Bronze Gears | McMaster-Carr

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186 Products

Metal Worms and Worm Gears

Worm and

Gear Sold

Separately

Worm gears use screw threads to make large reductions to shaft speed while transmitting motion at a right angle. They transmit motion from worm to gear and cannot be reversed. For gears and worms to mesh correctly, they must have the same pressure angle, pitch/module, number of thread starts, and thread direction. These worms are compatible with plastic worm gears.

Gears

Bronze—Bronze gears have low friction and dissipate heat better than cast iron gears to provide a long service life for both the gear and the worm. They’re also more corrosion resistant than cast iron gears.

Speed Ratio—Speed ratio is the ratio by which output shaft speed is reduced. As speed decreases, torque increases.

												Hub
	Gear Module	Gear Pitch	Speed Ratio	No. of Teeth	Pressure Angle	Gear Pitch Dia.	For No. of Thread Starts	OD	Face Wd.	Overall Wd.	For Shaft Dia.	Dia.	Wd.	Material	For Thread Direction	Tooth Heat Treatment	Tooth Mechanical Finish		Each
Round Bore—Bronze



		—	12	20:1	20	14 1/2°	1.67"	1	1.87"	1/2"	1"	1/2"	1.25"	0.5"	Bronze	Right Hand	Not Hardened	Unfinished	57545K231	0000000


		—	12	30:1	30	14 1/2°	2 1/2"	1	2.7"	1/2"	1.12"	1/2"	1.19"	0.62"	Bronze	Right Hand	Not Hardened	Unfinished	57545K232	000000
		—	12	40:1	40	14 1/2°	3.33"	1	3.54"	1/2"	1.12"	5/8"	1.44"	0.62"	Bronze	Right Hand	Not Hardened	Unfinished	57545K233	000000
		—	10	20:1	20	14 1/2°	2"	1	2.24"	5/8"	1.245"	1/2"	1.25"	0.62"	Bronze	Right Hand	Not Hardened	Unfinished	57545K234	000000
		—	10	30:1	30	14 1/2°	3"	1	3.24"	5/8"	1.245"	5/8"	1.69"	0.62"	Bronze	Right Hand	Not Hardened	Unfinished	57545K235	000000
		—	10	40:1	40	14 1/2°	4"	1	4.24"	5/8"	1.245"	5/8"	1.69"	0.62"	Bronze	Right Hand	Not Hardened	Unfinished	57545K236	000000
		—	10	50:1	50	14 1/2°	5"	1	5.24"	5/8"	1.375"	3/4"	1.94"	0.75"	Bronze	Right Hand	Not Hardened	Unfinished	57545K237	000000
		0.5	—	10:1	20	20°	10 mm	2	11 mm	5 mm	12 mm	4 mm	9 mm	7 mm	Bronze	Right Hand	Not Hardened	Unfinished	57545K735	00000
		0.5	—	15:1	30	20°	15 mm	2	16 mm	5 mm	12 mm	4 mm	12 mm	7 mm	Bronze	Right Hand	Not Hardened	Unfinished	57545K737	00000
		0.5	—	20:1	20	20°	10 mm	1	11 mm	5 mm	12 mm	4 mm	9 mm	7 mm	Bronze	Right Hand	Not Hardened	Unfinished	57545K734	00000
		0.5	—	30:1	30	20°	15 mm	1	16 mm	5 mm	12 mm	4 mm	12 mm	7 mm	Bronze	Right Hand	Not Hardened	Unfinished	57545K736	00000


		0.5	—	40:1	40	20°	20 mm	1	21 mm	5 mm	12 mm	5 mm	15 mm	7 mm	Bronze	Right Hand	Not Hardened	Unfinished	57545K738	00000
		0.5	—	50:1	50	20°	25 mm	1	26 mm	5 mm	12 mm	5 mm	20 mm	7 mm	Bronze	Right Hand	Not Hardened	Unfinished	57545K739	00000
		0.5	—	60:1	60	20°	30 mm	1	31 mm	5 mm	12 mm	5 mm	25 mm	7 mm	Bronze	Right Hand	Not Hardened	Unfinished	57545K741	00000
		0.8	—	10:1	20	20°	16 mm	2	17.6 mm	9 mm	18 mm	5 mm	12 mm	9 mm	Bronze	Right Hand	Not Hardened	Unfinished	57545K743	00000
		0.8	—	20:1	20	20°	16 mm	1	17.6 mm	9 mm	18 mm	5 mm	12 mm	9 mm	Bronze	Right Hand	Not Hardened	Unfinished	57545K742	00000
		0.8	—	30:1	30	20°	24 mm	1	25.6 mm	9 mm	18 mm	5 mm	18 mm	9 mm	Bronze	Right Hand	Not Hardened	Unfinished	57545K744	00000
		0.8	—	40:1	40	20°	32 mm	1	33.6 mm	9 mm	18 mm	6 mm	20 mm	9 mm	Bronze	Right Hand	Not Hardened	Unfinished	57545K746	00000
		1	—	10:1	20	20°	20 mm	2	23 mm	10 mm	20 mm	6 mm	16 mm	10 mm	Bronze	Right Hand	Not Hardened	Unfinished	57545K764	00000
		1	—	30:1	30	20°	30 mm	1	33 mm	10 mm	20 mm	6 mm	20 mm	10 mm	Bronze	Right Hand	Not Hardened	Unfinished	57545K765	00000
		1.25	—	20:1	20	20°	25 mm	1	28.75 mm	10 mm	20 mm	6 mm	20 mm	10 mm	Bronze	Right Hand	Not Hardened	Unfinished	57545K749	00000


