2 1/2" Spacers | McMaster-Carr

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	System of Measurement System of Measurement

Inch

	For Shaft Diameter For Shaft Diameter

1 3/4"

2 3/16"

2 1/4"

	OD OD

	ID ID

	Length Length

1 1/2"

2 1/4"

2 1/2"

	Plain Bearing Type Plain Bearing Type

	Sleeve

	For Housing ID For Housing ID	Show

2 1/2"

	For Housing ID For Housing ID	Hide

	Material Material

863 Iron-Copper

Bronze

Plastic

	Dynamic Radial Load Capacity Dynamic Radial Load Capacity

	Bearing Type Bearing Type

	Plain

	Lubrication Lubrication

Not Required

Lubricated

Required

	For Load Direction For Load Direction

	Radial

	Shaft Mount Type Shaft Mount Type

Slip Fit

Press Fit

	For Shaft Type For Shaft Type

	Round

	Maximum Temperature Maximum Temperature

Less than 250° F

300° to 499° F

500° to 999° F

	Minimum Temperature Minimum Temperature

-250° F or less

-99° to -50° F

-49° to 0° F

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Lubrication Method Lubrication Method

Embedded

Grooved

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Seal Type Seal Type

Sealed

Open

	Lubricant Lubricant

Graphite

SAE 30 Oil

SAE 90 Oil

	Color Color

	Blue

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25 Products

About Plain Bearings

High-Temperature Dry-Running Sleeve Bearings

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

841 bronze bearings are porous and embedded with graphite for continuous lubrication.

660 leaded bronze bearings are cast, making them strong, wear resistant, and excellent at handling shock loads. They are sometimes called 932 bronze bearings.

Grooved bearings have a graphite-filled groove on the inside of the bearing that distributes lubricant evenly 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.

Embedded

Grooved

841 Bronze Bearings
For Housing ID	Lg.	Dynamic Radial Load Capacity	Lubrication Method	Temperature Range, °F		Each
For 2" Shaft Dia.
2 1/2"	2"	6,400 lbs. @ 30 rpm	Embedded	-50° to 700°	00000000	000000
2 1/2"	2 1/2"	8,000 lbs. @ 30 rpm	Embedded	-50° to 700°	00000000	00000
2 1/2"	3"	9,600 lbs. @ 30 rpm	Embedded	-50° to 700°	00000000	00000
660 Leaded Bronze Bearings
For 2" Shaft Dia.
2 1/2"	2"	14,000 lbs. @ 30 rpm	Grooved	-350° to 450°	00000000	00000
2 1/2"	2 1/2"	17,500 lbs. @ 30 rpm	Grooved	-350° to 450°	00000000	00000
2 1/2"	3"	21,000 lbs. @ 30 rpm	Grooved	-350° to 450°	00000000	00000
2 1/2"	4"	28,000 lbs. @ 30 rpm	Grooved	-350° to 450°	00000000	00000

Multipurpose Dry-Running Sleeve Bearings

Reinforced with polyester fabric, these plastic bearings have load and speed capabilities comparable to metal bearings. Bearings resist corrosion in outdoor and saltwater environments.

Bearings with seals block out dust and contaminants.

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.

Polyester Fabric-Reinforced PTFE Plastic Bearings

Without Seals

For 2 1/4" Shaft Dia.
For Housing ID	Lg.	Dynamic Radial Load Capacity	Color	Temperature Range, °F		Each
2 1/2"	2 1/4"	7,150 lbs. @ 30 rpm	Blue	-40° to 150°	0000000	000000

Polyester Fabric-Reinforced PTFE Plastic Bearings with Seals

With Seals

For 1 3/4" Shaft Dia.
For Housing ID	Lg.	Dynamic Radial Load Capacity	Color	Temperature Range, °F		Each
2 1/2"	3"	9,500 lbs. @ 30 rpm	Blue	-40° to 150°	0000000	000000

Oil-Embedded Sleeve 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 2" Shaft Dia.
For Housing ID	Lg.	Dynamic Radial Load Capacity	Lubrication	Lubricant	Temperature Range, °F		Each
2 1/2"	1 1/2"	6,000 lbs. @ 30 rpm	Lubricated	SAE 30 Oil	-35° to 300°	00000000	000000
2 1/2"	2"	8,000 lbs. @ 30 rpm	Lubricated	SAE 30 Oil	-35° to 300°	00000000	00000
2 1/2"	2 1/2"	10,000 lbs. @ 30 rpm	Lubricated	SAE 30 Oil	-35° to 300°	00000000	00000
2 1/2"	3"	12,000 lbs. @ 30 rpm	Lubricated	SAE 30 Oil	-35° to 300°	0000000	000000
For 2 3/16" Shaft Dia.
2 1/2"	2"	8,750 lbs. @ 30 rpm	Lubricated	SAE 30 Oil	-35° to 300°	00000000	00000

High-Load Oil-Embedded Sleeve 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. These bearings are also magnetic due to the high iron content.

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 Iron-Copper Bearings

For 2" Shaft Dia.
For Housing ID	Lg.	Dynamic Radial Load Capacity	Lubrication	Lubricant	Temperature Range, °F		Each
2 1/2"	2"	8,900 lbs. @ 30 rpm	Lubricated	SAE 90 Oil	-15° to 300°	00000000	000000
2 1/2"	2 1/2"	11,100 lbs. @ 30 rpm	Lubricated	SAE 90 Oil	-15° to 300°	00000000	00000
2 1/2"	3"	13,350 lbs. @ 30 rpm	Lubricated	SAE 90 Oil	-15° to 300°	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.

660 Leaded Bronze Bearings
For Housing ID	Lg.	Dynamic Radial Load Capacity	Lubrication	Temperature Range, °F		Each
For 2" Shaft Dia.
2 1/2"	2"	16,000 lbs. @ 30 rpm	Required	-350° to 450°	00000000	000000
2 1/2"	2 1/2"	20,000 lbs. @ 30 rpm	Required	-350° to 450°	00000000	00000
2 1/2"	3"	24,000 lbs. @ 30 rpm	Required	-350° to 450°	00000000	00000
2 1/2"	5"	40,000 lbs. @ 30 rpm	Required	-350° to 450°	00000000	00000

Multipurpose Sleeve Bearings with Groove

A figure-8-shaped groove provides a flow path for lubricant, distributing it evenly along the bearing’s surface. Bearings are cast bronze, making them strong, wear resistant, and excellent at handling shock loads. 660 leaded bronze is sometimes called 932 bronze.

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 Bearings
For Housing ID	Lg.	Dynamic Radial Load Capacity	Lubrication	Temperature Range, °F		Each
For 2" Shaft Dia.
2 1/2"	2"	14,000 lbs. @ 30 rpm	Required	-350° to 450°	0000000	000000
2 1/2"	2 1/2"	17,500 lbs. @ 30 rpm	Required	-350° to 450°	0000000	00000
2 1/2"	3"	21,000 lbs. @ 30 rpm	Required	-350° to 450°	0000000	00000
2 1/2"	5"	35,000 lbs. @ 30 rpm	Required	-350° to 450°	0000000	00000