Bushings for 55mm Shafts

Note: Dynamic load capacity is the maximum load a bearing can withstand at a given shaft speed. If your application’s load and speed requirements are below the values listed, the bearing will work.

Metric Fiberglass-Backed PTFE Plastic Bearings
For Housing ID	Lg.	Dynamic Radial Load Cap.	Color	Temp. Range, °F		Each
For 55mm Shaft Dia.
65mm	40mm	18,000 lbs. @ 10 rpm	Gray	-145° to 320°	00000000	000000
65mm	50mm	22,550 lbs. @ 10 rpm	Gray	-145° to 320°	00000000	00000
65mm	70mm	31,550 lbs. @ 10 rpm	Gray	-145° to 320°	00000000	00000

Multipurpose Sleeve Bearings

These 660 leaded bronze bearings are strong, wear resistant, and excellent at handling shock loads. They’re sometimes called 932 bronze bearings.

Note: Dynamic load capacity is the maximum load a bearing can withstand at a given shaft speed. If your application’s load and speed requirements are below the values listed, the bearing will work.

For technical drawings and 3-D models, click on a part number.

Metric 660 Leaded Bronze Bearings
For Housing ID	Lg.	Dynamic Radial Load Capacity	Lubrication	Temperature Range, °F		Each
For 55mm Shaft Dia.
70mm	50mm	17,050 lbs. @ 30 rpm	Required	-350° to 450°	00000000	000000
70mm	75mm	25,550 lbs. @ 30 rpm	Required	-350° to 450°	00000000	00000
70mm	100mm	34,100 lbs. @ 30 rpm	Required	-350° to 450°	00000000	00000

Quick-Disconnect (QD) Bushings

Clamp On

The screw connections on these bushings easily mate to compatible quick-disconnect sprockets and pulleys. Bushings fit quick-disconnect (QD) sprockets and pulleys of the same bushing style. As you tighten the included screws, the bushing grips the shaft and pulls it into the sprocket or pulley.

For technical drawings and 3-D models, click on a part number.

		Keyway
For Shaft Dia.	Overall Wd.	Wd.	Dp.	Fastener Tightening Torque, in.-lbs.	Material	Includes		Each
Clamp On
E Style Bushing
55mm	76mm	16mm	4.3mm	720	Cast Iron	Clamping Screws	0000000	0000000
F Style Bushing
55mm	104mm	16mm	4.3mm	900	Cast Iron	Clamping Screws	0000000	000000
J Style Bushing
55mm	127mm	16mm	4.3mm	1,620	Cast Iron	Clamping Screws	00000000	000000
SF Style Bushing
55mm	64mm	16mm	4.3mm	360	Steel	Clamping Screws	0000000	00000
SK Style Bushing
55mm	55mm	16mm	4.3mm	180	Cast Iron	Clamping Screws	0000000	00000

Taper-Lock Bushings

Mount these hubless bushings flush into your sprocket or pulley for a slim profile with no protruding screws. They are for use with taper-lock sprockets of the same bushing style. As you tighten the included set screws, the bushing grips the shaft and pulls it into your sprocket or pulley.

For technical drawings and 3-D models, click on a part number.

		Keyway
For Shaft Dia.	Overall Wd.	Wd.	Dp.	Taper	Fastener Tightening Torque, in.-lbs.	Material	Includes		Each
3020 Style Bushing
55mm	51mm	16mm	4.3mm	8°	800	Steel	Set Screws	000000000	000000

Split-Tapered Bushings

Steel and Cast Iron

The tapered barrel on these bushings is split on both sides, allowing them to contract more tightly around the shaft than quick-disconnect and taper-lock bushings. They're for use with split-tapered sprockets and pulleys of the same bushing style. As you tighten the included screws, the bushing grips the shaft and pulls it into the sprocket or pulley.

Bushings with a machine key fit into a matching keyway on a sprocket or pulley for high-torque applications.

		Keyway
For Shaft Dia.	Overall Wd.	Wd.	Dp.	Taper	Fastener Tightening Torque, in.-lbs.		Each
Cast Iron
Q1 Style Bushing with Machine Key
55mm	2 1/2"	16mm	4mm	3°	348	00000000	000000
R1 Style Bushing with Machine Key
55mm	2 7/8"	16mm	4mm	3°	348	00000000	000000
R2 Style Bushing with Machine Key
55mm	4 7/8"	16mm	4mm	3°	348	00000000	000000

Self-Centering Screw-Clamp Bushings

A mounting flange prevents movement during tightening, so it's easy to center these bushings in your sprocket. They are also good for shock loads. When you tighten the included screws, the bushing's inner sleeve contracts onto the shaft and the outer sleeve expands to hold your sprocket, pulley, or gear. They can be mounted on shafts with or without keyways.