		1.5	—	10:1	20	20°	30 mm	2	34.5 mm	12 mm	22 mm	8 mm	22 mm	10 mm	Bronze	Right Hand	Not Hardened	Unfinished	57545K757	00000
		1.5	—	15:1	30	20°	45 mm	2	49.5 mm	12 mm	22 mm	10 mm	30 mm	10 mm	Bronze	Right Hand	Not Hardened	Unfinished	57545K759	00000
		1.5	—	20:1	20	20°	30 mm	1	34.5 mm	12 mm	22 mm	8 mm	22 mm	10 mm	Bronze	Right Hand	Not Hardened	Unfinished	57545K756	00000
		1.5	—	30:1	30	20°	45 mm	1	49.5 mm	12 mm	22 mm	10 mm	30 mm	10 mm	Bronze	Right Hand	Not Hardened	Unfinished	57545K758	00000

Right-Angle Speed Reducers

Reduce shaft speed and increase torque while transmitting motion at a 90° angle. Speed reducers require lubrication (not included). Connect to a motor using a shaft coupling (not included).

With 1 Output Shaft


With Left-Side Output	With Right-Side Output


Reducer with Right-Side Output	Reducer with Left-Side Output

Radial Load Capacity—Radial loads are loads that are perpendicular to the shaft. They’re commonly caused by components attached to shaft, such as pulleys and sprockets.

Mounts—Gear Box Mounts (sold separately) allow you to mount speed reducers to machinery or other surfaces where fastening into the bottom of the speed reducer is not possible.

	Speed Reducers																Mounts
	Max. Output		Max. Input		Input Shaft		Output Shaft			Overall
	Torque	Speed, rpm	Speed, rpm	Power, hp	Dia.	Lg.	Dia.	Lg.	Shaft Ctr.-to-Ctr. Distance	Lg.	Wd.	Ht.	Radial Load Cap., lb.	Choose an Output Shaft Location		Each		Each







				5:1 Speed Ratio

				113 in·lbf @ 1,750 rpm	900	4,500	0.69	3/8"	0.81"	1/2"	1.19"	1"	4 1/2"	4 9/16"	3 5/8"	150	Left Side, Right Side	5887K11	0000000	5887K91	000000


				214 in·lbf @ 1,750 rpm	900	4,500	1.39	1/2"	1.31"	5/8"	2"	1.33"	6 1/16"	6 1/16"	4 11/16"	200	Left Side, Right Side	5887K613	000000	5887K92	00000
				432 in·lbf @ 1,750 rpm	720	3,600	2.55	5/8"	1.56"	7/8"	1.78"	1.75"	7 5/8"	6 7/8"	5 3/4"	500	Left Side, Right Side	5887K13	000000	5887K93	00000




						10:1 Speed Ratio

						138 in·lbf @ 1,750 rpm	450	4,500	0.44	3/8"	0.81"	1/2"	1.19"	1"	4 1/2"	4 9/16"	3 5/8"	150	Left Side, Right Side	5887K17	000000	5887K91	00000


						281 in·lbf @ 1,750 rpm	450	4,500	0.86	1/2"	1.31"	5/8"	2"	1.33"	6 1/16"	6 1/16"	4 11/16"	200	Left Side, Right Side	5887K18	000000	5887K92	00000
						536 in·lbf @ 1,750 rpm	360	3,600	1.61	5/8"	1.56"	7/8"	1.78"	1.75"	7 5/8"	6 7/8"	5 3/4"	500	Left Side, Right Side	5887K19	000000	5887K93	00000




								20:1 Speed Ratio

								149 in·lbf @ 1,750 rpm	225	4,500	0.27	3/8"	0.81"	1/2"	1.19"	1"	4 1/2"	4 9/16"	3 5/8"	150	Left Side, Right Side	5887K24	000000	5887K91	00000


								308 in·lbf @ 1,750 rpm	225	4,500	0.52	1/2"	1.31"	5/8"	2"	1.33"	6 1/16"	6 1/16"	4 11/16"	200	Left Side, Right Side	5887K25	000000	5887K92	00000
								590 in·lbf @ 1,750 rpm	180	3,600	0.97	5/8"	1.56"	7/8"	1.78"	1.75"	7 5/8"	6 7/8"	5 3/4"	500	Left Side, Right Side	5887K26	000000	5887K93	00000
								892 in·lbf @ 1,750 rpm	180	3,600	1.4	5/8"	1.56"	1"	2.09"	2.06"	8 1/8"	7 5/16"	6 3/8"	700	Left Side, Right Side	5887K27	00000000	5887K94	00000




										30:1 Speed Ratio

										311 in·lbf @ 1,750 rpm	150	4,500	0.39	1/2"	1.31"	5/8"	2"	1.33"	6 1/16"	6 1/16"	4 11/16"	200	Left Side, Right Side	5887K32	000000	5887K92	00000


										573 in·lbf @ 1,750 rpm	120	3,600	0.65	5/8"	1.56"	7/8"	1.78"	1.75"	7 5/8"	6 7/8"	5 3/4"	500	Left Side, Right Side	5887K33	000000	5887K93	00000
										871 in·lbf @ 1,750 rpm	120	3,600	0.99	5/8"	1.56"	1"	2.09"	2.06"	8 1/8"	7 5/16"	6 3/8"	700	Left Side, Right Side	5887K34	00000000	5887K94	00000




												40:1 Speed Ratio

												307 in·lbf @ 1,750 rpm	112	4,500	0.31	1/2"	1.31"	5/8"	2"	1.33"	6 1/16"	6 1/16"	4 11/16"	200	Left Side, Right Side	5887K38	000000	5887K92	00000


