Gear Racks for Racks | McMaster-Carr

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121 Products

Metal Spur Gear Racks

Ideal for heavy duty applications, these racks match with spur gears to convert rotary motion to linear motion.

For components to mesh correctly, they must have the same pressure angle and pitch/module.

20° Pressure Angle—The current industry standard, these 20° pressure angle gear racks have thicker, stronger teeth than 14½° pressure angle gear racks.

14 1/2° Pressure Angle—A former industry standard, 14½° pressure angle gear racks are often found in older machinery.

Steel—Steel gear racks have hard, strong, and wear-resistant teeth, although they will rust when exposed to moisture and corrosive chemicals.

Stainless Steel—Stainless steel gear racks resist rust in damp and wet environments, so they're commonly used in food-processing plants and other areas with frequent cleaning.

Brass—Brass gear racks are easy to machine, so you can add your own mounting holes and make other alterations. They won't rust when exposed to water.

Hardened—Gears racks with hardened teeth have better wear resistance than racks with teeth that are not hardened.

Tooth Spacers—Tooth spacers work with our metric gear racks to take the measuring and guesswork out of installing two racks end-to-end, so your gear rolls smoothly from one rack to the next. With the first rack fastened in place, roughly position the second rack. Place the teeth of the spacer into the teeth of the gear racks like a puzzle piece, and then adjust the second rack until all of the teeth fit together cleanly. Not for use with inch size gear racks.

	Spur Gear Racks													Tooth Spacers
	Gear Pitch	Gear Module	Lg.	Pitch Ht.	Ht.	Face Wd.	Dia.	Tooth Heat Treatment	Material	Features	No. of Mounting Holes		Each		Each
20° Pressure Angle—Rectangular
Tooth Spacers






				Steel

				20	—	2 ft.	0.45"	1/2"	1/2"	—	Not Hardened	1018 Low-Carbon Steel	—	—	5174T1	000000	———	0


				20	—	4 ft.	0.45"	1/2"	1/2"	—	Not Hardened	1215 Carbon Steel	—	—	5174T11	00000	———	0
				20	—	6 ft.	0.45"	1/2"	1/2"	—	Not Hardened	1215 Carbon Steel	—	—	5174T21	00000	———	0
				16	—	2 ft.	0.687"	3/4"	3/4"	—	Not Hardened	1018 Low-Carbon Steel	—	—	5174T2	00000	———	0
				16	—	4 ft.	0.687"	3/4"	3/4"	—	Not Hardened	1215 Carbon Steel	—	—	5174T12	00000	———	0
				16	—	6 ft.	0.687"	3/4"	3/4"	—	Not Hardened	1215 Carbon Steel	—	—	5174T22	000000	———	0
				12	—	2 ft.	0.917"	1"	1"	—	Not Hardened	1018 Low-Carbon Steel	—	—	5174T3	00000	———	0
				12	—	4 ft.	0.917"	1"	1"	—	Not Hardened	1215 Carbon Steel	—	—	5174T13	00000	———	0
				12	—	6 ft.	0.917"	1"	1"	—	Not Hardened	1215 Carbon Steel	—	—	5174T23	000000	———	0
				10	—	2 ft.	1.15"	1 1/4"	1 1/4"	—	Not Hardened	1215 Carbon Steel	—	—	5174T5	00000	———	0
				10	—	4 ft.	1.15"	1 1/4"	1 1/4"	—	Not Hardened	1215 Carbon Steel	—	—	5174T15	000000	———	0


