2 1/2" OD Bearings | McMaster-Carr

					Radial Load Cap., lbs.
Bearing Trade Number	For Shaft Dia.	For Housing ID	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
R22	1 3/8"	2 1/2"	7/16"	Steel	3,550	2,300	10,500	Required	-20° to 230°	ABEC-1	000000000	000000

Shielded

					Radial Load Cap., lbs.
Bearing Trade Number	For Shaft Dia.	For Housing ID	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
R22-2Z	1 3/8"	2 1/2"	9/16"	Steel	3,550	2,300	6,300	Lubricated	-20° to 230°	ABEC-1	000000000	000000

Permanently Lubricated Ball Bearings

A solid polymer lubricant surrounds the balls, eliminating the need for additional lubrication. Because it's solid, the lubricant blocks out water and dust, extending the life of the bearing.

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

					Radial Load Cap., lbs.
Bearing Trade Number	For Shaft Dia.	For Housing ID	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
Open
R22	1 3/8"	2 1/2"	7/16"	Steel	2,750	2,000	6,500	Lubricated	10° to 200°	ABEC-1	0000000	000000

High-Load Ball Bearings

With a wider profile than standard ball bearings, these rugged bearings are good for handling heavy loads at low speeds.

Open bearings dissipate heat more efficiently than shielded and sealed bearings.

Shielded bearings block out dust and other contaminants, but do not dissipate heat as efficiently as open bearings.

Sealed bearings block out dust and other contaminants better than open and shielded bearings, but retain the most heat.

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

Open

					Radial Load Cap., lbs.
Bearing Trade Number	For Shaft Dia.	For Housing ID	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
1652	1 1/8"	2 1/2"	5/8"	Steel	3,850	2,100	5,000	Lubricated	-20° to 250°	Not Rated	0000000	000000
1654	1 1/4"	2 1/2"	5/8"	Steel	3,850	2,100	5,000	Lubricated	-20° to 250°	Not Rated	0000000	00000

Shielded

					Radial Load Cap., lbs.
Bearing Trade Number	For Shaft Dia.	For Housing ID	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
1652-2Z	1 1/8"	2 1/2"	5/8"	Steel	3,850	2,100	5,000	Lubricated	-20° to 250°	Not Rated	0000000	000000
1654-2Z	1 1/4"	2 1/2"	5/8"	Steel	3,850	2,100	5,000	Lubricated	-20° to 250°	Not Rated	0000000	00000

Sealed

					Radial Load Cap., lbs.
Bearing Trade Number	For Shaft Dia.	For Housing ID	Wd.	Ring Material	Dynamic	Static	Max. Speed, rpm	Lubrication	Temp. Range, °F	ABEC Rating		Each
1652-2RS	1 1/8"	2 1/2"	5/8"	Steel	3,850	2,100	5,000	Lubricated	-20° to 250°	Not Rated	0000000	000000
1654-2RS	1 1/4"	2 1/2"	5/8"	Steel	3,850	2,100	5,000	Lubricated	-20° to 250°	Not Rated	0000000	00000

Ultra-Thin Ball Bearings

Open

These bearings have twice as many contact points as angular-contact ball bearings. Fit onto large-diameter hollow shafts to run air and hydraulic lines, electrical wiring, and other components through moving parts in assemblies such as index and rotary tables, packaging equipment, and robotics.

Open bearings dissipate heat more efficiently than shielded bearings.

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

			Radial Load Cap., lbs.		Thrust Load Cap., lbs.		Moment Load Cap., ft.-lbs.
For Shaft Dia.	For Housing ID	Wd.	Dynamic	Static	Dynamic	Static	Dynamic	Static	Max. Speed, rpm	Lubrication	Contact Angle	Temp. Range, °F	ABEC Rating		Each
Steel Ring
Open
2"	2 1/2"	1/4"	510	680	790	1,700	35	60	1,500	Required	30°	-60° to 250°	ABEC-1F	0000000	0000000

Oil-Embedded Thrust Bearings

Startup friction causes these porous bronze bearings to release a thin layer of oil on the bearing’s surface. They are also known as Oilite® 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.

841 Bronze Bearings

For 1 7/16" Shaft Dia.
OD	Thick.	Dynamic Thrust Load Capacity	Lubrication	Lubricant	Temperature Range, °F		Each
2 1/2"	1/8"	6,550 lbs. @ 30 rpm	Lubricated	SAE 30 Oil	-35° to 300°	00000000	000000
For 1 1/2" Shaft Dia.
2 1/2"	1/8"	6,250 lbs. @ 30 rpm	Lubricated	SAE 30 Oil	-35° to 300°	00000000	0000

Ultra-Low-Friction Oil-Embedded Thrust Bearings

For applications with frequent starts and stops, the oil in these bearings contains particles of slippery PTFE that lubricate the bearing during startup.

