McMaster-Carr

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	System of Measurement System of Measurement	Show

Metric

	System of Measurement System of Measurement	Hide

Inch

Metric

	Thread Size Thread Size

	Mount Type Mount Type


Bushing	Press Fit

Screw	Stem

Threaded Hole	Threaded Stud

	Stem Thread Size Stem Thread Size

M12

M16

M20

	Material Material

	Capacity per Caster Capacity per Caster

Less than 1,000 lbs.

1,000 to 1,999 lbs.

	Track Roller Type Track Roller Type


Round	V-Groove

	Roller Diameter Roller Diameter

	Stem Type Stem Type

	Threaded

	Wheel Diameter Wheel Diameter

	Roller Profile Roller Profile


Flat	V

Crowned

	Roller Material Roller Material

Steel

Plastic

Stainless Steel

	For Maximum Belt Width For Maximum Belt Width

	For Shaft Diameter For Shaft Diameter

	Head Diameter Head Diameter

	Length Length

	Thread Pitch Thread Pitch

	Stud Diameter Stud Diameter

	Number of Teeth Number of Teeth

10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
30
32
34
36
40
42
44
45
46
48
56
60
65
72
80
90
100
110
120
130

	For Belt Trade Size For Belt Trade Size

	Roller Width Roller Width

	Head Type Head Type


Thumb	Headless

Socket

	Pitch Pitch

1,541 Products

Material Handling

Wheels

Mount these wheels on an axle or use to replace a damaged wheel on a caster.

Casters

Choose from rigid and swivel styles in a variety of wheel materials and mounting options.

Leveling Casters

Adjust the leveling pad to keep your equipment stationary and compensate for uneven floors.

Ball Transfers

Pulleys for Wire Rope—For Lifting

Use the bore to mount these pulleys on a shaft. These pulleys are also known as sheaves.

Power Transmission

Track Rollers

Also known as cam followers, track rollers support loads while guiding and positioning work.

Track Rollers and Guide Rails

Similar to those found in a garage door system, these stud-mount track rollers ride inside a rail.

Belts and Pulleys

Better than chain in high-speed applications, belts and pulleys are also quiet, smooth-running, and don’t require lubrication.

Idler Sprockets for Metric Roller Chain

Keep constant tension on your drive with these sprockets that press against your metric ISO roller chain to take up slack and reduce wear and vibration.

Hex Flanged Eccentric Bushings

Often used with V-groove wheels or track roller carriages, these off-center bushings create precise mounting clearance.

Building and Machinery Hardware

Knobs

Knobs provide a secure grip to position, tighten, and hold fixtures, equipment, and machinery.

T-Slotted Framing and Fittings

Configure full-size machine guards, enclosures, carts, workstations, and more with standard T-slotted framing and fittings. This framing has continuous T-slots for attaching fittings.

Roller Track for Doors

Combine track, mounting brackets, and hangers to create a system for hanging doors.

Other Wheels

Distance-Measuring Wheels

Roll these wheels along a surface to measure distances up to 99,999 feet.

Screws and Bolts

Knurled-Head Thumb Nuts

The head is knurled for a slip-resistant controlled adjustment.

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