For Shaft Dia.	OD	Overall Wd.	Max. Torque, in.-lbs.	Fastener Tightening Torque, in.-lbs.	Material	Includes		Each
55mm	77mm	41mm	16,400	150	Steel	Clamping Screws	0000000	000000

Quick-Grip Screw-Clamp Bushings

Also known as Trantorque bushings, these tighten with a twist of the collar nut—no screws needed. As you tighten the collar nut, the inner sleeve contracts onto the shaft and the outer sleeve expands to hold your sprocket, pulley, or gear.

For technical drawings and 3-D models, click on a part number.

Zinc-Plated Steel
For Shaft Dia.	OD	Overall Wd.	Max. Torque, in.-lbs.		Each
55mm	80mm	95mm	14,600	0000000	0000000

Flush-Mount Screw-Clamp Bushings

Insert these bushings into the bore of your sprocket for flush or recessed mounting. They handle shock loads and have higher torque ratings than self-centering bushings. When you tighten the included clamping screws, the bushing's inner sleeve contracts onto the shaft and the outer sleeve expands to hold your sprocket, pulley, or gear. They can be mounted on shafts with or without keyways.

For technical drawings and 3-D models, click on a part number.

For Shaft Dia.	OD	Overall Wd.	Max. Torque, in.-lbs.	Fastener Tightening Torque, in.-lbs.	Material	Includes		Each
55mm	85mm	66mm	45,100	363	Steel	Clamping Screws	0000000	0000000

Set Screw Shaft Collars

Keep these shaft collars in place by tightening their set screw into the shaft. The tip of the screw digs in for a secure hold, but will mar the shaft’s surface. For maximum holding power, make sure the set screw material is harder than your shaft material. Use these shaft collars to position and retain power transmission components such as sprockets, pulleys, and bearings. You can also use them to limit the movement of a shaft.

Carbon steel collars are strong and wear resistant. Collars that are blue make it easy to identify metric collars at a glance. They’re tinted to match other blue metric fasteners.

303 stainless steel collars are corrosion resistant and highly machinable.

DIN 705 collars meet an international standard for shaft collar dimensions.

For technical drawings and 3-D models, click on a part number.

Metric

			Set Screw
For Shaft Dia., mm	OD, mm	Wd., mm	Type	No. Included	Specifications Met		Each
Carbon Steel
55	80	18	Hex Socket	2	DIN 705	0000000	000000
Blue Passivated Carbon Steel
55	80	18	Hex Socket	2	DIN 705	0000000	00000
303 Stainless Steel
55	80	18	Hex Socket	2	DIN 705	0000000	00000

Clamping Shaft Collars

These metal collars are stronger than plastic shaft collars. They clamp evenly around the shaft to create a strong, mar-free hold. To use, slide onto your shaft and tighten the clamping screw to secure.

Black-oxide steel collars have some corrosion resistance. 303 stainless steel collars have excellent corrosion resistance.

For technical drawings and 3-D models, click on a part number.

Metric

			Clamping Screw
For Shaft Dia., mm	OD, mm	Wd., mm	Type	No. Included		Each
Black-Oxide 1215 Carbon Steel
55	82	19	Socket Head Screw	1	000000000	000000
303 Stainless Steel
55	82	19	Socket Head Screw	1	00000000	000000

Quick-Release Clamping Shaft Collars

Installing and removing a collar is as easy as pushing down and lifting up a clamp lever. Collars clamp evenly around the shaft to create a strong, mar-free hold. All have a clamping screw to adjust lever tension. Made of anodized aluminum, they are lightweight with good corrosion resistance.

For technical drawings and 3-D models, click on a part number.

Metric

			Clamping Screw		Black Anodized 6061 Aluminum
For Shaft Dia.	OD	Wd.	Type	No. Included		Each
55mm	120mm	19mm	Socket Head Screw	1	00000000	000000

Clamping Two-Piece Shaft Collars

Without Keyway

These metal collars are stronger than plastic shaft collars. The two-piece design allows you to install them anywhere on a shaft without removing components or having access to the ends of the shaft. Collars clamp evenly around the shaft to create a strong, mar-free hold. Tighten the clamping screws to secure.

Black-oxide steel collars have some corrosion resistance. 303 stainless steel collars have excellent corrosion resistance.