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.

SAE 841 Bronze Bearings

For 1 1/2" Shaft Dia.
OD	Thick.	Dynamic Thrust Load Capacity	Lubrication	Lubricant	Temperature Range, °F		Each
2 1/2"	1/8"	6,250 lbs. @ 30 rpm	Lubricated	SAE 80 Oil with PTFE	10° to 220°	0000000	00000

High-Load Oil-Embedded Thrust Bearings

Increased iron content makes these bearings stronger and more resistant to shock loads than standard oil-embedded bearings; however they operate at lower speeds. Startup friction causes them to release a thin layer of oil on the bearing’s surface. Color is silver because of the iron.

Iron-copper bearings support heavier loads than 863 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.

863 Bronze Bearings

For 1 1/2" Shaft Dia.
OD	Thick.	Dynamic Thrust Load Capacity	Lubrication	Lubricant	Temperature Range, °F		Each
2 1/2"	1/8"	5,600 lbs. @ 30 rpm	Lubricated	SAE 90 Oil	-15° to 300°	0000000	00000

Iron-Copper Bearings

For 1 1/2" Shaft Dia.
OD	Thick.	Dynamic Thrust Load Capacity	Lubrication	Lubricant	Temperature Range, °F		Each
2 1/2"	1/8"	12,000 lbs. @ 30 rpm	Lubricated	SAE 90 Oil	-15° to 300°	0000000	00000

Light Duty Dry-Running Thrust Bearings

Use where high loads and speeds are not required.

Thermoplastic bearings are fiber reinforced and lubricant infused for good wear resistance and low friction with light and medium loads.

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.

Thermoplastic Blend Bearings
OD	Thick.	Dynamic Thrust Load Capacity	Color	Temperature Range, °F		Each
For 1 1/2" Shaft Dia.
2 1/2"	0.0585"	330 lbs. @ 30 rpm	Gray	-40° to 260°	0000000	00000

High-Temperature Dry-Running Thrust Bearings

841 Bronze

660 Leaded Bronze

Graphite provides a layer of dry lubrication that operates in high-temperature environments.

841 bronze bearings are porous and embedded with graphite. They handle higher temperatures than 660 leaded bronze bearings.

660 leaded bronze bearings are cast, making them strong, wear resistant, and excellent at handling shock loads. They are sometimes called 932 bronze bearings. Graphite plugs distribute lubricant along the bearing’s surface.

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.

841 Bearing Bronze Bearings
OD	Thick.	Dynamic Thrust Load Capacity	Temperature Range, °F		Each
For 1 1/2" Shaft Dia.
2 1/2"	1/8"	5,000 lbs. @ 30 rpm	-50° to 700°	0000000	00000
660 Leaded Bronze Bearings
For 1 1/2" Shaft Dia.
2 1/2"	1/8"	8,950 lbs. @ 30 rpm	-350° to 450°	0000000	00000

Multipurpose Thrust 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.

660 Leaded Bronze
OD	Thick.	Dynamic Thrust Load Capacity	Lubrication	Temperature Range, °F		Each
For 1 1/2" Shaft Dia.
2 1/2"	1/8"	12,000 lbs. @ 30 rpm	Required	-350° to 450°	0000000	00000

Corrosion-Resistant Thrust Bearings

The addition of iron and aluminum gives these bearings high strength and excellent corrosion resistance—making them suitable for use in marine and mining applications.

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.

954 Aluminum-Bronze Bearings
OD	Thick.	Dynamic Thrust Load Capacity	Lubrication	Temperature Range, °F		Each
For 1 1/2" Shaft Dia.
2 1/2"	1/8"	14,100 lbs. @ 30 rpm	Required	-350° to 500°	0000000	00000

Needle-Roller Thrust Bearings

Thinner rollers allow these bearings to fit in tighter spaces than tapered-roller thrust bearings. Because of the large contact area between the rollers and washers (not included), these bearings are great for medium to heavy duty, low-friction jobs. For use on hardened and ground surfaces.

Washers allow you to use the bearing on unhardened and unground surfaces.

