Motor Brackets | McMaster-Carr

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85 Products

Adjustable Motor Mounts


Style A	Style B

Style C	Style D

Style E	Style F

Style G

Maximize your belt-driven system’s efficiency while minimizing wear on bearings, pulleys, and other components. Made in the U.S., these adjustable mounts secure motors in the perfect position for proper belt tension. Make fine adjustments or tension the belt with a quick turn of the screw, hex nut, or hand crank. Choose a mount that fits the NEMA frame of your motor, which is listed on the nameplate.

Angular Adjustment—The right choice for applications with a 20° and greater angle between the motor and driven unit. Just turn a hex nut to tilt your motor up or down for better belt positioning.

For Constant Motor Speeds—These mounts keep motors tightly secured while operating equipment with a fixed speed, such as fans. You can only adjust the motor position when your system is off.

For Variable Motor Speeds—These mounts let you move the motor while the system runs to adjust for vibrations and varying loads. They’re best-suited for HVAC motors, cleated conveyors on an incline, and other systems with fluctuating power demands.

Automatic Tensioning—Mounts with automatic tensioning include shock-absorbing springs that compensate for bumps and vibrations, similar to the suspension in a car. Ideal for rock crushers and other machinery with irregular and challenging workloads, they reduce maintenance costs and help bearings, belts, and pullers last longer.

	For Motor Frame Size	For Max. Power, hp	Mounting Position	Max. Adjustment	Tilt Angle	Adjustment Mechanism	Tensioning Type	Lg.	Wd.	Ht.		Each
For Linear Adjustment for Constant Motor Speeds



	A	NEMA 143, NEMA 143T	1 1/2	Horizontal	3"	—	Cap Screw	Manual	10 1/2"	7 1/2"	1 1/8"	62035K22	000000


	A	NEMA 145, NEMA 145T	3	Horizontal	3"	—	Cap Screw	Manual	10 1/2"	8 1/2"	1 1/8"	62035K23	00000
	A	NEMA 182, NEMA 182T	5	Horizontal	3"	—	Cap Screw	Manual	12 3/4"	9 1/2"	1 1/2"	62035K24	00000
	A	NEMA 184, NEMA 184T	7 1/2	Horizontal	3"	—	Cap Screw	Manual	12 3/4"	10 1/2"	1 1/2"	62035K25	00000
	A	NEMA 213, NEMA 213T	10	Horizontal	3 1/2"	—	Cap Screw	Manual	15"	11"	1 3/4"	62035K26	00000
	A	NEMA 215, NEMA 215T	15	Horizontal	3 1/2"	—	Cap Screw	Manual	15"	12 1/2"	1 3/4"	62035K27	00000
	A	NEMA 48	3	Horizontal	3"	—	Cap Screw	Manual	10"	6 1/4"	1 1/8"	62035K201	00000
	A	NEMA 56	3	Horizontal	3"	—	Cap Screw	Manual	10 5/8"	6 1/2"	1 1/8"	62035K21	00000
	B	NEMA 254, NEMA 254T	20	Horizontal	4"	—	Cap Screw	Manual	17 3/4"	15 1/8"	2"	62035K28	000000
	B	NEMA 256, NEMA 256T	25	Horizontal	4"	—	Cap Screw	Manual	17 3/4"	16 7/8"	2"	62035K29	000000
	B	NEMA 284, NEMA 284T	30	Horizontal	4 1/2"	—	Cap Screw	Manual	19 3/4"	16 7/8"	2"	62035K31	000000


