55mm Spacers | McMaster-Carr

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.

Grooved

Metric 954 Aluminum-Bronze
For Housing ID	Lg.	Dynamic Radial Load Capacity	Lubrication Method	Temperature Range, °F		Each
For 50mm Shaft Dia.
55mm	50mm	15,100 lbs. @ 30 rpm	Grooved	-350° to 500°	00000000	000000

Food Industry Dry-Running Sleeve Bearings

Made of FDA-listed materials or FDA compliant, these bearings are for use in food applications. They also withstand caustic and washdown environments.

Acetal bearings are FDA compliant for direct contact with food. They’re also bright blue, making them easy to spot if they fall into your line.

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 Acetal Plastic Bearings
For Housing ID	Lg.	Dynamic Radial Load Capacity	Color	Temperature Range, °F	Specifications Met		Each
For 50mm Shaft Dia.
55mm	20mm	870 lbs. @ 30 rpm	Blue	-50° to 190°	FDA Compliant 21 CFR 177.1550	00000000	00000

Oil-Embedded Sleeve Bearings

Startup friction causes these 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.

Metric 841 Bronze Bearings

For 45 mm Shaft Dia.
For Housing ID, mm	Lg., mm	Dynamic Radial Load Capacity	Lubrication	Lubricant	Temperature Range, °F		Each
55	35	4,850 lbs. @ 30 rpm	Lubricated	SAE 30 Oil	-35° to 300°	00000000	000000
55	45	6,250 lbs. @ 30 rpm	Lubricated	SAE 30 Oil	-35° to 300°	00000000	00000
55	55	7,650 lbs. @ 30 rpm	Lubricated	SAE 30 Oil	-35° to 300°	00000000	00000
55	60	8,350 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.

863 iron-copper bearings are also known as Super 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.

863 Iron-Copper Bearings

For 45mm Shaft Dia.
For Housing ID	Lg.	Dynamic Radial Load Capacity	Lubrication	Lubricant	Temperature Range, °F		Each
55mm	45mm	7,850 lbs. @ 30 rpm	Lubricated	SAE 90 Oil	-15° to 300°	00000000	000000

Ultra-Low-Friction Oil-Embedded Sleeve 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.

Metric 841 Bronze Bearings

For 45mm Shaft Dia.
For Housing ID, mm	Lg., mm	Dynamic Radial Load Capacity	Lubrication	Lubricant	Temperature Range, °F		Each
55	55	7,650 lbs. @ 30 rpm	Lubricated	SAE 20 Oil with PTFE	-60° to 300°	00000000	000000

High-Load Ultra-Low-Friction Oil-Embedded Sleeve Bearings

With extra iron and filled with oil containing slippery PTFE, these bearings support heavy loads that frequently start and stop along shafts. Startup friction causes a thin layer of oil to release onto the surface. Their high iron content also means they resist failing if their load suddenly and drastically increases, but they won’t run as fast as standard 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 Iron-Copper
For Housing ID, mm	Length, mm	Dynamic Radial Load Capacity	Lubrication	Lubricant	Temperature Range, °F		Each
For 45 mm Shaft Dia.
55	45	7,850 lbs. @ 30 rpm	Lubricated	SAE 20 Oil with PTFE	-60° to 300°	00000000	000000
55	55	9,600 lbs. @ 30 rpm	Lubricated	SAE 20 Oil with PTFE	-60° to 300°	00000000	00000

Multipurpose Sleeve Bearings

These 932 bearing bronze bearings are strong, wear resistant, and excellent at handling shock loads. They’re sometimes called 660 leaded 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 932 Bearing Bronze Bearings
For Housing ID	Lg.	Dynamic Radial Load Capacity	Lubrication	Temperature Range, °F		Each
For 50mm Shaft Dia.
55mm	50mm	15,500 lbs. @ 30 rpm	Required	-350° to 450°	00000000	000000

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. 932 bearing bronze is sometimes called 660 leaded 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.

Metric 932 Bearing Bronze
For Housing ID	Lg.	Dynamic Radial Load Capacity	Lubrication	Temperature Range, °F		Each
For 40mm Shaft Dia.
55mm	75mm	16,250 lbs. @ 30 rpm	Required	-350° to 450°	00000000	000000
For 45mm Shaft Dia.
55mm	45mm	10,950 lbs. @ 30 rpm	Required	-350° to 450°	00000000	00000
For 50mm Shaft Dia.
55mm	50mm	13,550 lbs. @ 30 rpm	Required	-350° to 450°	00000000	00000
55mm	65mm	17,600 lbs. @ 30 rpm	Required	-350° to 450°	00000000	00000

Light Duty Dry-Running Flanged Sleeve Bearings

Use where high loads and speeds are not required.

Thermoplastic-blend bearings have low moisture absorption and create very low friction in applications with light loads, and frequent starts and stops.

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
For Housing ID	Lg.	Flange OD	Flange Thick.	Dynamic Radial Load Capacity	Dynamic Thrust Load Capacity	Color	Temperature Range, °F		Each
For 50mm Shaft Dia.
55mm	11.5mm	63mm	2mm	550 lbs. @ 30 rpm	890 lbs. @ 30 rpm	Yellow	-50° to 190°	00000000	000000
55mm	50mm	63mm	2mm	2,400 lbs. @ 30 rpm	890 lbs. @ 30 rpm	Yellow	-50° to 190°	00000000	00000

Corrosion-Resistant Flanged Sleeve 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
For Housing ID	Lg.	Flange OD	Flange Thick.	Dynamic Radial Load Capacity	Dynamic Thrust Load Capacity	Lubrication	Temperature Range, °F		Each
For 45mm Shaft Dia.
55mm	65mm	65mm	5mm	20,400 lbs. @ 30 rpm	12,050 lbs. @ 30 rpm	Required	-350° to 500°	00000000	000000