Shaft Attachments | McMaster-Carr

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Shaft Diameter

Width

Length

Screw Size

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Shaft Type

Round with Support Rail

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Compliant with Exemptions

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

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Color

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For Use With

Ball Bearing Housings

Ball Bearing Outer Rings

Bases

Bench Grinder Wheels

Bench Grinders

Bench-Top Cutoff Saws

Clog-Resistant Flat-Edge Roller Chain

Dies

Diluted Salt Solutions

Finish

Chromate Conversion Coated

Chrome Plated

Corrosion-Resistant Coated

Dyed

Enamel Coated

Galvanized

Hot-Dipped Galvanized

Magnesium Phosphate Coated

Melamine Coated

Neoprene Coated

Neoprene/Nylon Coated

Number of Teeth

Maximum Temperature

69,113 Products

Power Transmission

Shaft Collars

Hold and position parts on a shaft, or limit shaft movement

2,723 products

Linear Shaft Supports

Support linear shafts to prevent bending and rolling under loads

164 products

Rotary Shafts

Pair with gears, sprockets, and bearings to transmit rotary motion

42 products

Idler Shafts

Support idler sprockets and pulleys in tensioning applications

28 products

Flexible Shaft Couplings

Connect two shafts that are misaligned to transfer rotary motion from one to the other

1,632 products

Pulley and Sprocket Bushings

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

721 products

Flat Belt Drive Pulleys

Pair with a flat belt to transfer motion from a rotating shaft

25 products

Machinable Shaft Ends

Mill custom pulleys, threaded hubs, sprockets, collars, and sensor targets and mount them to shafts

56 products

Shaft Adapters

Increase or reduce your shaft's diameter to fit equipment, or replace damaged shaft ends

54 products

Bushing-Bore Hubs

Weld onto sprockets and pulleys to create a bushing mount

20 products

Rigid Shaft Couplings

Join two shafts that are aligned and handle higher torque than flexible shaft couplings

696 products

Drive Sprockets

Mount directly onto a shaft to transmit rotary motion and torque

3,671 products

Bore Reducers

Adapt the bore of a component to a smaller size for mounting on a shaft

31 products

Timing Belt Idler Pulleys

Add to your timing belt setup to minimize vibration and keep belts from wearing out

24 products

V-Belt Drive Pulleys

Pair with a V-belt to transfer motion from a rotating shaft

572 products

Flat Belt Idler Pulleys

Spin freely on built-in bearings to reduce wear and vibration on flat belts

31 products

Rigid Shaft Coupling Covers

Shield rigid shaft couplings from dirt, water, and lubricants to extend their life

13 products

U-Joints

Transfer torque between shafts at an angle; handle more torque and misalignment than flexible shafts

181 products

Flexible Shafts

Snake around curves and obstructions to transmit rotary motion along any path

41 products

Chain and Belt Torque Limiters

Prevent chain or belt damage from overloading; loads above the set torque trigger a stop

109 products

Round Belt Idler Pulleys

Spin freely on built-in bearings to reduce wear and vibration on round belts

21 products

Timing Belt Pulley Stock

Machine your own timing belt pulleys to fit an exact width and shaft diameter

17 products

Timing Belt Drive Pulleys

Pair with a timing belt to keep your drive system in sync

1,261 products

V-Belt Idler Pulleys

Spin freely on built-in bearings to reduce wear and vibration on V-belts

14 products

Idler Sprockets

Press against your chain to take up slack and reduce wear and vibration

85 products

Round Belt Drive Pulleys

Mount directly onto a shaft and pair with round belts to transmit rotary motion and torque

15 products

Thrust Bearings

Support loads parallel to the shaft with plain, ball, or roller bearings

1,170 products

Linear Bearings

Minimize friction as parts move along a shaft

816 products

Ball Bearings

Create less friction than other bearings for use at high speeds

2,160 products

Bearing Housings

Mount your own bearings in place

64 products

Bearing Adapter Sleeves

Close gaps between your bearing and shaft for a tight fit

29 products

Roller Bearings

Support higher loads than ball bearings, but run at lower speeds

439 products

Mounted Bearings

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

1,164 products

Bearing Nuts

Hold bearings, bushings, pulleys, and gears in place on threaded shafts and spindles

412 products

Linear Bearing Housings

Hold linear ball or sleeve bearings by sliding them in and securing with retaining rings