												609 in·lbf @ 1,750 rpm	90	3,600	0.57	5/8"	1.56"	7/8"	1.78"	1.75"	7 5/8"	6 7/8"	5 3/4"	500	Left Side, Right Side	5887K39	000000	5887K93	00000
												876 in·lbf @ 1,750 rpm	90	3,600	0.81	5/8"	1.56"	1"	2.09"	2.06"	8 1/8"	7 5/16"	6 3/8"	700	Left Side, Right Side	5887K41	00000000	5887K94	00000
												1,206 in·lbf @ 1,750 rpm	90	3,600	1.08	3/4"	2"	1 1/8"	2.38"	2.38"	9"	7 13/16"	7"	900	Left Side, Right Side	5887K42	00000000	5887K95	00000




50:1 Speed Ratio

297 in·lbf @ 1,750 rpm	90													4,500	0.25	1/2"	1.31"	5/8"	2"	1.33"	6 1/16"	6 1/16"	4 11/16"	200	Left Side, Right Side	5887K911	000000	———	0


1,484 in·lbf @ 1,750 rpm	72													3,600	1.08	3/4"	2"	1 1/8"	2.62"	2.62"	10"	8 1/2"	8"	1,000	Left Side, Right Side	5887K921	00000000	———	0




		60:1 Speed Ratio

		271 in·lbf @ 1,750 rpm	75											4,500	0.22	1/2"	1.31"	5/8"	2"	1.33"	6 1/16"	6 1/16"	4 11/16"	200	Left Side, Right Side	5887K45	000000	5887K92	00000


		527 in·lbf @ 1,750 rpm	60											3,600	0.35	5/8"	1.56"	7/8"	1.78"	1.75"	7 5/8"	6 7/8"	5 3/4"	500	Left Side, Right Side	5887K46	000000	5887K93	00000
		826 in·lbf @ 1,750 rpm	60											3,600	0.55	5/8"	1.56"	1"	2.09"	2.06"	8 1/8"	7 5/16"	6 3/8"	700	Left Side, Right Side	5887K47	00000000	5887K94	00000
		1,128 in·lbf @ 1,750 rpm	60											3,600	0.73	3/4"	2"	1 1/8"	2.38"	2.38"	9"	7 13/16"	7"	900	Left Side, Right Side	5887K48	00000000	5887K95	00000
		1,385 in·lbf @ 1,750 rpm	60	3,600										0.89	3/4"	2"	1 1/8"	2.63"	2.62"	10"	8 1/2"	8"	1,000	Left Side, Right Side	5887K49	00000000	5887K96	00000




				80:1 Speed Ratio

				222 in·lbf @ 1,750 rpm	56									4,500	0.15	1/2"	1.31"	5/8"	2"	1.33"	6 1/16"	6 1/16"	4 11/16"	200	Left Side, Right Side	5887K14	000000	5887K92	00000


				387 in·lbf @ 1,750 rpm	45									3,600	0.23	5/8"	1.56"	7/8"	1.78"	1.75"	7 5/8"	6 7/8"	5 3/4"	500	Left Side, Right Side	5887K16	000000	5887K93	00000
				634 in·lbf @ 1,750 rpm	45									3,600	0.38	5/8"	1.56"	1"	2.09"	2.06"	8 1/8"	7 5/16"	6 3/8"	700	Left Side, Right Side	5887K23	00000000	5887K94	00000
				1,069 in·lbf @ 1,750 rpm	45	3,600								0.76	3/4"	2"	1 1/8"	2.63"	2.62"	10"	8 1/2"	8"	1,000	Left Side, Right Side	5887K63	00000000	5887K96	00000

Oil

		Each
1 qt. Lubricant	5887K1	000000

Idler Sprockets

Maintain constant tension on your roller chain to reduce wear and vibration. These sprockets press against the chain to take up slack and rotate freely on bearings to keep the chain moving smoothly. They’re often paired with roller chain tensioners.

For Single Strand

Sleeve Bearing—With no moving parts, sleeve bearings are best for dirty environments. They generate more friction than ball bearings, making them less suitable for high-speed applications. Made of porous bronze embedded with oil, all are self-lubricating.

Needle-Roller Bearing—These bearings rotate smoothly under your heaviest loads.

Steel—Steel is strong, but best for dry environments since moisture will cause it to rust.

Wear-Resistant Steel with Hardened Teeth—These sprockets have teeth that are hardened from the tip to the base so they withstand chain contact and wear evenly. That means fewer broken teeth and a longer lifespan than sprockets with unhardened or tip-hardened teeth. Steel is best for dry environments since moisture will cause it to rust.

	For Roller Chain
	Trade No.	Std.	Pitch	No. of Teeth	For Shaft Dia.	OD	Bearing Material		Each
Sleeve Bearing







				Steel

				35	ANSI	3/8"	15	1/2"	2"	Bronze	6663K81	000000


				35	ANSI	3/8"	21	7/8"	2 11/16"	Bronze	6663K82	00000
				40	ANSI	1/2"	13	1/2"	2 5/16"	Bronze	6663K85	00000
				40	ANSI	1/2"	19	7/8"	3 5/16"	Bronze	6663K86	00000
				50	ANSI	5/8"	13	1/2"	2 15/16"	Bronze	6663K87	00000
				50	ANSI	5/8"	17	7/8"	3 3/4"	Bronze	6663K88	00000
				60	ANSI	3/4"	15	7/8"	4"	Bronze	6663K89	00000
				60	ANSI	3/4"	17	1 1/8"	4 7/16"	Bronze	6663K91	000000
				80	ANSI	1"	15	1 1/8"	5 5/16"	Bronze	6663K92	000000




						Wear-Resistant Steel with Hardened Teeth

						35	ANSI	3/8"	20	1/2"	2 9/16"	Bronze	6663K12	00000


						40, 41	ANSI	1/2"	15	1/2"	2 5/8"	Bronze	6663K13	00000
						50	ANSI	5/8"	15	1/2"	3 5/16"	Bronze	6663K14	00000
						60	ANSI	3/4"	14	1/2"	3 3/4"	Bronze	6663K15	00000


