Press Fit Mount Wheels | McMaster-Carr

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75 Products

Press-Fit Low-Profile Drive Rollers

Install these rollers without the need for set screws or keyways. With a nonprotruding hub, they fit where standard drive rollers can’t. Also known as contact wheels and feed rollers, drive rollers spin in unison with shaft or stud to transmit power. These urethane rubber rollers are nonmarring and wear resistant.

	Roller
	Dia.	Wd.	For Shaft Dia.	Shaft Mount Type	Temp. Range, ° F	Hardness (Hardness Rating)		Each
Urethane Rubber Rollers with Aluminum Hub



		1/2"	1/4"	1/4"	Press Fit	-40 to 180	Durometer 55A (Medium) Black	2473K51	000000


		1/2"	3/8"	1/4"	Press Fit	-40 to 180	Durometer 55A (Medium) Black	2473K52	00000
		1/2"	1/2"	1/4"	Press Fit	-40 to 180	Durometer 55A (Medium) Black	2473K53	00000
		5/8"	1/4"	1/4"	Press Fit	-40 to 180	Durometer 55A (Medium) Black	2473K55	00000
		5/8"	3/8"	1/4"	Press Fit	-40 to 180	Durometer 55A (Medium) Black	2473K56	00000
		3/4"	1/4"	1/4"	Press Fit	-40 to 180	Durometer 55A (Medium) Black	2473K59	00000
		3/4"	1/2"	1/4"	Press Fit	-40 to 180	Durometer 55A (Medium) Black	2473K61	00000
		3/4"	3/4"	1/4"	Press Fit	-40 to 180	Durometer 55A (Medium) Black	2473K62	00000
		1"	1/4"	1/4"	Press Fit	-40 to 180	Durometer 55A (Medium) Black	2473K66	00000
		1"	1/2"	1/4"	Press Fit	-40 to 180	Durometer 55A (Medium) Black	2473K67	00000
		1"	3/4"	1/4"	Press Fit	-40 to 180	Durometer 55A (Medium) Black	2473K68	00000


		1"	1"	1/2"	Press Fit	-40 to 180	Durometer 55A (Medium) Black	2473K69	00000
		1 1/4"	1/4"	1/4"	Press Fit	-40 to 180	Durometer 55A (Medium) Black	2473K71	00000
		1 1/4"	3/4"	1/4"	Press Fit	-40 to 180	Durometer 55A (Medium) Black	2473K72	00000
		1 1/4"	1"	1/2"	Press Fit	-40 to 180	Durometer 55A (Medium) Black	2473K74	00000
		1 1/2"	1/4"	1/2"	Press Fit	-40 to 180	Durometer 55A (Medium) Black	2473K75	00000
		1 1/2"	3/4"	1/2"	Press Fit	-40 to 180	Durometer 55A (Medium) Black	2473K76	00000
		1 1/2"	1"	1/2"	Press Fit	-40 to 180	Durometer 55A (Medium) Black	2473K77	00000
		2"	1/4"	1/2"	Press Fit	-40 to 180	Durometer 55A (Medium) Black	2473K78	00000
		2"	1/2"	1/2"	Press Fit	-40 to 180	Durometer 55A (Medium) Black	2473K79	00000
		2"	1"	1/2"	Press Fit	-40 to 180	Durometer 55A (Medium) Black	2473K81	00000

Press-Fit Ball Transfers


Style A	Style B	Style C

Style D	Style E

Drop-in design makes for easy installation.

Weight capacity is given in ball up orientation. Ball down or angled could reduce the weight capacity stated.

Steel Ball—Steel balls are durable.

Stainless Steel Ball—Stainless steel balls offer the most corrosion resistance.

Nylon Ball—Nylon balls are nonmarking.

Angled—Ball transfers with an angled working orientation can be used to form support stands.