	B	NEMA 286, NEMA 286T	40	Horizontal	4 1/2"	—	Cap Screw	Manual	19 3/4"	18 3/8"	2"	62035K32	000000
	B	NEMA 324	50	Horizontal	5 1/4"	—	Cap Screw	Manual	22 3/4"	19 1/4"	2 1/2"	62035K202	000000
	B	NEMA 326	60	Horizontal	5 1/4"	—	Cap Screw	Manual	22 3/4"	20 3/4"	2 1/2"	62035K203	000000
	B	NEMA 364	75	Horizontal	6"	—	Cap Screw	Manual	25 1/2"	20 1/2"	2 1/2"	62035K204	000000
	B	NEMA 365	90	Horizontal	6"	—	Cap Screw	Manual	25 1/2"	21 1/2"	2 1/2"	62035K205	000000
	B	NEMA 404	120	Horizontal	7"	—	Cap Screw	Manual	28 3/4"	22 3/8"	3"	62035K206	000000
	B	NEMA 405	150	Horizontal	7"	—	Cap Screw	Manual	28 3/4"	23 7/8"	3"	62035K207	000000
	B	NEMA 444	200	Horizontal	7 1/2"	—	Cap Screw	Manual	31 1/4"	24 5/8"	3"	62035K208	000000
	B	NEMA 445	200	Horizontal	7 1/2"	—	Cap Screw	Manual	31 1/4"	26 5/8"	3"	62035K209	000000
	B	NEMA 447	200	Horizontal	7 1/2"	—	Cap Screw	Manual	31 1/4"	30 1/8"	3"	62035K211	000000


	B	NEMA 449	200	Horizontal	7 1/2"	—	Cap Screw	Manual	31 1/4"	35 1/8"	3"	62035K212	000000


	For Linear Adjustment for Variable Motor Speeds



			C	NEMA 143, NEMA 145	5	Horizontal	3"	—	Nut	Automatic	11 11/16"	8 1/4"	1 7/8"	62035K213	000000


			C	NEMA 182, NEMA 184	8	Horizontal	3"	—	Nut	Automatic	14 1/16"	9 3/8"	2 1/8"	62035K214	000000
			C	NEMA 213, NEMA 215	12	Horizontal	3 1/2"	—	Nut	Automatic	16 3/8"	11 3/8"	2 9/16"	62035K215	000000
			C	NEMA 254, NEMA 256	25	Horizontal	4"	—	Nut	Automatic	19 1/2"	15 1/4"	3 1/8"	62035K216	00000000
			C	NEMA 284, NEMA 286	35	Horizontal	5"	—	Nut	Automatic	22 1/8"	16 3/4"	3 3/16"	62035K217	00000000
			C	NEMA 48, NEMA 56	3	Any Angle	2 1/8"	—	Nut	Automatic	9 1/2"	5 7/8"	1 3/8"	61945K11	000000
			D	NEMA 48, NEMA 56	3	Any Angle	5 7/8"	—	Hand Crank	Manual	13 1/8"	6 1/4"	3"	6104K12	000000
			E	NEMA 143T, NEMA 145T, NEMA 182, NEMA 184, NEMA 48, NEMA 56, NEMA 56H, NEMA 66, NEMA 203	2	Horizontal, Vertical	8"	—	Hand Crank	Manual	18 1/8"	8"	3 1/4"	6531K12	000000


			For Angular Adjustment for Constant Motor Speeds



					F	NEMA 143, NEMA 145, NEMA 56	3	Any Angle	—	0° to 30°	Pivot	Manual	15"	8 3/8"	3 1/2"	62035K218	00000


					F	NEMA 182, NEMA 184, NEMA 213, NEMA 215	12	Any Angle	—	0° to 30°	Pivot	Manual	16 3/4"	11 7/8"	3"	62035K219	000000
					F	NEMA 254, NEMA 256, NEMA 284, NEMA 286	35	Any Angle	—	0° to 30°	Pivot	Manual	20"	16 5/8"	3 5/8"	62035K221	000000


					For Angular Adjustment for Variable Motor Speeds



G							NEMA 48, NEMA 56	3	Any Angle	—	0° to 30°	Hand Crank	Manual	12 1/2"	5 7/8"	3 1/2"	6104K11	000000

Hydraulic Pump-to-Motor Mount Adapters

Mate a NEMA C-face motor to the mounting flange of a hydraulic pump. Mount adapters reduce noise and protect the shaft and coupling connection between the motor and the pump.