				10	—	6 ft.	1.15"	1 1/4"	1 1/4"	—	Not Hardened	1215 Carbon Steel	—	—	5174T25	000000	———	0
				8	—	2 ft.	1.375"	1 1/2"	1 1/2"	—	Not Hardened	1018 Low-Carbon Steel	—	—	5174T4	000000	———	0
				8	—	4 ft.	1.375"	1 1/2"	1 1/2"	—	Not Hardened	1215 Carbon Steel	—	—	5174T14	000000	———	0
				8	—	6 ft.	1.375"	1 1/2"	1 1/2"	—	Not Hardened	1215 Carbon Steel	—	—	5174T24	000000	———	0
				—	0.5	100 mm	11.5 mm	12 mm	5 mm	—	Not Hardened	Black-Oxide 1045 Carbon Steel	—	—	2485N242	00000	———	0
				—	0.5	300 mm	11.5 mm	12 mm	5 mm	—	Not Hardened	Black-Oxide 1045 Carbon Steel	Machined Ends	—	2485N241	00000	———	0
				—	0.8	100 mm	11.5 mm	12.3 mm	8 mm	—	Not Hardened	Black-Oxide 1045 Carbon Steel	—	—	2485N214	00000	———	0
				—	1	100 mm	11 mm	12 mm	10 mm	—	Not Hardened	Black-Oxide 1045 Carbon Steel	—	—	2485N217	00000	———	0
				—	1	300 mm	11 mm	12 mm	10 mm	—	Not Hardened	Black-Oxide 1045 Carbon Steel	—	—	2485N218	00000	———	0
				—	1	500 mm	8.8 mm	9.8 mm	10 mm	—	Not Hardened	1045 Carbon Steel	—	—	2485N201	00000	2485N211	0000000


				—	1	1,000 mm	8.8 mm	9.8 mm	10 mm	—	Not Hardened	1045 Carbon Steel	—	—	2485N202	000000	2485N211	000000
				—	1.5	100 mm	18.5 mm	20 mm	15 mm	—	Not Hardened	Black-Oxide 1045 Carbon Steel	—	—	2485N243	00000	———	0
				—	1.5	300 mm	18.5 mm	20 mm	15 mm	—	Not Hardened	Black-Oxide 1045 Carbon Steel	—	—	2485N216	00000	———	0
				—	1.5	500 mm	13.3 mm	14.8 mm	15 mm	—	Not Hardened	1045 Carbon Steel	—	—	2485N203	000000	2485N213	000000
				—	1.5	1,000 mm	13.3 mm	14.8 mm	15 mm	—	Not Hardened	1045 Carbon Steel	—	—	2485N204	000000	2485N213	000000
				—	1.5	1,000 mm	13.5 mm	15 mm	15 mm	—	Not Hardened	Black-Oxide 1045 Carbon Steel	Machined Ends	—	2485N222	000000	———	0
				—	2	100 mm	23 mm	25 mm	20 mm	—	Not Hardened	Black-Oxide 1045 Carbon Steel	—	—	2485N219	00000	———	0
				—	2	300 mm	23 mm	25 mm	20 mm	—	Not Hardened	Black-Oxide 1045 Carbon Steel	—	—	2485N221	00000	———	0
				—	2	500 mm	17.8 mm	19.8 mm	20 mm	—	Not Hardened	1045 Carbon Steel	—	—	2485N205	000000	———	0
				—	2	1,000 mm	17.8 mm	19.8 mm	20 mm	—	Not Hardened	1045 Carbon Steel	—	—	2485N206	000000	———	0


				—	2	1,000 mm	18 mm	20 mm	20 mm	—	Not Hardened	Black-Oxide 1045 Carbon Steel	Machined Ends	—	2485N224	000000	———	0
				—	2.5	1,000 mm	22.5 mm	25 mm	25 mm	—	Not Hardened	Black-Oxide 1045 Carbon Steel	Machined Ends	—	2485N223	000000	———	0




						Stainless Steel

						64	—	11"	0.464"	1/2"	1/4"	—	Not Hardened	416 Stainless Steel	—	—	6832K73	000000	———	0


						48	—	18"	0.459"	1/2"	1/4"	—	Not Hardened	416 Stainless Steel	—	—	6832K74	000000	———	0
						32	—	18"	0.449"	1/2"	1/4"	—	Not Hardened	416 Stainless Steel	—	—	6832K75	000000	———	0
						24	—	18"	0.438"	1/2"	1/4"	—	Not Hardened	416 Stainless Steel	—	—	6832K76	000000	———	0
						—	1	500 mm	11 mm	12 mm	10 mm	—	Hardened	304 Stainless Steel	—	—	2485N232	000000	———	0
						—	1.5	500 mm	18.5 mm	20 mm	15 mm	—	Hardened	304 Stainless Steel	—	—	2485N231	000000	———	0
—						1.5	1,000 mm	18.5 mm	20 mm	15 mm	—	Hardened	304 Stainless Steel	Machined Ends	—	2485N229	000000	———	0
—	2					500 mm	23 mm	25 mm	20 mm	—	Hardened	304 Stainless Steel	—	—	2485N234	000000	———	0
—	2					1,000 mm	23 mm	25 mm	20 mm	—	Hardened	304 Stainless Steel	Machined Ends	—	2485N233	000000	———	0




