20mm Wide Rollers | McMaster-Carr

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







				Hex Roller-Head Drive

				40	20	18	36.5	M18 × 1.5 mm	19	27	0.8	3,300	7,200	4,300	250	Needle	1470T632	0000000


				Black-Oxide Steel Crowned Rollers With Seal







								Hex Roller-Head Drive

								40	20	18	36.5	M18 × 1.5 mm	19	27	0.8	3,300	7,200	4,300	250	Needle	1470T631	000000

High-Load Shaft-Mount Track Rollers


Without 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.

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.

Without Seal—Lubricate rollers without seal through a hole and groove in the inner ring.

	Roller, mm					Load Capacity, lb.
	Dia.	Wd.	For Shaft Dia., mm	Overall Wd., mm	Max. Rotation Speed, rpm	Static Radial	Dynamic Radial	Max. Temp., ° F	Bearing Type	ID, mm	ID Tolerance, mm		Each
Steel Flat Rollers Without Seal



		40	20	17	21	240	6,900	5,600	245	Cylindrical	17	-8 to 0	3670K27	0000000


		47	20	17	21	240	6,900	5,600	245	Cylindrical	17	-8 to 0	3670K28	000000


		Steel Crowned Rollers Without Seal



				40	20	17	21	240	6,900	5,600	245	Cylindrical	17	-8 to 0	3670K31	000000

Flanged Threaded Track Rollers

Thread the stud directly into a component or secure with a nut for through-hole mounting. The flange provides guidance and helps the roller stay on track. All rollers are permanently lubricated and have end seals to retain lubricant and protect rolling elements from dirt and contamination.

	Roller, mm		Stud, mm		Thread		Shoulder, mm		Flange, mm			Load Capacity, lb.
	Dia.	Wd.	Dia.	Lg.	Size	Lg., mm	Dia.	Lg.	OD	Thick.	Max. Rotation Speed	Static Radial	Static Thrust	Max. Temp., ° F	Includes		Each
Steel Flat Rollers With Seal







				Ball Bearing

				26	20	10	23	M10 × 1 mm	13	13.1	0.8	35	5	Not Rated	220	130	225	Mounting Hardware	6318K111	000000

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.

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



		40	20	17	21	2,900	3,500	2,400	210	Needle	17	-0.008 to 0	8031N17	000000

Maintenance-Free Threaded Track Rollers

Because they never need to be relubricated, these rollers are a good choice for hard-to-reach places. 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. Some rollers have end seals to block dirt and contamination.

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.

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







				Hex Roller-Head Drive

				40	20	18	36	M18 × 1.5 mm	19	0.8	550	5,600	3,300	175	Needle	Mounting Hardware	1592T103	0000000

Tapered Stud Track Rollers

Roller

Grease

Fitting

Add a grease fitting to create a lubrication point.

Install these rollers in worn-out mounting holes or where you don’t have access to the back of the mounting hole. The stud is tapered, so you can quickly secure them in place with a set screw (not included) instead of a nut on the back like traditional rollers. Keep in mind, this reduces their radial capacity.

With Seal—Rollers with a seal protect rolling elements from dirt and contamination better than shielded rollers, but they do hold more heat. The seal also helps retain lubrication.

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







				Slotted Roller-Head Drive

				40	20	18	25	32	0.8	5,900	5,600	3,300	175	Needle	4227N17	000000	4227N19	000000