For SAE Pump Flange Size	For Motor Frame Size	Dp.	Mounting Flange Angle	Material		Each
AA	NEMA 56C, NEMA 143TC, NEMA 145TC, NEMA 182UC, NEMA 184UC	3.53"	—	Aluminum	4851N12	000000
AA	NEMA 56C, NEMA 143TC, NEMA 145TC	4.25"	—	Aluminum	62905K42	00000
AA	NEMA 182TC, NEMA 184TC, NEMA 213TC, NEMA 213UC, NEMA 215TC, NEMA 215UC, NEMA 254TC, NEMA 254UC, NEMA 256TC, NEMA 256UC	5"	—	Aluminum	4851N16	000000
AA	NEMA 182TC, NEMA 184TC, NEMA 213TC, NEMA 213UC, NEMA 215TC, NEMA 215UC, NEMA 254TC, NEMA 254UC, NEMA 256TC, NEMA 256UC	5.88"	—	Aluminum	4851N17	000000
A	NEMA 56C, NEMA 143TC, NEMA 145TC, NEMA 182UC, NEMA 184UC	3.53"	—	Aluminum	4851N13	00000
A	NEMA 56C, NEMA 143TC, NEMA 145TC	4.25"	—	Aluminum	62905K43	00000
A	NEMA 56C, NEMA 143TC, NEMA 145TC, NEMA 182UC, NEMA 184UC	5"	—	Aluminum	4851N14	000000
A	NEMA 182TC, NEMA 184TC, NEMA 213TC, NEMA 215TC, NEMA 254TC, NEMA 256TC	5"	—	Aluminum	62905K44	00000
A	NEMA 182TC, NEMA 184TC, NEMA 213TC, NEMA 215TC, NEMA 254TC, NEMA 256TC	5.81"	—	Aluminum	62905K45	00000
A	NEMA 182TC, NEMA 184TC, NEMA 213TC, NEMA 215TC, NEMA 254TC, NEMA 256TC	6.81"	—	Aluminum	62905K47	00000
A	NEMA 284TC, NEMA 284TSC, NEMA 284UC, NEMA 286TC, NEMA 286TSC, NEMA 286USC	7.19"	—	Aluminum	4851N23	000000
B	NEMA 56C, NEMA 143TC, NEMA 145TC, NEMA 182UC, NEMA 184UC	4.25"	—	Aluminum	4851N15	000000
B	NEMA 182TC, NEMA 184TC, NEMA 213TC, NEMA 213UC, NEMA 215TC, NEMA 215UC, NEMA 254TC, NEMA 254UC, NEMA 256TC, NEMA 256UC	5"	—	Aluminum	4851N18	00000
B	NEMA 182TC, NEMA 184TC, NEMA 213TC, NEMA 215TC, NEMA 254TC, NEMA 256TC	5.81"	—	Aluminum	62905K51	00000
B	NEMA 182TC, NEMA 184TC, NEMA 213TC, NEMA 213UC, NEMA 215TC, NEMA 215UC, NEMA 254TC, NEMA 254UC, NEMA 256TC, NEMA 256UC	6.38"	45°	Aluminum	4851N21	000000
B	NEMA 182TC, NEMA 184TC, NEMA 213TC, NEMA 215TC, NEMA 254TC, NEMA 256TC	6.81"	—	Aluminum	62905K48	00000
B	NEMA 284TC, NEMA 284TSC, NEMA 284UC, NEMA 286TC, NEMA 286TSC, NEMA 286USC	7.88"	—	Aluminum	4851N24	000000
C	NEMA 182TC, NEMA 184TC, NEMA 213TC, NEMA 213UC, NEMA 215TC, NEMA 215UC, NEMA 254TC, NEMA 254UC, NEMA 256TC, NEMA 256UC	6.38"	—	Aluminum	4851N19	000000
C	NEMA 182TC, NEMA 184TC, NEMA 213TC, NEMA 213UC, NEMA 215TC, NEMA 215UC, NEMA 254TC, NEMA 254UC, NEMA 256TC, NEMA 256UC	6.38"	45°	Aluminum	4851N22	000000
4F17	NEMA 56C, NEMA 143TC, NEMA 145TC, NEMA 182UC, NEMA 184UC	3.53"	—	Aluminum	4851N11	00000
4F17	NEMA 56C, NEMA 143TC, NEMA 145TC	4.25"	—	Aluminum	62905K41	00000

