0000
				4 1/2"	-0.004" to 0.000"							-0.004" to 0.000"	1"	3/4"	0.585"	1:96	ASME B17.1 Class 1	Inch	98471A321	00000
				5"	-0.004" to 0.000"	-0.004" to 0.000"						1"	3/4"	0.579"	1:96	ASME B17.1 Class 1	Inch	98471A322	00000
				5 1/2"	-0.004" to 0.000"	-0.004" to 0.000"	1"					3/4"	0.574"	1:96	ASME B17.1 Class 1	Inch	98471A323	00000
				6"	-0.004" to 0.000"	-0.004" to 0.000"	1"					3/4"	0.569"	1:96	ASME B17.1 Class 1	Inch	98471A324	00000




						3/4" × 3/4"

						4"	-0.004" to 0.000"					-0.004" to 0.000"	1 1/8"	7/8"	0.716"	1:96	ASME B17.1 Class 1	Inch	98471A360	00000


						4 1/2"	-0.004" to 0.000"					-0.004" to 0.000"	1 1/8"	7/8"	0.711"	1:96	ASME B17.1 Class 1	Inch	98471A361	00000
						5"	-0.004" to 0.000"	-0.004" to 0.000"				1 1/8"	7/8"	0.706"	1:96	ASME B17.1 Class 1	Inch	98471A362	00000
						5 1/2"	-0.004" to 0.000"	-0.004" to 0.000"	1 1/8"			7/8"	0.701"	1:96	ASME B17.1 Class 1	Inch	98471A363	00000
						6"	-0.004" to 0.000"	-0.004" to 0.000"	1 1/8"			7/8"	0.695"	1:96	ASME B17.1 Class 1	Inch	98471A364	00000




								7/8" × 7/8"

								4"	-0.004" to 0.000"			-0.004" to 0.000"	1 1/4"	1"	0.842"	1:96	ASME B17.1 Class 1	Inch	98471A404	00000


								5 1/2"	-0.004" to 0.000"			-0.004" to 0.000"	1 1/4"	1"	0.827"	1:96	ASME B17.1 Class 1	Inch	98471A407	00000
								6"	-0.004" to 0.000"			-0.004" to 0.000"	1 1/4"	1"	0.822"	1:96	ASME B17.1 Class 1	Inch	98471A408	00000




										1" × 1"

										5"	-0.004" to 0.000"	-0.004" to 0.000"	1 1/2"	1 1/8"	0.958"	1:96	ASME B17.1 Class 1	Inch	98471A455	00000


										6"	-0.004" to 0.000"	-0.004" to 0.000"	1 1/2"	1 1/8"	0.948"	1:96	ASME B17.1 Class 1	Inch	98471A457	00000




										6 mm × 6 mm

										40 mm	0.000 mm to 0.100 mm	-0.030 mm to 0.000 mm	10 mm	6 mm	5.660 mm	1:100	DIN 6887	Metric	98471A201	0000




												7 mm × 8 mm

												40 mm	0.000 mm to 0.200 mm	-0.036 mm to 0.000 mm	11 mm	8 mm	6.670 mm	1:100	DIN 6887	Metric	98471A202	0000


												50 mm	0.000 mm to 0.200 mm	-0.036 mm to 0.000 mm	11 mm	8 mm	6.570 mm	1:100	DIN 6887	Metric	98471A204	0000




												8 mm × 10 mm

												60 mm	0.000 mm to 0.200 mm	-0.036 mm to 0.000 mm	12 mm	10 mm	7.480 mm	1:100	DIN 6887	Metric	98471A207	00000




														10 mm × 16 mm

														60 mm	0.000 mm to 0.200 mm	-0.043 mm to 0.000 mm	16 mm	16 mm	9.500 mm	1:100	DIN 6887	Metric	98471A225	00000




														11 mm × 18 mm

														90 mm	0.000 mm to 0.200 mm	-0.043 mm to 0.000 mm	18 mm	18 mm	10.210 mm	1:100	DIN 6887	Metric	98471A263	00000