22 products

Roller Bearing Shaft Liners

Adapt precision needle-roller bearings for use on unhardened, unground shafts

30 products

Thrust Roller Bearing Washers

Adapt needle-roller thrust bearings for use on unhardened, unground surfaces

102 products

Sleeve Bearings

With no moving parts, the plainest type of bearing

3,404 products

Pivot Bearings

Best for applications that require small, precise oscillating motion with limited twisting

20 products

Linear Bearing Brakes

Lock bearings in place on a shaft for precise positioning

10 products

Bearing Lock Washers

Lock bearing nuts in place to prevent loosening due to vibration

103 products

Flanged Sleeve Bearings

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

2,012 products

Miter Gears

Connect shafts at a right angle without changing speed or torque

74 products

Ratchet Gears and Pawls

Transmit motion in one direction and stop it in the other

39 products

Spur Gear Stock

Machine your own gears to an exact face width and shaft diameter

18 products

Spur Gears

The simplest type of gear for transferring motion, with straight, parallel teeth

706 products

Bevel Gears

Reduce speed while transmitting motion at a right angle

48 products

Worm Gears

Reduce speed while transferring motion at a right angle in only one direction

96 products

Helical Gears

Curved teeth stay in contact longer to transmit heavier loads at higher speeds than spur gears

32 products

Internal Spur Gears

Teeth on the inside mesh with standard spur gears to save space

10 products

Clutches

Start and stop the transmission of power to machinery

58 products

Brakes

Control how much and how quickly your drive system slows down

7 products

Torque Limiters

Keep torque at or below a set limit to control tension or braking or protect machinery from overload

127 products

Clutch/Brakes

Control when to transmit power with a clutch and when to hold a load in place with a brake

5 products

Drive Rollers

Transmit power from motors to systems like conveyors; also known as contact wheels and feed rollers

279 products

Idler Rollers

Guide boxes and parts as they pass through conveyor systems

99 products

Track Rollers

Support and carry objects as they move along conveyor systems

160 products

Sleeve Splines and Bearings

Combine sleeve splines and bearings to create linear and rotary motion systems

21 products

Idler/Drive Rollers

Spin freely in one direction on conveyor systems and lock to transmit power in the other direction

6 products

Lead Screw Collars

Position components and limit travel along a lead screw

55 products

Precision Lead Screws and Nuts

Pair with a motor for accurate starts and stops in automated motion and positioning applications

434 products

End Supports for Ball Screws and Precision Lead Screws

Brace and secure the ends of ball screws and precision lead screws

16 products

Hydraulic Cylinder Seals

Replace seals on the piston or rod end of hydraulic cylinders

36 products

Speed Limiters

Control the speed of movement for attached components such as doors, panels, and drill presses

33 products

Shaft Collar Adapters

Sized specifically to adapt standard shaft collars to pipe, creating a tight fit

12 products

Ball Screw/Splines and Bearings

Transmit rotary power, move loads along the shaft, or do both at once

3 products

Ball Splines and Bearings

Combine ball splines and bearings to create linear and rotary motion systems

51 products

Lead Screw Nuts

Mate with lead screws to move components in a straight line

335 products

Electric Slides

Move parts with precision in electronics, robotics, and other automated processes

30 products

Linear Drive Nuts

Create a linear positioning system on a rotary shaft without a lead screw

3 products

Fastening and Joining

Washers

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

5,182 products

Lock Washers

Resist vibration to prevent fasteners from loosening

1,659 products

Sealing Washers

Prevent fluids from leaking around fasteners

752 products

Cushioning Washers

Cushion joints to dampen vibration and protect them from wear

167 products

Leveling Washers

Curved or tapered to compensate for uneven mounting surfaces

265 products

Finishing Washers

Screw heads sit flush to prevent snagging and to create a neat, finished appearance

156 products

Insulating Washers

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

277 products

Cross-Bracing Washers

Connect cross-bracing rods or cables to structural beams; also known as hillside washers

20 products

Retaining Rings

Hold components on a shaft

2,363 products

Machine Key Stock

Cut a custom length to transfer torque from shafts to components such as gears and sprockets

824 products

Threaded Rod Collars

Hold and position parts on a threaded rod

76 products

Shims

Align and space components on shafts, or level machinery, cabinets, and doors

2,867 products

Push Nuts

Press onto threads for a light duty hold that’s faster to install than typical nuts