Dry-Running Positioning Slides for Stepper Motors

With PTFE sleeve bearings and a low-friction ball screw, these slides don’t require the mess and maintenance of lubrication but still give you precise positioning anywhere along the length of their stroke. Because they have sleeve bearings, they have fewer moving parts, so they perform better in dusty and wet environments than slides with ball bearings. They’re also better at handling impact and vibration.

All slides require a stepper motor, driver, and controller (not included) to operate. As part of this system, they move in precise increments, like the head on an inkjet printer. These positioning slides work well for automated assemblies and other applications that require fine, repeatable motion control.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is how far the carriage moves with one rotation of the ball screw.

		Dynamic Load Cap.							For Max. Motor		Overall, mm			Carriage
	Stroke Lg., mm	Horiz.	Vert.	Static Load Cap., lb.	Max. Speed, mm/s	Travel Distance per Turn, mm	Repeatability, mm	For Shaft Dia.	Speed, rpm	Torque, in·ozf	Lg.	Wd.	Ht.	Lg., mm	Wd., mm	Bearing Type	Base Material		Each
For NEMA 17 Motor Frames



		100	Not Rated	Not Rated	630	50	2	-0.1 to 0.1	5 mm	1,500	71	276	74	56	69	73	Plain	Aluminum	6650N11	0000000


		200	Not Rated	Not Rated	630	50	2	-0.1 to 0.1	5 mm	1,500	71	376	74	56	69	73	Plain	Aluminum	6650N13	000000
		300	Not Rated	Not Rated	630	50	2	-0.1 to 0.1	5 mm	1,500	71	476	74	56	69	73	Plain	Aluminum	6650N15	000000
		400	Not Rated	Not Rated	630	50	2	-0.1 to 0.1	5 mm	1,500	71	576	74	56	69	73	Plain	Aluminum	6650N17	000000
		500	Not Rated	Not Rated	630	50	2	-0.1 to 0.1	5 mm	1,500	71	676	74	56	69	73	Plain	Aluminum	6650N19	000000
		600	Not Rated	Not Rated	630	50	2	-0.1 to 0.1	5 mm	1,500	71	776	74	56	69	73	Plain	Aluminum	6650N22	000000


		For NEMA 23 Motor Frames



				100	Not Rated	Not Rated	630	50	2	-0.1 to 0.1	1/4"	1,500	283	277	74	56	69	73	Plain	Aluminum	6650N12	000000


				200	Not Rated	Not Rated	630	50	2	-0.1 to 0.1	1/4"	1,500	283	377	74	56	69	73	Plain	Aluminum	6650N14	000000
				300	Not Rated	Not Rated	630	50	2	-0.1 to 0.1	1/4"	1,500	283	477	74	56	69	73	Plain	Aluminum	6650N16	000000
				400	Not Rated	Not Rated	630	50	2	-0.1 to 0.1	1/4"	1,500	283	577	74	56	69	73	Plain	Aluminum	6650N18	000000
				500	Not Rated	Not Rated	630	50	2	-0.1 to 0.1	1/4"	1,500	283	677	74	56	69	73	Plain	Aluminum	6650N21	000000
				600	Not Rated	Not Rated	630	50	2	-0.1 to 0.1	1/4"	1,500	283	777	74	56	69	73	Plain	Aluminum	6650N23	000000

Positioning Slides for Stepper Motors

Add your own stepper motor and controller to precisely move the ball screw and carriage smoothly at high speeds, like a head on an inkjet printer. With a repeatability of -0.01 to 0.01 mm—thinner than a strand of hair—the carriage hits the same spot every time. These positioning slides work well for automated assemblies and other applications that require fine, repeatable motion control.