						Needle-Roller Bearing







										Wear-Resistant Steel with Hardened Teeth

										25	ANSI	1/4"	19	1/2"	1 5/8"	Bronze	6663K71	00000


										35	ANSI	3/8"	13	1/2"	1 3/4"	Bronze	6663K72	00000
										35	ANSI	3/8"	19	1"	2 1/2"	Bronze	6663K73	00000
										40	ANSI	1/2"	19	1"	3 5/16"	Bronze	6663K75	00000
										41	ANSI	1/2"	19	1"	3 5/16"	Bronze	6663K74	00000
										50	ANSI	5/8"	17	1"	3 3/4"	Bronze	6663K76	000000
										60	ANSI	3/4"	17	1"	4 7/16"	Bronze	6663K77	000000
										80	ANSI	1"	13	1"	4 11/16"	Bronze	6663K78	000000
										100	ANSI	1 1/4"	11	1 1/2"	5"	Bronze	6663K207	000000
										120	ANSI	1 1/2"	11	1 1/2"	6"	Bronze	6663K208	000000
										140	ANSI	1 3/4"	11	1 1/2"	7"	Bronze	6663K209	000000


										160	ANSI	2"	9	1 1/2"	6 11/16"	Bronze	6663K211	000000

Flexible-Mount Right-Angle Speed Reducers for Face-Mount AC Motors

With output shaft openings on both sides, these speed reducers adapt to fit multiple configurations. Use them to transmit motion at a 90° angle while reducing speed and increasing torque. All are permanently lubricated to save maintenance time and effort.

Plug-in shafts (sold separately) convert output drives from female to male. Shafts for two outputs are long enough to extend from both sides of the speed reducer.

Radial Load Capacity—Radial loads are loads that are perpendicular to the shaft. They’re commonly caused by components attached to shaft, such as pulleys and sprockets.

	Speed Reducers													Single Output Plug-In Shafts		Double Output Plug-In Shafts
	Max. Output		Max. Input					Overall
	Torque	Speed, rpm	Speed, rpm	Power, hp	For Input Shaft Dia.	For Output Shaft Dia.	Shaft Ctr.-to-Ctr. Distance	Lg.	Wd.	Ht.	Radial Load Cap., lb.		Each		Each		Each
For NEMA 56C Motor Frames







				5:1 Speed Ratio

				303 in·lbf @ 1,750 rpm	720	3,500	1.89	5/8"	3/4"	1.57"	5"	6 1/2"	6 3/4"	240	6771K411	0000000	6771K51	000000	6771K57	000000


				572 in·lbf @ 1,750 rpm	720	3,500	3.57	5/8"	1"	1.97"	6"	6 1/2"	7 1/2"	329	6771K412	000000	6771K52	00000	6771K58	00000




						7.5:1 Speed Ratio

						353 in·lbf @ 1,750 rpm	480	3,500	1.5	5/8"	3/4"	1.57"	5"	6 1/2"	6 3/4"	274	6771K413	000000	6771K51	00000	6771K57	00000


						647 in·lbf @ 1,750 rpm	480	3,500	2.72	5/8"	1"	1.97"	6"	6 1/2"	7 1/2"	377	6771K414	000000	6771K52	00000	6771K58	00000




								10:1 Speed Ratio

								370 in·lbf @ 1,750 rpm	360	3,500	1.21	5/8"	3/4"	1.57"	5"	6 1/2"	6 3/4"	302	6771K11	000000	6771K51	00000	6771K57	00000


								664 in·lbf @ 1,750 rpm	360	3,500	2.12	5/8"	1"	1.97"	6"	6 1/2"	7 1/2"	414	6771K12	000000	6771K52	00000	6771K58	00000




										15:1 Speed Ratio

										370 in·lbf @ 1,750 rpm	240	3,500	0.83	5/8"	3/4"	1.57"	5"	6 1/2"	6 3/4"	346	6771K415	000000	6771K51	00000	6771K57	00000


										681 in·lbf @ 1,750 rpm	240	3,500	1.52	5/8"	1"	1.97"	6"	6 1/2"	7 1/2"	475	6771K416	000000	6771K52	00000	6771K58	00000
										1,236 in·lbf @ 1,750 rpm	240	3,500	2.7	5/8"	1 1/8"	2.48"	7 3/4"	6 1/2"	8 1/2"	620	6771K417	000000	6771K53	00000	6771K59	00000
										1,900 in·lbf @ 1,750 rpm	240	3,500	4.07	5/8"	1 1/4"	2.95"	9"	6 1/2"	9 1/2"	732	6771K418	000000	6771K54	00000	6771K61	00000




												20:1 Speed Ratio

												361 in·lbf @ 1,750 rpm	180	3,500	0.64	5/8"	3/4"	1.57"	5"	6 1/2"	6 3/4"	380	6771K13	000000	6771K51	00000	6771K57	00000


												656 in·lbf @ 1,750 rpm	180	3,500	1.14	5/8"	1"	1.97"	6"	6 1/2"	7 1/2"	522	6771K14	000000	6771K52	00000	6771K58	00000
												1,225 in·lbf @ 1,750 rpm	180	3,500	2.06	5/8"	1 1/8"	2.48"	7 3/4"	6 1/2"	8 1/2"	683	6771K15	000000	6771K53	00000	6771K59	00000




														25:1 Speed Ratio

														328 in·lbf @ 1,750 rpm	144	3,500	0.48	5/8"	3/4"	1.57"	5"	6 1/2"	6 3/4"	410	6771K419	000000	6771K51	00000	6771K57	00000