									Temp., ° F
	Style	Ball Dia.	Wt. Cap., lb.	Ht.	Dp.	Dia.	Working Orientation	Flange Dia.	Min.	Max.		Each
Steel Ball







				Zinc-Plated Steel Housing

				A	1/2"	65	7/32"	1/2"	7/8"	Ball Up, Ball Down, Angled	1/2"	—	—	6421K21	000000


				B	5/8"	40	3/8"	3/8"	1"	Ball Up	1 3/8"	—	—	6421K41	0000
				C	5/8"	65	3/8"	7/16"	15/16"	Ball Up, Ball Down, Angled	1 7/32"	—	—	6421K66	00000
				C	7/8"	175	3/8"	25/32"	1 13/32"	Ball Up, Ball Down, Angled	1 25/32"	—	—	6421K67	00000
				C	1 3/16"	330	17/32"	29/32"	1 25/32"	Ball Up, Ball Down, Angled	2 3/16"	—	—	6421K68	00000
				D	5/8"	125	3/8"	13/16"	15/16"	Ball Up, Ball Down, Angled	1 3/16"	—	—	6421K31	00000
				D	1"	200	5/8"	1 1/4"	1 13/32"	Ball Up, Ball Down, Angled	1 21/32"	—	—	6421K32	00000
				E	5/8"	130	7/32"	7/16"	15/16"	Ball Up, Ball Down, Angled	1 1/4"	—	—	6421K22	00000
				E	1"	440	3/8"	21/32"	1 1/2"	Ball Up, Ball Down, Angled	1 3/4"	—	—	6421K23	00000


				Stainless Steel Ball







								Zinc-Plated Steel Housing

								D	5/8"	125	3/8"	13/16"	15/16"	Ball Up, Ball Down, Angled	1 3/16"	—	—	6421K33	00000


								D	1"	200	5/8"	1 1/4"	1 13/32"	Ball Up, Ball Down, Angled	1 21/32"	—	—	6421K34	00000




										Stainless Steel Housing

										A	1/2"	100	7/32"	1/2"	7/8"	Ball Up, Ball Down, Angled	1/2"	—	—	6421K27	00000


										C	5/8"	80	3/8"	7/16"	15/16"	Ball Up, Ball Down, Angled	1 7/32"	—	—	6421K62	00000
										C	7/8"	220	3/8"	25/32"	1 13/32"	Ball Up, Ball Down, Angled	1 3/4"	—	—	6421K63	00000
										D	5/8"	125	3/8"	13/16"	15/16"	Ball Up, Ball Down, Angled	1 3/16"	—	—	6421K35	00000
										D	1"	200	5/8"	1 1/4"	1 13/32"	Ball Up, Ball Down, Angled	1 21/32"	—	—	6421K36	00000
										E	5/8"	200	7/32"	7/16"	15/16"	Ball Up, Ball Down, Angled	1 1/4"	—	—	6421K28	00000


										Nylon Ball







														Zinc-Plated Steel Housing

														A	1/2"	65	7/32"	1/2"	7/8"	Ball Up, Ball Down, Angled	1/2"	32	250	6421K24	00000


D	5/8"													125	3/8"	13/16"	15/16"	Ball Up, Ball Down, Angled	1 3/16"	32	212	6421K37	00000
D	1"													200	5/8"	1 1/4"	1 13/32"	Ball Up, Ball Down, Angled	1 21/32"	32	212	6421K38	00000
E	5/8"													130	7/32"	7/16"	15/16"	Ball Up, Ball Down, Angled	1 1/4"	32	250	6421K25	00000
E	1"													440	3/8"	21/32"	1 1/2"	Ball Up, Ball Down, Angled	1 3/4"	32	250	6421K26	00000




		Stainless Steel Housing

		C	5/8"											20	3/8"	7/16"	15/16"	Ball Up, Ball Down, Angled	1 7/32"	-20	175	6421K61	00000

Abrasion-Resistant Flex-Grip Press-Fit Drive Rollers

Image of ProductInUse. Front orientation. Contains Annotated, Border, MultipleImages. Drive Rollers. Abrasion-Resistant Flex-Grip Press-Fit Drive Rollers.