For technical drawings and 3-D models, click on a part number.

Metric—Without Keyway

			Clamping Screw
For Shaft Dia., mm	OD, mm	Wd., mm	Type	No. Included		Each
Black-Oxide 1215 Carbon Steel
55	82	19	Socket Head Screw	2	0000000	000000
303 Stainless Steel
55	82	19	Socket Head Screw	2	0000000	000000

Clamping Two-Piece Shaft Collars with Wrench Flats

Use a wrench to rotate your drive shaft without marring or gouging the shaft. Fasten one of these collars onto your shaft, position a wrench on the collar’s wrench flats, and then rotate the entire shaft/collar assembly to adjust the shaft. The two-piece design allows you to install these collars anywhere on a shaft without removing components or having access to the ends of the shaft. Tighten the clamping screws to secure.

Black-oxide steel collars have some corrosion resistance. 303 stainless steel collars have excellent corrosion resistance.

For technical drawings and 3-D models, click on a part number.

Metric

				Clamping Screw
For Shaft Dia., mm	OD, mm	Wd., mm	Flat-to-Flat Ht., mm	Type	No. Included		Each
Black-Oxide 1215 Carbon Steel
55	82	19	77	Socket Head Screw	2	00000000	000000
303 Stainless Steel
55	82	19	77	Socket Head Screw	2	00000000	000000

Set Screw Two-Piece Shaft Collars

Tighten the set screw to bite into an unhardened shaft for a secure hold. The two-piece design allows you to install these collars anywhere on a shaft without removing components or having access to the ends of the shaft. Clamping screws provide extra grip.

Carbon steel collars are strong and wear resistant. Their black-oxide finish is somewhat corrosion resistant, but only in dry environments. Their dark color can be useful for matching other parts in your system.

303 stainless steel collars are corrosion resistant and highly machinable.

For technical drawings and 3-D models, click on a part number.

Metric

			Set Screw		Clamping Screw
For Shaft Dia., mm	OD, mm	Wd., mm	Type	No. Included	Type	No. Included		Each
Black-Oxide 1215 Carbon Steel
55	82	19	Hex Socket	1	Socket Head Screw	2	0000000	000000
303 Stainless Steel
55	82	19	Hex Socket	1	Socket Head Screw	2	0000000	000000

Weldable Two-Piece Shaft Collars

For Round Shafts

For Keyed Shafts

Install these collars anywhere on a shaft without removing components or having access to the ends of the shaft. Because they’re grade 1018 carbon steel, you can easily weld them to other components. Collars clamp evenly around the shaft to create a strong, mar-free hold. Tighten the clamping screws to secure.

For technical drawings and 3-D models, click on a part number.

Metric

			Keyway		Clamping Screw		1018 Carbon Steel
For Shaft Dia., mm	OD, mm	Wd., mm	Wd., mm	Dp., mm	Type	No. Included		Each
For Round Shafts
55	82	19	__	__	Socket Head Screw	2	00000000	000000
For Keyed Shafts
55	82	19	16	4.3	Socket Head Screw	2	00000000	00000

Set Screw Flexible Shaft Couplings

Hubs and Spider Shown Assembled

(Each Component Sold Separately)

Each hub includes a set screw (unless noted), which bites into your shaft to hold the coupling in place. Also known as Lovejoy® couplings, these three-piece couplings have a spider-shaped cushion between two hubs to reduce shock and handle minor shaft misalignment.

Buna-N spiders provide good vibration damping and chemical resistance. Hytrel spiders provide fair vibration damping and excellent chemical resistance.

For technical drawings and 3-D models, click on a part number.

Steel Hubs and Buna-N Rubber Spiders

						Buna-N Rubber Spiders
Steel Hubs								Misalignment Capability
Overall Lg., mm	OD, mm	For Motion Type	For Shaft Dia., mm		Each	Max. Speed, rpm	Max. Torque, in.-lbs.	Parallel	Angular	Temp. Range, °F		Each
124	115	Forward/Reverse, Start/Stop	55	0000000	0000000	5,000	1,725	0.015"	1°	-40° to 212°	0000000	000000
137	127	Forward/Reverse, Start/Stop	55	0000000	000000	4,200	2,340	0.015"	1°	-40° to 212°	0000000	00000