597 in·lbf @ 1,750 rpm	144													3,500	0.86	5/8"	1"	1.97"	6"	6 1/2"	7 1/2"	563	6771K421	000000	6771K52	00000	6771K58	00000
1,124 in·lbf @ 1,750 rpm	144													3,500	1.56	5/8"	1 1/8"	2.48"	7 3/4"	6 1/2"	8 1/2"	736	6771K422	000000	6771K53	00000	6771K59	00000
1,784 in·lbf @ 1,750 rpm	144													3,500	2.43	5/8"	1 1/4"	2.95"	9"	6 1/2"	9 1/2"	868	6771K423	000000	6771K54	00000	6771K61	00000




		30:1 Speed Ratio

		403 in·lbf @ 1,750 rpm	120											3,500	0.53	5/8"	3/4"	1.57"	5"	6 1/2"	6 3/4"	435	6771K16	000000	6771K51	00000	6771K57	00000


		740 in·lbf @ 1,750 rpm	120											3,500	0.94	5/8"	1"	1.97"	6"	6 1/2"	7 1/2"	598	6771K17	000000	6771K52	00000	6771K58	00000
		1,345 in·lbf @ 1,750 rpm	120											3,500	1.64	5/8"	1 1/8"	2.48"	7 3/4"	6 1/2"	8 1/2"	782	6771K18	000000	6771K53	00000	6771K59	00000




				40:1 Speed Ratio

				378 in·lbf @ 1,750 rpm	90									3,500	0.4	5/8"	3/4"	1.57"	5"	6 1/2"	6 3/4"	479	6771K19	000000	6771K51	00000	6771K57	00000


				647 in·lbf @ 1,750 rpm	90									3,500	0.7	5/8"	1"	1.97"	6"	6 1/2"	7 1/2"	658	6771K21	000000	6771K52	00000	6771K58	00000
				1,261 in·lbf @ 1,750 rpm	90									3,500	1.21	5/8"	1 1/8"	2.48"	7 3/4"	6 1/2"	8 1/2"	860	6771K22	000000	6771K53	00000	6771K59	00000
				2,029 in·lbf @ 1,750 rpm	90									3,500	1.9	5/8"	1 1/4"	2.95"	9"	6 1/2"	9 1/2"	1,015	6771K424	000000	6771K54	00000	6771K61	00000




						50:1 Speed Ratio

						353 in·lbf @ 1,750 rpm	72							3,500	0.31	5/8"	3/4"	1.57"	5"	6 1/2"	6 3/4"	517	6771K425	000000	6771K51	00000	6771K57	00000


						647 in·lbf @ 1,750 rpm	72							3,500	0.71	5/8"	1"	1.97"	6"	6 1/2"	7 1/2"	709	6771K37	000000	6771K52	00000	6771K58	00000
						1,208 in·lbf @ 1,750 rpm	72							3,500	0.99	5/8"	1 1/8"	2.48"	7 3/4"	6 1/2"	8 1/2"	927	6771K426	000000	6771K53	00000	6771K59	00000
						1,881 in·lbf @ 1,750 rpm	72	3,500						1.47	5/8"	1 1/4"	2.95"	9"	6 1/2"	9 1/2"	1,094	6771K427	000000	6771K54	00000	6771K61	00000




								60:1 Speed Ratio

								319 in·lbf @ 1,750 rpm	60					3,500	0.26	5/8"	3/4"	1.57"	5"	6 1/2"	6 3/4"	549	6771K23	000000	6771K51	00000	6771K57	00000


								605 in·lbf @ 1,750 rpm	60					3,500	0.47	5/8"	1"	1.97"	6"	6 1/2"	7 1/2"	753	6771K24	000000	6771K52	00000	6771K58	00000
								1,135 in·lbf @ 1,750 rpm	60					3,500	0.82	5/8"	1 1/8"	2.48"	7 3/4"	6 1/2"	8 1/2"	985	6771K25	000000	6771K53	00000	6771K59	00000
								1,778 in·lbf @ 1,750 rpm	60					3,500	1.22	5/8"	1 1/4"	2.95"	9"	6 1/2"	9 1/2"	1,162	6771K26	000000	6771K54	00000	6771K61	00000




										80:1 Speed Ratio

										277 in·lbf @ 1,750 rpm	45			3,500	0.18	5/8"	3/4"	1.57"	5"	6 1/2"	6 3/4"	604	6771K428	000000	6771K51	00000	6771K57	00000


										546 in·lbf @ 1,750 rpm	45			3,500	0.35	5/8"	1"	1.97"	6"	6 1/2"	7 1/2"	829	6771K429	000000	6771K52	00000	6771K58	00000
										1,632 in·lbf @ 1,750 rpm	45			3,500	0.91	5/8"	1 1/4"	2.95"	9"	6 1/2"	9 1/2"	1,279	6771K432	000000	6771K54	00000	6771K61	00000
										2,397 in·lbf @ 1,750 rpm	45			3,500	1.27	5/8"	1 3/8"	3.54"	10 1/2"	6 1/2"	10 3/4"	1,416	6771K433	000000	6771K439	00000	6771K441	00000




												100:1 Speed Ratio

												244 in·lbf @ 1,750 rpm	36	3,500	0.14	5/8"	3/4"	1.57"	5"	6 1/2"	6 3/4"	651	6771K434	000000	6771K51	00000	6771K57	00000


462 in·lbf @ 1,750 rpm	36											3,500	0.26	5/8"	1"	1.97"	6"	6 1/2"	7 1/2"	893	6771K435	000000	6771K52	00000	6771K58	00000
992 in·lbf @ 1,750 rpm	36											3,500	0.51	5/8"	1 1/8"	2.48"	7 3/4"	6 1/2"	8 1/2"	1,168	6771K436	000000	6771K53	00000	6771K59	00000
1,517 in·lbf @ 1,750 rpm	36											3,500	0.74	5/8"	1 1/4"	2.95"	9"	6 1/2"	9 1/2"	1,378	6771K437	000000	6771K54	00000	6771K61	00000
2,271 in·lbf @ 1,750 rpm	36											3,500	1.03	5/8"	1 3/8"	3.54"	10 1/2"	6 1/2"	10 3/4"	1,525	6771K438	000000	6771K439	00000	6771K441	00000

Right-Angle Speed Reducers for Face-Mount AC Motors

Mount these speed reducers to a NEMA 56C motor to transmit motion at a 90° angle while reducing speed and increasing torque. All require lubrication (not included).