17 products

Machine Keys

Transmit torque from rotating shafts to gears, sprockets, and other machine parts

1,014 products

Magnets

Attract or repel metal objects to hang, secure, or position them

420 products

Driver Extension Adapters

Create a tool that’s as long as you need to reach deeply recessed fasteners

44 products

Material Handling

Pulleys

Mount or suspend to guide wire rope for lifting and pulling loads

348 products

Wheels

Move objects with ease

670 products

Wheel Bearings

Reduce friction between the axle and the wheel for smooth movement

29 products

Wheel Reducer Bushings

Reduce the inside diameter of a bearing to fit a particular axle size

20 products

Conveyor Belt Take-Up Bearings

Use with take-up frames to adjust tension on conveyor belts

14 products

Conveyor Belt Drive Sprockets

Transmit power to chain belting to keep it running smoothly

23 products

Conveyor Belt Idler Pulleys

Keep chain belts moving without sagging

8 products

Skate Wheels

Replace wheels on skate wheel conveyors or add wheels for a custom setup

67 products

Conveyor Belt Pulleys

Replace pulleys on conveyor belts or build new conveyor belts

232 products

Conveyor Belt Spool Clips

Clamp onto conveyor shafts to keep spools from slipping to protect belts from wear

1 product

Conveyor Belt Spools

Replace the spools that hold round belts in place on motor-operated conveyors

8 products

Conveyor Roller Bearings

Replace bearings on conveyor rollers, or press into tubing or pipe to create a roller

39 products

Mesh Sleeves

Stretch around items like shafts and threaded parts to shield them from scratching and chipping

23 products

Tie-Down Washers

Angled sides align and hold tie-down straps

5 products

Fabricating and Machining

Polisher Arbor Extensions

Lengthen your polisher's reach to access deep grooves and tight spots

1 product

Motor Shaft Arbors

Mount abrasive discs to the shafts of bench-top motors, grinders, and buffers

8 products

Wheel Brush Arbor Hole Reducers

Adjust arbor hole size so it'll fit the shaft of your tool

9 products

Flap Wheel Arbor Hole Reducers

Reduce the arbor hole size on flap wheels so they'll fit the shaft of your tool

2 products

Drill Bushings

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

4,046 products

Die Grinder Drill Attachments

Convert bench-mount motors and drills into flexible-shaft grinders

1 product

Rotary Tool Sanding Sleeves

Pair with rotary tools to smooth wood, fiberglass, and rubber or remove rust from metal

1 product

Buffing and Polishing Wheel Chucks

Attach to the shaft of your grinder or buffer to hold wheels with a shank

1 product

Slotted Bushings

Pair with a standard bushing to prevent alignment pins from binding in your fixture

34 products

Rotary Tool Cutoff Wheels

Replace the cutoff wheel on your Dremel rotary tool

34 products

Grinding Cones

For corners and the inside of castings, remove large amounts of material and leave a rough surface

42 products

Rotary Tool Shafts

Pair with rotary tools to grind, sand, finish, and polish corners and other tight spots

1 product

Buffing and Polishing Wheels

Remove surface imperfections to achieve a precise, flat finish

164 products

Buffing and Polishing Wheel Spindles

Mount wheels to your tool’s shaft, collet, or drill chuck

12 products

Cutoff Wheels

Install in grinders to cut through metal, concrete, and ceramics

326 products

Die Grinders

Attach bits and burs to grind, deburr, and finish material

7 products

Rotary Tool Accessory Kits

Complete a wide range of cutting, grinding, and sanding tasks with your rotary tool

10 products

Drill Bushing Sleeves

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

59 products

Grinding Wheels

Add to grinders to remove material from work surfaces using abrasion

633 products

Grinding Wheel Reducer Bushings

Connect grinding wheels to shanks with a smaller diameter

3 products

Rotary Tool Grips

Attach to your rotary tool to engrave, etch, carve, and polish with precise control

1 product

Drill Bushing Installation Tools

Get a good grip to press removable drill bushings into fixture plates

9 products

Buffing and Polishing Pads

Remove imperfections and apply protective coatings on delicate surfaces

38 products

Die Bushings

Guide pins and punches in molds and stamping dies or reduce friction between ejector pins and plates

102 products

Saw Blade Bushings

Shrink the diameter of your saw blade's arbor hole to fit your saw's arbor

7 products

Sanding Drum and Sleeve Kits

Assortments include a variety of sanding drums and sleeves to shape and deburr internal surfaces

