2 1/4" Wide Rollers | McMaster-Carr

Also known as yoke-style cam followers, these rollers have more mounting flexibility than threaded track rollers. They're typically mounted onto a shaft or clevis rod end. Rollers are for use with Angle Rails for V-Groove Track Rollers. They handle radial and thrust (top and side) loads and work well in dirty environments because debris falls off the angled rail. All rollers are permanently lubricated.

With Seal—Sealed rollers block out dust and other contaminants better than shielded rollers, but they hold more heat. Their seals also help retain lubricant.

	Roller				Groove			Load Capacity, lb.
	Dia.	Wd.	For Shaft Dia.	Overall Wd.	Wd.	Dp.	Max. Rotation Speed	Static Radial	Dynamic Radial	Static Thrust	Max. Temp., ° F	Bearing Type		Each
Steel V-Groove Rollers With Seal



		5 1/2"	2 1/4"	1 1/4"	2 5/16"	1 1/2"	3/4"	Not Rated	27,200	17,000	13,000	225	Tapered Roller Bearing	6321K63	0000000

High-Load Shaft-Mount Track Rollers


With Seal

With a double row of cylindrical roller bearings, these rollers provide the highest combination of speed and dynamic radial load ratings of any shaft-mount track roller we offer. Also known as yoke-style cam followers, these rollers have more mounting flexibility than threaded track rollers. They're typically mounted onto a shaft or clevis rod end.

With Seal—Rollers with seal are permanently lubricated and have end seals to retain lubricant and protect rolling elements from dirt and contamination.

	Roller					Load Capacity, lb.
	Dia.	Wd.	For Shaft Dia.	Overall Wd.	Max. Rotation Speed, rpm	Static Radial	Dynamic Radial	Max. Temp., ° F	Bearing Type	ID	ID Tolerance		Each
Steel Flat Rollers With Seal



		4"	2 1/4"	1 1/4"	2 5/16"	2,600	68,000	45,600	250	Cylindrical	1.25"	1.249" to 1.25"	3670K18	0000000

Shaft-Mount Track Rollers

Also known as yoke-style cam followers, these rollers have more mounting flexibility than threaded track rollers. They're typically mounted onto a shaft or clevis rod end. Lubricate rollers through a hole and groove in the inner ring.

With Seal—Rollers with seal have end seals to protect rolling elements from dirt and contamination.

	Roller					Load Capacity, lb.
	Dia.	Wd.	For Shaft Dia.	Overall Wd.	Max. Rotation Speed, rpm	Static Radial	Dynamic Radial	Max. Temp., ° F	Bearing Type	ID	ID Tolerance		Each
Black-Oxide Steel Flat Rollers With Seal



		4"	2 1/4"	1 1/4"	2 5/16"	700	89,000	29,000	220	Needle	1 1/4"	-0.0005" to 0.0001"	6831K72	0000000

High-Load Threaded Track Rollers


Black-Oxide Steel	Black-Oxide Steel

With a double row of cylindrical roller bearings, these rollers provide the highest combination of speed and dynamic radial load ratings of any threaded track roller we offer. Also known as cam followers, track rollers support loads while guiding and positioning work. Thread the stud directly into a component or secure with a nut for through-hole mounting. All rollers are permanently lubricated.

Crowned Roller Profile—Crowned rollers have a slight curve, invisible to the naked eye, which helps them stay centered on surfaces that are slightly misaligned or not perfectly flat.

With Seal—Rollers with seal have an end seal to protect the rolling elements from dirt and contamination.

	Roller		Stud		Thread		Shoulder			Load Capacity, lb.
	Dia.	Wd.	Dia.	Lg.	Size	Lg.	Dia.	Lg.	Max. Rotation Speed, rpm	Static Radial	Dynamic Radial	Max. Temp., ° F	Bearing Type	Includes		Each
Black-Oxide Steel Flat Rollers With Seal







				Hex Roller-Head Drive

				4"	2 1/4"	2"	3 1/2"	2"-12	1 1/2"	2 35/64"	1/16"	820	71,000	31,000	245	Needle	Mounting Hardware	3643K55	0000000


				Black-Oxide Steel Crowned Rollers With Seal







								Hex Roller-Head Drive

								4"	2 1/4"	2"	3 1/2"	2"-12	1 1/2"	2 35/64"	1/16"	820	71,000	31,000	245	Needle	Mounting Hardware	3643K79	000000

Threaded Track Rollers

Also known as cam followers, track rollers support loads while guiding and positioning work. Thread the stud directly into a component or secure with a nut for through-hole mounting.

Crowned Roller Profile—Crowned rollers have a slight curve, which is invisible to the naked eye, to stay centered on surfaces that are not perfectly aligned and/or not perfectly flat.

With Seal—Rollers with seal have end seals to protect rolling elements from dirt and contamination.

	Roller		Stud		Thread		Shoulder			Load Capacity, lb.
	Dia.	Wd.	Dia.	Lg.	Size	Lg.	Dia.	Lg.	Max. Rotation Speed, rpm	Static Radial	Dynamic Radial	Max. Temp., ° F	Bearing Type	Includes		Each
Steel Flat Rollers With Seal







				Hex Roller-Head Drive

				4"	2 1/4"	1 1/2"	3 1/2"	1 1/2"-12	1 1/2"	2 5/8"	1/32"	1,300	70,000	30,000	250	Needle	Mounting Hardware	3652K27	0000000


				Steel Crowned Rollers With Seal







								Hex Roller-Head Drive

								4"	2 1/4"	1 1/2"	3 1/2"	1 1/2"-12	1 1/2"	2 5/8"	1/32"	1,300	70,000	30,000	250	Needle	Mounting Hardware	3652K41	000000

Flanged Shaft-Mount Track Rollers

Shaft-mount track rollers have more mounting flexibility than threaded track rollers. Because they’re flanged, they can handle both radial and thrust (top and side) loads. The flange also provides guidance and helps rollers stay on track. All are permanently lubricated and have end seals to retain lubricant and protect rolling elements from dirt and contamination.

	Roller		Shoulder		Flange					Load Capacity
	Dia.	Wd.	Dia.	Lg.	OD	Thick.	For Shaft Dia.	Overall Wd.	Max. Rotation Speed, rpm	Static Radial, lb.	Dynamic Radial	Static Thrust, lb.	Max. Temp., ° F	Bearing Type		Each
Steel Flat Rollers With Seal



		4"	2 1/4"	2"	1/32"	4 15/16"	19/32"	1 1/4"	2 5/16"	2,100	27,200	Not Rated	13,100	225	Tapered Roller Bearing	6321K83	0000000

Thrust-Load-Rated Shaft-Mount Track Rollers

These rollers are rated to handle radial and thrust (top and side) loads simultaneously. Also known as yoke-style cam followers, they have more mounting flexibility than threaded track rollers. They're typically mounted onto a shaft or clevis rod end. All rollers are permanently lubricated and have end seals to retain lubricant and protect rolling elements from dirt and contamination.

	Roller					Load Capacity, lb.
	Dia.	Wd.	For Shaft Dia.	Overall Wd.	Max. Rotation Speed, rpm	Static Radial	Dynamic Radial	Static Thrust	Max. Temp., ° F	Bearing Type	ID		Each
Black-Oxide Steel Flat Rollers With Seal



		4"	2 1/4"	1 1/4"	2 5/16"	2,100	27,200	18,600	15,400	250	Tapered Roller Bearing	1.25"	6321K35	0000000