With 1 Output Shaft


With Left-Side Output	With Right-Side Output

Reducer with Left-Side Output

Reducer with Right-Side Output

Radial Load Capacity—Radial loads are loads that are perpendicular to the shaft. They’re commonly caused by components attached to shaft, such as pulleys and sprockets.

Mounts—Gear Box Mounts (sold separately) allow you to mount speed reducers to machinery or other surfaces where fastening into the bottom of the speed reducer is not possible.

	Speed Reducers															Mounts
	Max. Output		Max. Input			Output Shaft			Overall
	Torque	Speed, rpm	Speed, rpm	Power, hp	For Input Shaft Dia.	Dia.	Lg.	Shaft Ctr.-to-Ctr. Distance	Lg.	Wd.	Ht.	Radial Load Cap., lb.	Choose an Output Shaft Location		Each		Each
For NEMA 56C Motor Frames







				5:1 Speed Ratio

				113 in·lbf @ 1,750 rpm	900	4,500	0.5	5/8"	1/2"	1.19"	1"	5 5/8"	5 3/4"	5 3/4"	150	Left Side, Right Side	5887K51	0000000	5887K91	000000


				235 in·lbf @ 1,750 rpm	900	4,500	1	5/8"	5/8"	2"	1.33"	6 1/8"	7"	6"	200	Left Side, Right Side	5887K52	000000	5887K92	00000
				432 in·lbf @ 1,750 rpm	720	3,600	2	5/8"	7/8"	1.78"	1.75"	7 1/2"	7 1/4"	6 3/4"	500	Left Side, Right Side	5887K53	000000	5887K93	00000




						10:1 Speed Ratio

						138 in·lbf @ 1,750 rpm	450	4,500	0.33	5/8"	1/2"	1.19"	1"	5 5/8"	5 3/4"	5 3/4"	150	Left Side, Right Side	5887K57	000000	5887K91	00000


						281 in·lbf @ 1,750 rpm	450	4,500	0.75	5/8"	5/8"	2"	1.33"	6 1/8"	7"	6"	200	Left Side, Right Side	5887K58	000000	5887K92	00000
						536 in·lbf @ 1,750 rpm	360	3,600	1.5	5/8"	7/8"	1.78"	1.75"	7 1/2"	7 1/4"	6 3/4"	500	Left Side, Right Side	5887K59	000000	5887K93	00000




								20:1 Speed Ratio

								149 in·lbf @ 1,750 rpm	225	4,500	0.25	5/8"	1/2"	1.19"	1"	5 5/8"	5 3/4"	5 3/4"	150	Left Side, Right Side	5887K64	000000	5887K91	00000


								308 in·lbf @ 1,750 rpm	225	4,500	0.5	5/8"	5/8"	2"	1.33"	6 1/8"	7"	6"	200	Left Side, Right Side	5887K65	000000	5887K92	00000
								590 in·lbf @ 1,750 rpm	180	3,600	1	5/8"	7/8"	1.78"	1.75"	7 1/2"	7 1/4"	6 3/4"	500	Left Side, Right Side	5887K66	000000	5887K93	00000
								892 in·lbf @ 1,750 rpm	180	3,600	1	5/8"	1"	2.09"	2.06"	8 1/8"	7 9/16"	7 1/4"	700	Left Side, Right Side	5887K67	000000	5887K94	00000




										30:1 Speed Ratio

										311 in·lbf @ 1,750 rpm	150	4,500	0.33	5/8"	5/8"	2"	1.33"	6 1/8"	7"	6"	200	Left Side, Right Side	5887K72	000000	5887K92	00000


										573 in·lbf @ 1,750 rpm	120	3,600	0.5	5/8"	7/8"	1.78"	1.75"	7 1/2"	7 1/4"	6 3/4"	500	Left Side, Right Side	5887K73	000000	5887K93	00000
										871 in·lbf @ 1,750 rpm	120	3,600	1	5/8"	1"	2.09"	2.06"	8 1/8"	7 9/16"	7 1/4"	700	Left Side, Right Side	5887K74	000000	5887K94	00000




												40:1 Speed Ratio

												307 in·lbf @ 1,750 rpm	112	4,500	0.25	5/8"	5/8"	2"	1.33"	6 1/8"	7"	6"	200	Left Side, Right Side	5887K78	000000	5887K92	00000


												609 in·lbf @ 1,750 rpm	90	3,600	0.5	5/8"	7/8"	1.78"	1.75"	7 1/2"	7 1/4"	6 3/4"	500	Left Side, Right Side	5887K79	000000	5887K93	00000
												876 in·lbf @ 1,750 rpm	90	3,600	0.75	5/8"	1"	2.09"	2.06"	8 1/8"	7 9/16"	7 1/4"	700	Left Side, Right Side	5887K81	000000	5887K94	00000
												1,206 in·lbf @ 1,750 rpm	90	3,600	1	5/8"	1 1/8"	2.38"	2.38"	8 3/4"	8"	7 1/4"	900	Left Side, Right Side	5887K82	00000000	5887K95	00000




