Top Hats | McMaster-Carr

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System of Measurement

Shaft Diameter

Length

Plain Bearing Type

Material

Flange OD

For Housing ID

Flange Thickness

Shaft Mount Type

Screw Size

Lubrication

For Load Direction

Combined Radial and Thrust

Drill Bit Size

Color

Maximum Temperature

RoHS

Compliant with Exemptions

Not Compliant

DFARS Specialty Metals

Compliant

Exempt

Not Compliant

Export Control Classification Number (ECCN)

REACH

Dynamic Radial Load Capacity @ Speed

Performance

Electrically Insulating

Installation Permanence

Permanent

Removable

Dynamic Thrust Load Capacity @ Speed

3,580 Products

Power Transmission

Flanged Sleeve Bearings

A sleeve and thrust bearing in one to support both parallel and perpendicular loads

1,955 products

Sleeve Bearings

With no moving parts, the plainest type of bearing

46 products

Mounted Bearings

Ball, roller, and sleeve bearings ready to bolt in place

16 products

Pulley and Sprocket Bushings

Mount between a rotating shaft and equipment to secure the shaft and reduce vibration

20 products

Fastening and Joining

Washers

Nearly every size and shape imaginable, from flat washers to clipped to curved

11 products

Insulating Washers

Isolate screws from electrical current and prevent corrosion from mating different metals

180 products

Building and Machinery Hardware

Bumpers

Absorb impact to protect equipment and surfaces from dents and scuffs

142 products

Grommets

Protect wire, cable, and cords from holes with sharp or rough edges

81 products

Vibration-Damping Mounts

Attach to machinery to reduce vibration and noise and extend service life

44 products

Fabricating and Machining

Drill Bushings

Fit in holes to guide drill bits and other cutting tools for precise and repeatable holes and cuts

964 products

Drill Bushing Sleeves

Press into your jig fixture so you can swap different bushings in and out without causing wear

15 products

Heating, Ventilation, and Air Conditioning

Duct and Duct Fittings

Circulate air through HVAC systems using round, rectangular, and fabric duct

20 products

Chimney Pipe and Fittings

Exhaust hot air and fumes from boilers, furnaces, and stoves

16 products

Electrical

Heat-Shrink Tubing

Apply heat to seal and insulate electrical wiring and connections

3 products

Fluid Handling

Pipe and Pipe Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases through your facility

6 products