Flexible Urethane Rubber Rollers with Steel Hub	Ultra-Flexible Urethane Rubber Rollers with Aluminum Hub

Image of Attribute. Front orientation. Contains Annotated. Abrasion-Resistant Flex-Grip Press-Fit Drive Rollers.

Mount these rollers directly onto your shaft without the need for set screws or keyways. They have a press-fit hub, but you can add your own hub to create a custom roller. Made of urethane rubber, they are nonmarring and wear resistant. The sidewall holes and soft surface allow the roller to gently grab and maintain contact as it is compressed. Also known as contact wheels and feed rollers, these rollers spin with the shaft or stud to transfer power.

Ultra Flexible—Ultra-flexible rollers have larger sidewall holes than flexible rollers, so they compress more and better protect delicate material.

	Roller
	Dia.	Wd.	For Shaft Dia.	Shaft Mount Type	Temp. Range, ° F	Hardness (Hardness Rating)		Each
Flexible Urethane Rubber Rollers with Steel Hub



		2 1/2"	1"	1 1/8"	Press Fit	-65 to 200	Durometer 35A (Soft) Yellow	4221N21	000000


		2 1/2"	1"	1 1/4"	Press Fit	-65 to 200	Durometer 35A (Soft) Yellow	4221N22	00000
		2 1/2"	2"	1 1/8"	Press Fit	-65 to 200	Durometer 35A (Soft) Yellow	4221N23	00000
		2 1/2"	2"	1 1/4"	Press Fit	-65 to 200	Durometer 35A (Soft) Yellow	4221N24	00000
		4"	1"	1 1/8"	Press Fit	-65 to 200	Durometer 35A (Soft) Yellow	4221N26	00000
		4"	1"	1 1/4"	Press Fit	-65 to 200	Durometer 35A (Soft) Yellow	4221N25	00000
		4"	2"	1 1/8"	Press Fit	-65 to 200	Durometer 35A (Soft) Yellow	4221N28	00000
		4"	2"	1 1/4"	Press Fit	-65 to 200	Durometer 35A (Soft) Yellow	4221N27	00000


		Ultra-Flexible Urethane Rubber Rollers with Aluminum Hub



				4"	1"	3/4"	Press Fit	-40 to 180	Durometer 40A (Soft) Yellow	4221N11	00000


				4"	1"	1"	Press Fit	-40 to 180	Durometer 40A (Soft) Yellow	4221N12	00000
				4"	2"	3/4"	Press Fit	-40 to 180	Durometer 40A (Soft) Yellow	4221N13	00000
				4"	2"	1"	Press Fit	-40 to 180	Durometer 40A (Soft) Yellow	4221N14	00000

Heavy Duty Press-Fit Ball Transfers


Style A	Style B	Style C	Style D

Drop-in design makes for easy installation. When used at an angled working orientation, these ball transfers can be used to form support stands.

Weight capacity is given in ball up orientation. Ball down or angled could reduce the weight capacity stated.

Steel Ball—Steel balls are durable.

Stainless Steel Ball—Stainless steel balls offer the most corrosion resistance.

Nylon Ball—Nylon balls are nonmarking.

									Temp., ° F
	Style	Ball Dia.	Wt. Cap., lb.	Ht.	Dp.	Dia.	Working Orientation	Flange Dia.	Min.	Max.		Each
Steel Ball