60:1 Speed Ratio

271 in·lbf @ 1,750 rpm	75													4,500	0.17	5/8"	5/8"	2"	1.33"	6 1/8"	7"	6"	200	Left Side, Right Side	5887K85	000000	5887K92	00000


527 in·lbf @ 1,750 rpm	60													3,600	0.33	5/8"	7/8"	1.78"	1.75"	7 1/2"	7 1/4"	6 3/4"	500	Left Side, Right Side	5887K86	000000	5887K93	00000
826 in·lbf @ 1,750 rpm	60	3,600												0.5	5/8"	1"	2.09"	2.06"	8 1/8"	7 9/16"	7 1/4"	700	Left Side, Right Side	5887K87	000000	5887K94	00000
1,128 in·lbf @ 1,750 rpm	60	3,600	0.75											5/8"	1 1/8"	2.38"	2.38"	8 3/4"	8"	7 1/4"	900	Left Side, Right Side	5887K88	00000000	5887K95	00000
1,385 in·lbf @ 1,750 rpm	60	3,600	0.75											5/8"	1 1/8"	2.63"	2.62"	9 1/2"	9"	8 1/2"	1,000	Left Side, Right Side	5887K89	00000000	5887K96	00000




		80:1 Speed Ratio

		222 in·lbf @ 1,750 rpm	56											4,500	0.16	5/8"	5/8"	2"	1.33"	6 1/8"	7"	6"	200	Left Side, Right Side	5887K15	000000	5887K92	00000


		387 in·lbf @ 1,750 rpm	45	3,600										0.25	5/8"	7/8"	1.78"	1.75"	7 1/2"	7 1/4"	6 3/4"	500	Left Side, Right Side	5887K22	000000	5887K93	00000
		634 in·lbf @ 1,750 rpm	45	3,600	0.33									5/8"	1"	2.09"	2.06"	8 1/8"	7 9/16"	7 1/4"	700	Left Side, Right Side	5887K62	00000000	5887K94	00000
		1,069 in·lbf @ 1,750 rpm	45	3,600	0.75									5/8"	1 1/8"	2.63"	2.62"	9 1/2"	9"	8 1/2"	1,000	Left Side, Right Side	5887K97	00000000	5887K96	00000

Oil

		Each
1 qt. Lubricant	5887K1	000000

Sanitary Right-Angle Speed Reducers

Cut shaft speed and increase torque while transmitting motion at a 90° angle in food, pharmaceutical, and other sanitary environments. Made of stainless steel, these reducers won’t corrode from frequent washdowns with harsh cleaners and sanitizers. All have a rounded design and polished surfaces, so there are no crevices where bacteria can grow, reducing the chance of a foodborne illness. Double input and output seals block out contaminants and prevent lubricant leaks.

These speed reducers have multiple gear teeth that are engaged at the same time to create more torque than other same-size reducers. They’re also more durable for a long service life. All are permanently lubricated to save maintenance time and effort. Connect them to a motor using a shaft coupling (not included).

With 1 Output Shaft


Reducer with Left-Side Output	Reducer with Right-Side Output


Reducer with Left-Side Output	Reducer with Right-Side Output

IP69K Enclosure Rating— Rated IP69K, they’re dust- and water-tight against high-pressure and high-temperature washdowns.

Radial Load Capacity—Radial loads are loads that are perpendicular to the shaft. They’re commonly caused by components attached to shaft, such as pulleys and sprockets.

Max. Output		Max. Input		Input Shaft		Output Shaft			Overall
Torque	Speed, rpm	Speed, rpm	Power, hp	Dia.	Lg.	Dia.	Lg.	Shaft Ctr.-to-Ctr. Distance	Lg.	Wd.	Ht.	Radial Load Cap., lb.	Enclosure Rating	Choose an Output Shaft Location		Each







			5:1 Speed Ratio

			429 in·lbf @ 1,750 rpm	350	1,750	2.53	3/4"	1.57"	3/4"	1.97"	1.54"	7.46"	7.03"	5.45"	600	IP69K	Left Side, Right Side	6040N61	000000000


			736 in·lbf @ 1,750 rpm	350	1,750	2.96	3/4"	1.57"	1 1/8"	2.15"	1.97"	7.6"	8.09"	6.35"	1,200	IP69K	Left Side, Right Side	6040N63	00000000




					20:1 Speed Ratio

					1,240 in·lbf @ 1,750 rpm	88	1,750	1.58	3/4"	1.57"	1 1/8"	2.15"	1.97"	7.6"	8.09"	6.35"	1,200	IP69K	Left Side, Right Side	6040N69	00000000




							30:1 Speed Ratio

							912 in·lbf @ 1,750 rpm	58	1,750	1	3/4"	1.57"	1"	1.86"	1.75"	7.93"	7.13"	5.84"	1,100	IP69K	Left Side, Right Side	6040N72	00000000




									40:1 Speed Ratio

									643 in·lbf @ 1,750 rpm	44	1,750	0.59	3/4"	1.57"	3/4"	1.97"	1.54"	7.46"	7.03"	5.45"	600	IP69K	Left Side, Right Side	6040N74	00000000


									871 in·lbf @ 1,750 rpm	44	1,750	0.8	3/4"	1.57"	1"	1.86"	1.75"	7.93"	7.13"	5.84"	1,100	IP69K	Left Side, Right Side	6040N75	00000000
									1,130 in·lbf @ 1,750 rpm	44	1,750	0.99	3/4"	1.57"	1 1/8"	2.15"	1.97"	7.6"	8.09"	6.35"	1,200	IP69K	Left Side, Right Side	6040N76	00000000