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

Bearings

Bearing

			Thrust Load Cap., lbs.
For Shaft Dia.	OD	Thick.	Dynamic	Static	Max. Speed, rpm	Lubrication	For Shaft Surface Smoothness (Ra), microns	Temp. Range, °F		Each
Steel Rollers
Open
1 3/4"	2 1/2"	5/64"	5,600	30,100	4,400	Required	0.2	0° to 240°	0000000	00000

Washers

Washer

For Shaft Dia.	OD	Thick.	Washer Material		Each
1 3/4"	2 1/2"	0.032"	Steel	0000000	00000

Washers for Needle-Roller Thrust Bearings

Washer

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

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

For Shaft Dia.	OD	Thick.	Washer Material		Each
1 3/4"	2 1/2"	0.032"	Steel	0000000	00000
1 3/4"	2 1/2"	0.063"	Steel	00000000	0000
1 3/4"	2 1/2"	0.126"	Steel	00000000	0000

High-Speed Flange-Mounted Linear Sleeve Bearings

A ceramic liner makes high speeds as well as rapid acceleration and deceleration possible. The flange-mount design is good for vertical linear motion applications. Bearings are for use with round end-supported shafts and are self-aligning to compensate for shaft misalignment. End seals keep contaminants out.

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

	Overall											Mounting Holes
For Shaft Dia.	Lg.	Wd.	Ht.	Flange Thick.	Bolt Circle Dia.	OD	Dynamic Load Capacity	Static Load Capacity, lbs.	Shaft Clearance	Temperature Range, ° F	For Shaft Material	No. of	Dia.		Each
Self Aligning with 2° Misalignment Capability
Ceramic-Lined 6061 Aluminum Bearings with 6061 Aluminum Housing
1 1/4"	3 5/8"	3"	3"	1/2"	5 1/8"	2 1/2"	1,500 lbs. @ 100 fpm	16,000	0.0005"	-200° to 400°	Aluminum, Stainless Steel, Steel	4	9/32"	0000000	0000000

Flange-Mounted Linear Bearing Housings

For One Bearing

Slide up to two linear ball or sleeve bearings into these housings and secure them with the included internal retaining rings.

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

		Overall					Mounting Holes
For Bearing OD	For Max. Bearing Lg.	Lg.	Wd.	Ht.	Flange Thick.	OD	No. of	Dia.		Each
6061 Aluminum
For One Bearing
2"	2 5/8"	3 5/8"	3"	3"	1/2"	2 1/2"	4	9/32"	0000000	0000000

Sleeve Bearings for Conveyor Rollers

Sleeve bearings ride directly on the roller axle and have no moving parts to wear out. Use them to replace worn and damaged bearings or press-fit them into tubing or pipe to create a roller.

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

For Schedule 40 Pipe

White Acetal Plastic
For Pipe Size	OD	Flange OD	Cap., lbs.	O'all Wd.	Wd.	For Axle Shape	For Axle Dia.	Temp. Range, °F		Each
2 1/2	2.500"	2.900"	240	1.00"	0.70"	Round	1/2"	-40° to 180°	00000000	000000

Easy-to-Weld 4130 Alloy Steel Round Tubes

Yield Strength: See table
Hardness: See table
Heat Treatable: Yes
Max. Hardness After Heat Treatment: See table
Specifications Met: See table

4130 alloy steel has a low carbon content that provides good weldability. It's often used for gears, fasteners, and structural applications. These tubes meet military specifications and SAE dimensional standards.

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

Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.

0.095" Wall Thick. (-0.014" to 0.014" Tolerance)
OD	OD Tolerance	ID	Yield Strength	Hardness	Maximum Hardness After Heat Treatment	Specifications Met	Straightness Tolerance		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
2 1/2"	-0.010" to 0.010"	2.31"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	0.030" per 3 ft.	000000000	000000	000000	0000000
0.12" Wall Thick. (-0.018" to 0.018" Tolerance)
2 1/2"	-0.010" to 0.010"	2.26"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	0.030" per 3 ft.	000000000	00000	00000	000000
0.188" Wall Thick. (-0.028" to 0.028" Tolerance)
2 1/2"	-0.010" to 0.010"	2.124"	70,000 psi	Rockwell C20	Rockwell C49	MIL-T-6736, SAE AMS-T-6736, SAE AMS6360	0.030" per 3 ft.	000000000	00000	000000	000000

932 Bearing Bronze Tubes

Yield Strength: 18,000 psi
Hardness: Rockwell B35 (Soft)
Temper: M07
Heat Treatable: No
Specifications Met: ASTM B505

Offering excellent antifriction qualities, 932 bronze also offers good strength and wear resistance. It's also known as SAE 660 and is often used for bearings, bushings, and thrust washers.