		Brass

		64	—			2 ft.	0.11"	1/8"	1/8"	—	—	Brass	—	—	7854K11	000000	———	0


		48	—			2 ft.	0.104"	1/8"	1/8"	—	—	Brass	—	—	7854K12	000000	———	0
		32	—			2 ft.	0.156"	3/16"	3/16"	—	—	Brass	—	—	7854K13	000000	———	0
		24	—			2 ft.	0.208"	1/4"	1/4"	—	—	Brass	—	—	7854K15	000000	———	0
		—	0.5			300 mm	8.5 mm	9 mm	3 mm	—	—	Brass	—	—	2485N235	00000	———	0
		—	0.8			300 mm	9.2 mm	10 mm	4 mm	—	—	Brass	—	—	2485N236	00000	———	0
		—	1			300 mm	9 mm	10 mm	6 mm	—	—	Brass	—	—	2485N237	00000	———	0


		20° Pressure Angle—Round







								Steel

								20	—	2 ft.	0.625"	—	—	3/4"	Not Hardened	12L14 Carbon Steel	—	—	2932N2	00000	———	0


								16	—	2 ft.	0.838"	—	—	1"	Not Hardened	12L14 Carbon Steel	—	—	2932N1	00000	———	0
								—	1	500 mm	9 mm	—	—	10 mm	Not Hardened	Black-Oxide 1045 Carbon Steel	—	—	2485N226	000000	———	0
								—	1.5	500 mm	13.5 mm	—	—	15 mm	Not Hardened	Black-Oxide 1045 Carbon Steel	—	—	2485N225	000000	———	0
								—	2	1,000 mm	18 mm	—	—	20 mm	Not Hardened	Black-Oxide 1045 Carbon Steel	—	—	2485N227	000000	———	0


								14 1/2° Pressure Angle—Rectangular







												Steel

												32	—	2 ft.	0.156"	3/16"	3/16"	—	Not Hardened	1018 Low-Carbon Steel	—	—	6295K11	00000	———	0


												32	—	4 ft.	0.156"	3/16"	3/16"	—	Not Hardened	1215 Carbon Steel	—	—	6295K242	00000	———	0
												32	—	6 ft.	0.156"	3/16"	3/16"	—	Not Hardened	1215 Carbon Steel	—	—	6295K243	00000	———	0
				24								—	2 ft.	0.208"	1/4"	1/4"	—	Not Hardened	1018 Low-Carbon Steel	—	—	6295K12	00000	———	0
				24	—							4 ft.	0.208"	1/4"	1/4"	—	Not Hardened	1018 Low-Carbon Steel	—	12	5170T1	000000	———	0
				24	—							4 ft.	0.208"	1/4"	1/4"	—	Not Hardened	1215 Carbon Steel	—	—	6295K232	00000	———	0
				24	—							6 ft.	0.208"	1/4"	1/4"	—	Not Hardened	1215 Carbon Steel	—	—	6295K233	00000	———	0
				20	—							2 ft.	0.325"	3/8"	3/8"	—	Not Hardened	1018 Low-Carbon Steel	—	—	6295K13	00000	———	0
				20	—							4 ft.	0.325"	3/8"	3/8"	—	Not Hardened	1018 Low-Carbon Steel	—	12	5170T2	000000	———	0
				20	—							4 ft.	0.325"	3/8"	3/8"	—	Not Hardened	1215 Carbon Steel	—	—	6295K112	00000	———	0
				20	—							6 ft.	0.325"	3/8"	3/8"	—	Not Hardened	1215 Carbon Steel	—	—	6295K113	00000	———	0