9 products

Backup Pads

Attach discs to power tools and reinforce the discs

4 products

Sanding Discs

Add to sanders, floor buffers, and other tools to smooth out workpieces and remove paint and rust

1,985 products

Sanding Sleeves

Use with grinders to shape, deburr, and sand edges and internal surfaces

312 products

Sanding Belt Wheels

Hold sanding belts in place on grinders

26 products

Cutoff Saw Wheels

Replace the wheel on your cutoff saw

82 products

Spiral Saw Cutoff Wheels

Attach to your RotoZip spiral saw to make straight cuts

3 products

Cartridge Sanding Rolls

As the outer sanding surface wears away, new abrasive is exposed

125 products

Rotary Sanding Pads

Reach into pipes, tubes, corners, and slots to smooth their surfaces and remove paint and rust

51 products

Clamp Holding Washers

Replace worn washers on open-arm toggle clamps to keep holding screws in place

12 products

Chain Saw Sharpener Wheels

Pair with chain saw sharpeners to sharpen your chain's teeth and set cut depth

3 products

Retaining Nuts for Backup Pads

Thread onto your tool’s arbor to hold a sanding disc against the backup pad

3 products

Fluid Handling

Mixer Propellers

Replace the propellers on mixers

172 products

Mixer Clamps

Mount mixers to stands, pipes, or tank rims

3 products

Mixer Attachments

Connect to drills, mixers, and other power tools to blend substances at high speeds

23 products

Mixer Blades

Pair with mixers to slice through solid particles in slurries

15 products

Mixer Chucks

Quickly swap out shafts and attachments on mixers

5 products

Sealing

Cord Stock

Cut to length to create customized seals

470 products

Backup Rings

Extend the life of O-rings and improve their performance under high pressure

360 products

Spring-Loaded Seals

Seal rods and pistons with a wider range of temperature and chemical resistance than U-cup seals

54 products

Cushioning Seals

Reduce wear and noise in air-powered cylinders by blocking the piston from hitting the cylinder body

5 products

Shaft Seals

Prevent leaks in motors, pumps, and gearboxes

533 products

U-Cup Seals

With a lip on both the inside and outside edges, they can be used for sealing rods and pistons

198 products

Shaft Repair Sleeves

Cover worn shafts with a smooth and protective sealing surface without machining

21 products

Rod Seals

Maintain pressure inside cylinders and prevent fluid leaks

50 products

Buffering Seals

Protect hydraulic cylinders from pressure spikes and shock in high-pressure applications

22 products

Rod Wipers

Scrape dirt off rods to keep the inside of cylinders clean

109 products

O-Rings

Fit snugly into a groove between parts to create a leak-resistant seal

13,870 products

Building and Machinery Hardware

Hand Wheels

Rotate to adjust machinery, valves, drill presses, and other equipment

336 products

Machine Handles

Arms give you extra leverage to secure and position jigs, fixtures, and other equipment

33 products

Handle Nuts

Attach to threaded shafts to quickly turn the shafts by hand

52 products

Protective Caps

Protect just about anything, including pipe, flanges, screws, and posts

24 products

Grommets

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

24 products

Bellows

Prevent dust and debris from damaging moving parts

656 products

Slip-On Framing Stop Collars

Prevent slip-on fittings from moving too far along rails and support fittings under heavy loads

6 products

Measuring and Inspecting

Shaft Alignment Kits

Confirm that shafts are aligned or measure the degree of their misalignment

9 products

Position Indicators

Track components on rotating spindles or lead screws to help adjust machinery quickly and precisely

71 products

Electrical Power, Networking, and Controlling

Battery-Terminal Washers

Stop battery acid fumes from corroding terminal posts

1 product

Electrical-Terminal Washers

Prevent wires from slipping out from under screw heads to keep electrical connections intact

6 products

Containers, Storage, and Furniture

Spools

Store twine, wire, rope, and chain

43 products

Sanding Abrasive Dispensers

Organize your sanding rolls so they're ready to grab and go

3 products

Heating, Ventilation, and Air Conditioning

Fans

Blow and direct air to keep spaces and equipment cool and ventilated

Move air for equipment cooling, material conveying, drying, ventilating, and exhausting

52 products

Safety Equipment

Rotary Shaft Covers

Protect exposed rotary shafts from debris and reduce the chance of injury

4 products