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

Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.

1/4" Wall Thick.
OD	OD Tolerance Range	ID	ID Tolerance Range	Straightness Tolerance	Nonsparking Properties		3" Lg.	6 1/2" Lg.	13" Lg.
2 1/2"	0.03" to 0.134"	2"	-0.019" to -0.202"	.004" per inch	Nonsparking	00000000	000000	000000	0000000
3/8" Wall Thick.
2 1/2"	0.03" to 0.134"	1 3/4"	-0.019" to -0.202"	.004" per inch	Nonsparking	00000000	00000	00000	000000
1/2" Wall Thick.
2 1/2"	0.03" to 0.134"	1 1/2"	-0.019" to -0.202"	.004" per inch	Nonsparking	00000000	00000	00000	000000
5/8" Wall Thick.
2 1/2"	0.03" to 0.134"	1 1/4"	-0.019" to -0.202"	.004" per inch	Nonsparking	00000000	00000	00000	000000
3/4" Wall Thick.
2 1/2"	0.03" to 0.134"	1"	-0.019" to -0.202"	.004" per inch	Nonsparking	00000000	00000	000000	000000
7/8" Wall Thick.
2 1/2"	0.03" to 0.134"	3/4"	-0.019" to -0.202"	.004" per inch	Nonsparking	00000000	00000	000000	000000

Oil-Filled 841 Bearing Bronze Tubes

Yield Strength: 11,000 psi
Hardness: Not Rated
Temper: Not Rated
Heat Treatable: No
Specifications Met: ASTM B438

Powdered bronze is pressed and then impregnated with SAE 30 oil to make this material self-lubricating. Use it to make bearings and parts for hard-to-reach areas that would be difficult to access for lubrication, such as well pumps and turbine blades. These tubes are oversized on the outside and undersized on the inside to allow for finishing to the sizes listed.

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

Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.

3/8" Wall Thick.
OD	ID		3" Lg.	6 1/2" Lg.
2 1/2"	1 3/4"	00000000	000000	0000000
1/2" Wall Thick.
2 1/2"	1 1/2"	00000000	00000	000000
5/8" Wall Thick.
2 1/2"	1 1/4"	00000000	00000	000000
3/4" Wall Thick.
2 1/2"	1"	00000000	000000	000000

Easy-to-Machine 936 Bearing Bronze Tubes

Yield Strength: 21,000 psi
Hardness: Rockwell B25 (Soft)
Temper: M07
Heat Treatable: No
Specifications Met: ASTM B505

An easier-to-machine alternative to 932 bronze, 936 also has better corrosion resistance. It's also called modified SAE 64. Use it to machine bearings and bushings for oil pumps and gasoline engines.

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

Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.

1/4" Wall Thick.
OD	OD Tolerance Range	ID	ID Tolerance Range	Straightness Tolerance		6" Lg.	13" Lg.
2 1/2"	0.0312" to 0.0937"	2"	-0.0312" to -0.0937"	3/8" per 5 ft.	00000000	000000	0000000
3/8" Wall Thick.
2 1/2"	0.0312" to 0.0937"	1 3/4"	-0.0312" to -0.0937"	3/8" per 5 ft.	00000000	000000	000000
1/2" Wall Thick.
2 1/2"	0.0312" to 0.0937"	1 1/2"	-0.0312" to -0.0937"	3/8" per 5 ft.	00000000	000000	000000
5/8" Wall Thick.
2 1/2"	0.0312" to 0.0937"	1 1/4"	-0.0312" to -0.0937"	3/8" per 5 ft.	00000000	000000	000000
3/4" Wall Thick.
2 1/2"	0.0312" to 0.0937"	1"	-0.0312" to -0.0937"	3/8" per 5 ft.	00000000	000000	000000

Weldable 954 Bearing Bronze Tubes

Yield Strength: 32,000 psi
Hardness: Rockwell B85 (Medium)
Temper: M07
Heat Treatable: Yes
Specifications Met: ASTM B505

954 bronze contains a minimum of 10% aluminum for strength and weldability. It is also known as aluminum bronze. It's widely used for bearings, bushings, valve bodies, and worm gears. The strength of this material increases with heat treating.

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

Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.