				Zinc-Plated Steel Housing

				A	1"	705	1/4"	1 17/32"	2"	Ball Up, Ball Down, Angled	—	—	—	6421K53	0000000


				A	1 1/2"	2,200	1/2"	1 29/32"	2 3/8"	Ball Up, Ball Down, Angled	—	—	—	6421K54	000000
				B	1 1/8"	770	17/32"	29/32"	1 25/32"	Ball Up, Ball Down, Angled	2 5/32"	—	—	6421K13	00000
				B	2 1/4"	3,300	1 5/32"	1 7/8"	3 15/16"	Ball Up, Ball Down, Angled	2 19/32"	—	—	6421K14	000000
				C	1 3/16"	770	17/32"	29/32"	1 25/32"	Ball Up, Ball Down, Angled	2 5/32"	—	—	6421K81	00000
				C	1 3/4"	1,325	3/4"	1 11/32"	2 7/16"	Ball Up, Ball Down, Angled	2 15/16"	—	—	6421K82	000000
				D	1 3/4"	670	3/4"	1 11/32"	2 7/16"	Ball Up, Ball Down, Angled	2 15/16"	—	—	6421K69	000000




						Black-Oxide Steel Housing

						A	1/2"	75	1/8"	5/8"	13/16"	Ball Up, Ball Down, Angled	—	—	—	6421K51	00000


						A	1/2"	100	5/32"	23/32"	7/8"	Ball Up, Ball Down, Angled	—	—	—	6421K48	00000
						A	1"	500	9/32"	1 11/32"	1 3/4"	Ball Up, Ball Down, Angled	—	—	—	6421K49	000000


						Stainless Steel Ball







										Stainless Steel Housing

										D	1"	550	3/8"	1 7/32"	1 1/2"	Ball Up, Ball Down, Angled	1 25/32"	—	—	6421K17	000000


										D	1 3/16"	970	17/32"	29/32"	1 25/32"	Ball Up, Ball Down, Angled	2 5/32"	—	—	6421K18	000000
										D	1 3/4"	1,575	3/4"	1 11/32"	2 7/16"	Ball Up, Ball Down, Angled	2 15/16"	—	—	6421K19	000000


										Nylon Ball







														Zinc-Plated Steel Housing

														D	1 3/16"	770	17/32"	29/32"	1 25/32"	Ball Up, Ball Down, Angled	2 5/32"	32	250	6421K15	00000


														D	1 3/4"	1,325	3/4"	1 11/32"	2 7/16"	Ball Up, Ball Down, Angled	2 15/16"	32	250	6421K16	000000

Pop-Up Ball Transfers

These ball transfers rise when you supply air and retract into the housing when air supply ceases, allowing you to move and divert material without lifting. Drop-in design makes for easy installation.

Steel Ball—Steel balls are durable.

Stainless Steel Ball—Stainless steel balls are durable and offer the most corrosion resistance. They also don’t need to be lubricated.

											Air Inlet
	Ball Dia.	Wt. Cap., lb.	Ht.	Top Ht.	Dp.	Dia.	Working Orientation	Flange Dia.	Air Pressure, psi	For Inlet Tube ID	Connection	Material		Each
Steel Ball







				Galvanized Steel Housing

				1"	15	1 5/8"	3/8"	1 1/4"	1 9/16"	Ball Up	1 27/32"	50	1/16"	Barbed	Brass	57855K4	000000


				Stainless Steel Ball







								Galvanized Steel Housing

								1"	15	1 5/8"	3/8"	1 1/4"	1 9/16"	Ball Up	1 27/32"	50	1/16"	Barbed	Brass	57855K11	00000

Shock-Absorbing Press-Fit Ball Transfers

The ball in these transfers is spring-loaded to absorb impact. Drop-in design makes for easy installation.

Steel Ball—Steel balls are durable.

Stainless Steel Ball—Stainless steel balls offer the most corrosion resistance. They also don’t need to be lubricated.

	Ht.	Dp.	Dia.	Working Orientation	Flange Dia.		Each
Steel Ball







	Zinc-Plated Steel Housing

	1"	125	1/4" @ 65 lb.	13/16"	5/8"	1 11/16"	Ball Up	1 31/32"	6602K44	000000


	Stainless Steel Ball







					Stainless Steel Housing

					1"	125	1/4" @ 65 lb.	13/16"	5/8"	1 11/16"	Ball Up	1 31/32"	6602K47	00000