											60:1 Speed Ratio

											594 in·lbf @ 1,750 rpm	29	1,750	0.39	3/4"	1.57"	3/4"	1.97"	1.54"	7.46"	7.03"	5.45"	600	IP69K	Left Side, Right Side	6040N77	00000000


											807 in·lbf @ 1,750 rpm	29	1,750	0.53	3/4"	1.57"	1"	1.86"	1.75"	7.93"	7.13"	5.84"	1,100	IP69K	Left Side, Right Side	6040N78	00000000
											1,050 in·lbf @ 1,750 rpm	29	1,750	0.69	3/4"	1.57"	1 1/8"	2.15"	1.97"	7.6"	8.09"	6.35"	1,200	IP69K	Left Side, Right Side	6040N79	00000000

Sanitary Right-Angle Speed Reducers for Face-Mount AC Motors

With a sanitary design for food-processing environments, these speed reducers mount to the face of your motor—no coupler required—to slow shafts and increase torque while transmitting motion at a 90° angle. The 316 stainless steel housing resists corrosion from frequent washdowns with harsh cleaners. Rounded edges and a polished surface make the housing easy to clean and leave no crevices for bacteria to grow in. To protect against leaks and contamination, they have double input and output seals.

Since multiple teeth come in contact at once, these speed reducers are more durable and create more torque than other speed reducers of the same size. They’re often used to generate large amounts of torque in tight spaces. To save maintenance time, they’re permanently lubricated.

With 1 Output Shaft


Reducer with Left-Side Output	Reducer with Right-Side Output


Reducer with Left-Side Output	Reducer with Right-Side Output

IP69K Enclosure Rating— Rated IP69K, they’re dust- and water-tight against high-pressure and high-temperature washdowns.

Radial Load Capacity—Radial loads are loads that are perpendicular to the shaft. They’re commonly caused by components attached to shaft, such as pulleys and sprockets.

	Max. Output		Max. Input			Output Shaft			Overall
	Torque	Speed, rpm	Speed, rpm	Power, hp	For Input Shaft Dia.	Dia.	Lg.	Shaft Ctr.-to-Ctr. Distance	Lg.	Wd.	Ht.	Radial Load Cap., lb.	Enclosure Rating	Choose an Output Shaft Location		Each
For NEMA 56C Motor Frames







				5:1 Speed Ratio

				429 in·lbf @ 1,750 rpm	350	1,750	2.53	5/8"	3/4"	2.063"	1.54"	9.49"	7.56"	6.7"	450	IP69K	Left Side, Right Side	7660N11	000000000


				736 in·lbf @ 1,750 rpm	350	1,750	2.96	5/8"	1 1/8"	2.087"	1.97"	10.126"	7.94"	7.496"	950	IP69K	Left Side, Right Side	7660N13	00000000




						10:1 Speed Ratio

						597 in·lbf @ 1,750 rpm	175	1,750	1.84	5/8"	3/4"	2.063"	1.54"	9.49"	7.56"	6.7"	450	IP69K	Left Side, Right Side	7660N14	00000000




								20:1 Speed Ratio

								957 in·lbf @ 1,750 rpm	87	1,750	1.55	5/8"	1"	2.063"	1.75"	9.49"	7.56"	7.06"	750	IP69K	Left Side, Right Side	7660N18	00000000




										30:1 Speed Ratio

										912 in·lbf @ 1,750 rpm	58	1,750	1	5/8"	1"	2.063"	1.75"	9.49"	7.56"	7.06"	750	IP69K	Left Side, Right Side	7660N21	00000000




												40:1 Speed Ratio

												643 in·lbf @ 1,750 rpm	43	1,750	0.59	5/8"	3/4"	2.063"	1.54"	9.49"	7.56"	6.7"	450	IP69K	Left Side, Right Side	7660N22	00000000




														50:1 Speed Ratio

														840 in·lbf @ 1,750 rpm	35	1,750	0.64	5/8"	1"	2.063"	1.75"	9.49"	7.56"	7.06"	750	IP69K	Left Side, Right Side	7660N25	00000000




																60:1 Speed Ratio

																594 in·lbf @ 1,750 rpm	29	1,750	0.39	5/8"	3/4"	2.063"	1.54"	9.49"	7.56"	6.7"	450	IP69K	Left Side, Right Side	7660N27	00000000


																807 in·lbf @ 1,750 rpm	29	1,750	0.53	5/8"	1"	2.063"	1.75"	9.49"	7.56"	7.06"	750	IP69K	Left Side, Right Side	7660N28	00000000
																1,050 in·lbf @ 1,750 rpm	29	1,750	0.69	5/8"	1 1/8"	2.087"	1.97"	10.126"	7.94"	7.496"	950	IP69K	Left Side, Right Side	7660N29	00000000


																For NEMA 140TC Motor Frames







		5:1 Speed Ratio

		574 in·lbf @ 1,750 rpm	350															1,750	2.9	7/8"	1"	2.063"	1.75"	9.49"	7.56"	7.06"	750	IP69K	Left Side, Right Side	7660N32	00000000




																		20:1 Speed Ratio

																		957 in·lbf @ 1,750 rpm	87	1,750	1.55	7/8"	1"	2.063"	1.75"	9.49"	7.56"	7.06"	750	IP69K	Left Side, Right Side	7660N36	00000000




																		50:1 Speed Ratio

																		840 in·lbf @ 1,750 rpm	35	1,750	0.64	7/8"	1"	2.063"	1.75"	9.49"	7.56"	7.06"	750	IP69K	Left Side, Right Side	7660N43	00000000




																		60:1 Speed Ratio

																		807 in·lbf @ 1,750 rpm	29	1,750	0.53	7/8"	1"	2.063"	1.75"	9.49"	7.56"	7.06"	750	IP69K	Left Side, Right Side	7660N45	00000000