1/4" Wall Thick.
OD	OD Tolerance Range	ID	ID Tolerance Range	Straightness Tolerance		6 1/2" Lg.	13" Lg.
2 1/2"	0.055" to 0.145"	2"	-0.055" to -0.155"	1/4" per 5 ft.	000000	000000	0000000
3/8" Wall Thick.
2 1/2"	0.055" to 0.145"	1 3/4"	-0.055" to -0.155"	1/4" per 5 ft.	0000000	00000	000000
1/2" Wall Thick.
2 1/2"	0.055" to 0.145"	1 1/2"	-0.055" to -0.155"	1/4" per 5 ft.	0000000	000000	000000
5/8" Wall Thick.
2 1/2"	0.055" to 0.145"	1 1/4"	-0.055" to -0.155"	1/4" per 5 ft.	0000000	00	000000
3/4" Wall Thick.
2 1/2"	0.055" to 0.145"	1"	-0.055" to -0.155"	1/4" per 5 ft.	00000000	000000	000000

Clamping Acme Lead Screw Collars

Thread these one-piece collars onto an Acme lead screw to separate and position components, or use them as an end stop to limit travel. Tighten the clamping screw to secure.

To ensure compatibility, please select a collar that has the same thread type, direction, and size as your lead screw.

Black-oxide carbon steel collars have mild corrosion resistance.

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

Right-Hand Threaded
Thread Size	OD	Wd.	No. of Thread Starts	Material	Hardness		Each
1 1/4"-5	2 1/2"	3/4"	1	Black Oxide 12L14 Carbon Steel	Brinell 163	0000000	000000

Washdown Clamping Shaft Collars

Suitable for use in washdown applications, these plastic collars also offer good chemical resistance. 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.

Acetal collars have a naturally slippery surface and resist swelling when exposed to moisture.

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

Inch

			Clamping Screw		White Nylon Plastic		White Acetal Plastic
For Shaft Dia.	OD	Wd.	Type	No. Included		Each		Each
1 1/2"	2 1/2"	3/4"	Socket Head Screw	1	0000000	000000	0000000	000000

Wide-Rim Ring Shims

Also known as machinery bushings, these shims have an oversized OD to create a larger bearing surface for reduced wear between moving parts. Use them to precisely align, level, and adjust spacing on shafts and machinery.

Carbon steel shims have excellent strength and can be welded.

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

1008-1010 Carbon Steel

0.048" Thick. (-0.006" to 0.006" Tolerance)
ID	ID Tolerance	OD	OD Tolerance	Material	Min. Hardness	Magnetic Properties	Pkg. Qty.		Pkg.
1 3/4"	-0.01" to 0.025"	2 1/2"	-0.01" to 0.01"	1008-1010 Carbon Steel	Rockwell B20	Magnetic	25	000000000	000000
0.075" Thick. (-0.007" to 0.007" Tolerance)
1 3/4"	-0.01" to 0.025"	2 1/2"	-0.01" to 0.01"	1008-1010 Carbon Steel	Rockwell B20	Magnetic	25	000000000	00000
0.134" Thick. (-0.008" to 0.008" Tolerance)
1 3/8"	-0.01" to 0.025"	2 1/2"	-0.01" to 0.01"	1008-1010 Carbon Steel	Rockwell B20	Magnetic	5	000000000	00000
1 3/4"	-0.01" to 0.025"	2 1/2"	-0.01" to 0.01"	1008-1010 Carbon Steel	Rockwell B20	Magnetic	5	000000000	00000

Press-Fit Drill Bushings

Mount flush with jig plates for precise drilling. These bushings can also be used as spacers, shims, and machinery bushings.

Don't see the size you need? Additional sizes are available.

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

			Tolerance							Each
OD	Lg.	For Drill Bit Size	ID	OD	Lg.	Drill Bushing Type	Material	Hardness		1-5	6-11	12-Up
2" ID
2 1/2"	1"	2"	0.0003" to 0.0007"	0.0021" to 0.0025"	-0.015" to 0.015"	P	Steel	Rockwell C61	00000000	000000	000000	000000
2 1/2"	2"	2"	0.0003" to 0.0007"	0.0021" to 0.0025"	-0.015" to 0.015"	P	Steel	Rockwell C61	00000000	00000	00000	00000

Wear-Resistant Easy-to-Machine Delrin® Acetal Resin Tubes

Color: White or Black
Temperature Range:
6" Lengths: 0° to 180° F
All other sizes: -20° to 180° F
Tensile Strength: 7,690 psi (Good)
Impact Strength: 1-1.5 ft.-lbs./in. (Poor)
Hardness: Rockwell R120-R122 (Hard)
For Use Outdoors: No
Specifications Met: See table

Easy to machine to close tolerances, these dimensionally stable tubes resist expanding when exposed to heat and moisture. They have a naturally slippery surface along with excellent wear resistance. Use them to make precision gears, bushings, and bearings. Delrin® acetal resin, also known as acetal homopolymer, is stronger and stiffer than acetal copolymer.