The carriage rides along the inside of the rail, making these slides more compact than traditional carriages and guide rails. Made of steel with a U-shaped rail, these slides resist twisting forces that could affect their positioning. This also means they can be installed with only one end supported or with both ends overhanging. The same load rating applies no matter how the slides are oriented.

Travel Distance per Turn—Travel distance per turn, also known as screw lead, is how far the carriage moves with one rotation of the ball screw.

		Dynamic Load Cap., lb.						For Max. Motor		Overall, mm			Carriage
	Stroke Lg., mm	Horiz.	Vert.	Max. Speed, mm/s	Travel Distance per Turn, mm	Repeatability, mm	For Shaft Dia.	Speed, rpm	Torque, in·ozf	Lg.	Wd.	Ht.	Lg., mm	Wd., mm	Bearing Type	Base Material		Each
For NEMA 14 Motor Frames



		30	148	148	100	1	-0.01 to 0.01	5 mm	6,000	29.3	166	40	42	46	23	Ball	Steel	6734K211	0000000


		80	148	148	100	1	-0.01 to 0.01	5 mm	6,000	29.3	216	40	42	46	23	Ball	Steel	6734K212	00000000
		110	528	528	200	2	-0.01 to 0.01	5 mm	6,000	88.1	276	50	36	47.4	31	Ball	Steel	6734K214	00000000
		130	148	148	100	1	-0.01 to 0.01	5 mm	6,000	29.3	266	40	42	46	23	Ball	Steel	6734K213	00000000


		For NEMA 17 Motor Frames



				100	402	402	470	6	-0.01 to 0.01	5 mm	4,700	176	277	60	44.5	76	37.4	Ball	Steel	6734K811	00000000


				110	528	528	200	2	-0.01 to 0.01	5 mm	6,000	88.1	276.5	50	42	47.4	31	Ball	Steel	6734K215	00000000
				160	528	528	200	2	-0.01 to 0.01	5 mm	6,000	88.1	326.5	50	42	47.4	31	Ball	Steel	6734K216	00000000
				200	402	402	470	6	-0.01 to 0.01	5 mm	4,700	176	377	60	44.5	76	37.4	Ball	Steel	6734K813	00000000
				210	528	528	200	2	-0.01 to 0.01	5 mm	6,000	88.1	376.5	50	42	47.4	31	Ball	Steel	6734K217	00000000


				For NEMA 23 Motor Frames



						100	402	402	470	6	-0.01 to 0.01	1/4"	4,700	176	280	60	56.4	76	37.4	Ball	Steel	6734K812	00000000


						200	402	402	470	6	-0.01 to 0.01	1/4"	4,700	176	380	60	56.4	76	37.4	Ball	Steel	6734K814	00000000
						300	395	395	790	10	-0.01 to 0.01	1/4"	6,000	176	480	60	56.4	76	37.4	Ball	Steel	6734K815	00000000
						400	395	395	790	10	-0.01 to 0.01	1/4"	5,880	176	580	60	56.4	76	37.4	Ball	Steel	6734K816	00000000
						500	395	395	650	10	-0.01 to 0.01	1/4"	3,900	176	680	60	56.4	76	37.4	Ball	Steel	6734K817	00000000
						600	395	395	470	10	-0.01 to 0.01	1/4"	2,820	176	780	60	56.4	76	37.4	Ball	Steel	6734K818	00000000

Two-Axis Mounting Plates for Positioning Slides with 60 mm Overall Width


Horizontal Mounting Plate (Shown Installed)	Vertical Mounting Plate (Shown Installed)	Side Mounting Plate (Shown Installed)

Two-axis mounting plates secure two slides together for motion along two axes.

Mounting Position	Mounting Location	Material		Each
Horizontal	—	Aluminum	6734K819	0000000
Vertical	—	Aluminum	6734K822	000000
—	Side	Aluminum	6734K821	000000