				16	—							2 ft.	0.438"	1/2"	1/2"	—	Not Hardened	1018 Low-Carbon Steel	—	—	6295K14	00000	———	0
				16	—							4 ft.	0.437"	1/2"	1/2"	—	Not Hardened	1018 Low-Carbon Steel	—	12	5170T3	000000	———	0
				16	—							4 ft.	0.438"	1/2"	1/2"	—	Not Hardened	1215 Carbon Steel	—	—	6295K123	00000	———	0
				16	—							6 ft.	0.438"	1/2"	1/2"	—	Not Hardened	1215 Carbon Steel	—	—	6295K124	00000	———	0
				12	—							2 ft.	0.417"	1/2"	3/4"	—	Not Hardened	1018 Low-Carbon Steel	—	—	6295K15	00000	———	0
12				—	2 ft.							0.667"	3/4"	3/4"	—	Not Hardened	1018 Low-Carbon Steel	—	—	6295K16	00000	———	0
12	—			4 ft.	0.417"							1/2"	3/4"	—	Not Hardened	1018 Low-Carbon Steel	—	—	6295K132	00000	———	0
12	—			4 ft.	0.667"							3/4"	3/4"	—	Not Hardened	1018 Low-Carbon Steel	—	12	5170T4	000000	———	0
12	—			4 ft.	0.667"							3/4"	3/4"	—	Not Hardened	1215 Carbon Steel	—	—	6295K142	00000	———	0
12	—			6 ft.	0.417"							1/2"	3/4"	—	Not Hardened	1018 Low-Carbon Steel	—	—	6295K133	00000	———	0


12	—			6 ft.	0.667"							3/4"	3/4"	—	Not Hardened	1215 Carbon Steel	—	—	6295K143	000000	———	0
10	—			2 ft.	0.525"							5/8"	1"	—	Not Hardened	1018 Low-Carbon Steel	—	—	6295K17	00000	———	0
10	—			2 ft.	0.9"							1"	1"	—	Not Hardened	1018 Low-Carbon Steel	—	—	6295K18	00000	———	0
10	—			4 ft.	0.525"							5/8"	1"	—	Not Hardened	1215 Carbon Steel	—	—	6295K152	00000	———	0
10	—			4 ft.	0.9"							1"	1"	—	Not Hardened	1215 Carbon Steel	—	—	6295K163	000000	———	0
10	—			6 ft.	0.525"							5/8"	1"	—	Not Hardened	1215 Carbon Steel	—	—	6295K153	000000	———	0
10	—			6 ft.	0.9"							1"	1"	—	Not Hardened	1215 Carbon Steel	—	—	6295K164	000000	———	0
8	—			2 ft.	0.625"							3/4"	1 1/4"	—	Not Hardened	1018 Low-Carbon Steel	—	—	6295K19	00000	———	0
8	—			2 ft.	1.125"							1 1/4"	1 1/4"	—	Not Hardened	1215 Carbon Steel	—	—	6295K21	00000	———	0
8	—	4 ft.		0.625"	3/4"							1 1/4"	—	Not Hardened	1215 Carbon Steel	—	—	6295K172	000000	———	0


8	—	4 ft.	1.125"	1 1/4"	1 1/4"							—	Not Hardened	1215 Carbon Steel	—	—	6295K182	000000	———	0
8	—	6 ft.	0.625"	3/4"	1 1/4"							—	Not Hardened	1215 Carbon Steel	—	—	6295K173	000000	———	0
8	—	6 ft.	1.125"	1 1/4"	1 1/4"	—						Not Hardened	1215 Carbon Steel	—	—	6295K183	000000	———	0
6	—	2 ft.	0.833"	1"	1 1/2"	—	Not Hardened					1018 Low-Carbon Steel	—	—	6295K22	00000	———	0
6	—	2 ft.	1.333"	1 1/2"	1 1/2"	—	Not Hardened					1018 Low-Carbon Steel	—	—	6295K23	000000	———	0
6	—	4 ft.	0.833"	1"	1 1/2"	—	Not Hardened					1215 Carbon Steel	—	—	6295K192	000000	———	0
6	—	4 ft.	1.333"	1 1/2"	1 1/2"	—	Not Hardened					1215 Carbon Steel	—	—	6295K212	000000	———	0
6	—	6 ft.	0.833"	1"	1 1/2"	—	Not Hardened					1215 Carbon Steel	—	—	6295K193	000000	———	0
6	—	6 ft.	1.333"	1 1/2"	1 1/2"	—	Not Hardened					1215 Carbon Steel	—	—	6295K213	000000	———	0

Plastic Spur Gear Racks

Lightweight and resistant to corrosion and chemicals, these racks match with spur gears to convert rotary motion to linear motion in light duty applications.