Tight-tolerance tubes that are 6” long are also known as bushing stock. You can slide them over rods to increase the OD, or into shafts to decrease the ID. Their precise sizing also allows ascending sizes to fit inside of each other to increase the wall thickness.

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

						White
OD	OD Tolerance	ID	ID Tolerance	Specifications Met	Lg.		Each
1/8" Wall Thick. (-0.005" to 0.005")
2 1/2"	-0.005" to 0.005"	2 1/4"	-0.005" to 0.005"	ASTM D4181, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	6"	0000000	0000000

MDS-Filled Easy-to-Machine Wear-Resistant Cast Nylon Tubes

Color: Black
Maximum Temperature: 230° F
Tensile Strength: 10,000 psi (Good)
Impact Strength: 1.4 ft.-lbs./in. (Poor)
Hardness: Rockwell R110 (Hard)
For Use Outdoors: Yes
Specifications Met: ASTM D5989

The addition of MDS gives these tubes exceptional wear resistance along with a self-lubricating surface. They're made of cast nylon 6, making them easier to machine and better electrical insulators than other MDS-filled nylon tubes. Tubes can be used to fabricate pulleys, bushings, and bearings installed in hard-to-reach areas where adding a lubricant would be difficult. The OD is oversized and the ID is undersized to allow for finishing to the sizes listed. This material is comparable to Nylatron and Nycast.

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

			1 ft. Lg.		2 ft. Lg.
OD	ID	Tolerance Rating		Each		Each
1/4" Wall Thickness
2 1/2"	2"	Oversized	00000000	000000	00000000	000000
1/2" Wall Thickness
2 1/2"	1 1/2"	Oversized	00000000	00000	00000000	00000
3/4" Wall Thickness
2 1/2"	1"	Oversized	00000000	00000	00000000	00000

Heat-Stabilized Easy-to-Machine Wear-Resistant Cast Nylon Tubes

Color: Blue
Maximum Temperature: 250° F
Tensile Strength: 10,000-13,500 psi (Good)
Impact Strength: 1-2.5 ft.-lbs./in. (Poor)
Hardness: Rockwell R110-R120 (Hard)
For Use Outdoors: Yes

A good choice for making sprockets and pulleys, these cast nylon 6 tubes withstand higher temperatures and are easier to machine than standard nylon 6/6 tubes. This material is comparable to Nylatron and Nycast.

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

			1 ft. Lg.		2 ft. Lg.
OD	ID	Tolerance Rating		Each		Each
1/2" Wall Thickness
2 1/2"	1 1/2"	Oversized	00000000	000000	00000000	000000
3/4" Wall Thickness
2 1/2"	1"	Oversized	00000000	00000	00000000	00000

Clear Scratch- and UV-Resistant Acrylic Tubes

Color: Clear
Temperature Range: -40° to 180° F
Tensile Strength; 9,195-11,030 (Good)
Impact Strength: 0.040 ft.-lbs./in.
Hardness: Rockwell M89-M96 (Hard)
For Use Outdoors: Yes
Specifications Met: UL 94 HB

When compared to cast acrylic tubes, these extruded acrylic tubes offer nearly the same performance at a fraction of the cost. Use them for sight gauges and protective covers. This scratch- and UV-resistant material stands up to outdoor use better than polycarbonate and maintains clarity over time.

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

Round Tubes

1/8" Wall Thick.
OD	OD Tolerance	ID	ID Tolerance	Lg., ft.		Each
2 1/2"	-0.020" to 0.020"	2 1/4"	-0.020" to 0.020"	6	0000000	000000

Self-Adjusting Spring Bushings

A toothed slot lets these bushings contract for insertion into the bore of your sprocket or pulley and then expand for a snug fit. Made of spring steel, they flex under stress and shock and can handle oscillating or slow rotational motion.

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

For 2" Shaft Diameter
OD	Overall Wd.	Material		Each
2 1/2"	1"	Steel	00000000	000000
2 1/2"	1 1/2"	Steel	00000000	00000
2 1/2"	2"	Steel	00000000	00000
2 1/2"	2 1/2"	Steel	00000000	00000
2 1/2"	3"	Steel	00000000	00000