Steel Hubs and Hytrel Rubber Spiders

						Hytrel Rubber Spiders
Steel Hubs								Misalignment Capability
Overall Lg., mm	OD, mm	For Motion Type	For Shaft Dia., mm		Each	Max. Speed, rpm	Max. Torque, in.-lbs.	Parallel	Angular	Temp. Range, °F		Each
124	115	Forward/Reverse, Start/Stop	55	0000000	0000000	5,000	4,680	0.015"	0.5°	-55° to 245°	0000000	0000000
137	127	Forward/Reverse, Start/Stop	55	0000000	000000	4,200	6,225	0.015"	0.5°	-55° to 245°	0000000	000000

High-Torque Set Screw Flexible Shaft Couplings

(Each Component Sold Separately)

Hubs, Split Spider, and Split Spider Cover Shown Assembled

The thick split spider on these couplings can take on twice as much torque as standard spiders, extending the life of bearings, seals, and motors. They are often used to connect motors to pumps, mixers, large conveyors, and other high-torque equipment. To assemble a complete coupling, you will need two hubs, one split spider, and a split spider cover (all sold separately). They are also known as jaw couplings.

The hubs connect to your shaft with a set screw, which bites into the shaft and holds the hub in place. They are keyed and bored to standard ANSI/AGMA 9002 dimensions and tolerances, which means they fit snugly on standard shaft sizes. Spiders act as a cushion between the two hubs, reducing vibration and compensating for slight shaft misalignment. No need to remove hubs, disconnect shafts, or move equipment to replace worn split spiders—they are split along one side for easy installation and removal. The split spider cover sits on top of the spider to hold it in place, completing the coupling.

These split spiders are all urethane, which holds up to repeated abrasion and is difficult to tear. Spiders with a medium-soft hardness rating are the most common choice for these couplings. Their softness allows them to absorb the most vibration. Spiders with medium hardness rating can handle higher torque than the soft spiders, but are not as good at damping vibration. Spiders with a max. temperature of 350° F hold up better near ovens and other hot equipment.

For technical drawings and 3-D models, click on a part number.

Steel Hubs and Medium-Soft (Durometer 48D) Spiders

						Urethane Split Spiders
Steel Hubs								Misalignment Capability						Steel Spider Covers
Overall Lg.	OD	For Motion Type	For Shaft Dia.		Each	Max. Speed, rpm	Max. Torque, in.-lbs.	Parallel	Angular	Temp. Range, °F	Color		Each		Each
6 1/16"	3 33/64"	Forward/Reverse, Start/Stop	55mm	000000	0000000	6,000	7,065	0.038"	2°	-60° to 212°	Red	0000000	000000	0000000	000000

Steel Hubs and Medium (Durometer 60D) Spiders

						Urethane Split Spiders
Steel Hubs								Misalignment Capability						Steel Spider Covers
Overall Lg.	OD	For Motion Type	For Shaft Dia.		Each	Max. Speed, rpm	Max. Torque, in.-lbs.	Parallel	Angular	Temp. Range, °F	Color		Each		Each
6 1/16"	3 33/64"	Forward/Reverse, Start/Stop	55mm	000000	0000000	6,000	14,000	0.038"	2°	-60° to 212°	Blue	0000000	000000	0000000	000000

Steel Hubs and Medium (Durometer 60D) Spiders—350° F Max. Temp.

						Urethane Split Spiders
Steel Hubs								Misalignment Capability						Steel Spider Covers
Overall Lg.	OD	For Motion Type	For Shaft Dia.		Each	Max. Speed, rpm	Max. Torque, in.-lbs.	Parallel	Angular	Temp. Range, °F	Color		Each		Each
6 1/16"	3 33/64"	Forward/Reverse, Start/Stop	55mm	000000	0000000	6,000	14,000	0.038"	2°	-60° to 350°	White	0000000	0000000	0000000	000000

Over 48,000 metals now include traceable material certificates.

About Shaft Collars

About Plain Bearings

About Shaft Couplings

Chemical-Resistant Dry-Running Sleeve Bearings

Multipurpose Sleeve Bearings

Quick-Disconnect (QD) Bushings

Taper-Lock Bushings

Split-Tapered Bushings

Self-Centering Screw-Clamp Bushings

Quick-Grip Screw-Clamp Bushings

Flush-Mount Screw-Clamp Bushings

Set Screw Shaft Collars

Clamping Shaft Collars

Quick-Release Clamping Shaft Collars

Clamping Two-Piece Shaft Collars

Clamping Two-Piece Shaft Collars with Wrench Flats

Set Screw Two-Piece Shaft Collars

Weldable Two-Piece Shaft Collars

Set Screw Flexible Shaft Couplings

High-Torque Set Screw Flexible Shaft Couplings