For components to mesh correctly, they must have the same pressure angle and pitch/module.

20° Pressure Angle—The current industry standard, these 20° pressure angle gear racks have thicker, stronger teeth than 14½° pressure angle gear racks.

14 1/2° Pressure Angle—A former industry standard, 14½° pressure angle gear racks are often found in older machinery.

Acetal—Acetal gear racks absorb less water than nylon racks, so they’re less likely to swell.

Nylon—Nylon gear racks are wear resistant, but will swell and weaken over time when wet.

Machined—Machined gear racks may be slightly bowed but will straighten out when installed.

	Pitch Ht.	Ht.	Face Wd.	Fabrication	Color		Each
20° Pressure Angle—Rectangular







	Acetal

	48	—	1 ft.	0.109"	1/8"	1/8"	Molded	Gray	2662N54	00000


	32	—	1 ft.	0.156"	3/16"	3/16"	Molded	Gray	2662N53	0000
	24	—	1 ft.	0.203"	1/4"	1/4"	Molded	Gray	2662N52	0000
	16	—	1 ft.	0.25"	5/16"	5/16"	Molded	Gray	2662N51	0000
	—	0.5	250 mm	5.9 mm	6.3 mm	4 mm	Molded	Gray	2662N55	0000
	—	0.8	250 mm	6.4 mm	7.3 mm	5 mm	Molded	Gray	2662N56	0000
	—	1	315 mm	7.9 mm	10 mm	10 mm	Molded	Gray	2662N57	0000
	—	1	500 mm	11 mm	12 mm	10 mm	Machined	White	2662N63	000000
	—	1.5	500 mm	18.5 mm	20 mm	15 mm	Machined	White	2662N62	000000
	—	2	500 mm	23 mm	25 mm	20 mm	Machined	White	2662N65	000000




			Nylon

			—	1	500 mm	11 mm	12 mm	10 mm	Machined	Blue	2662N67	000000


			—	2	500 mm	23 mm	25 mm	20 mm	Machined	Blue	2662N68	000000
			—	2	1,000 mm	23 mm	25 mm	20 mm	Machined	Blue	2662N71	000000


			14 1/2° Pressure Angle—Rectangular







							Nylon

							48	—	1 ft.	0.109"	1/8"	1/8"	Molded	White	57655K61	0000


							32	—	1 ft.	0.156"	3/16"	3/16"	Molded	White	57655K62	0000
							24	—	1 ft.	0.203"	1/4"	1/4"	Molded	White	57655K63	00000
							20	—	4 ft.	0.325"	3/8"	3/8"	Machined	Green	60435K88	000000
							16	—	1 ft.	0.25"	5/16"	5/16"	Molded	White	57655K64	00000
							16	—	4 ft.	0.438"	1/2"	1/2"	Machined	Green	60435K89	000000
							12	—	4 ft.	0.667"	3/4"	3/4"	Machined	Green	60435K82	000000
							10	—	4 ft.	0.9"	1"	1"	Machined	Green	60435K84	000000

High-Power Metal Helical Gear Racks


Parallel Gear on Gear Rack (Sold Separately)

Pair these racks with parallel helical gears that have an opposite tooth direction to convert rotary motion to linear motion.

									Left-Hand Teeth		Right-Hand Teeth
	Gear Module	Lg., mm	Helix Angle	Pitch Ht., mm	Ht., mm	Face Wd., mm	Material	Tooth Heat Treatment		Each		Each
20° Pressure Angle



		1	100	21 1/2°	14	15	8	4140 Alloy Steel	Not Hardened	3598N263	0000000	3598N264	0000000


		1	500	21 1/2°	14	15	8	4140 Alloy Steel	Not Hardened	3598N272	000000	3598N273	000000