4mm Length Bearings | McMaster-Carr

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56 Products

About Plain 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.

Metric 841 Bronze Bearings

For 2.5 mm Shaft Dia.
For Housing ID, mm	Lg., mm	Dynamic Radial Load Capacity	Lubrication	Lubricant	Temperature Range, °F		Each
6.5	4	31 lbs. @ 120 rpm	Lubricated	SAE 30 Oil	-35° to 300°	0000000	000000
For 3 mm Shaft Dia.
5	4	37 lbs. @ 120 rpm	Lubricated	SAE 30 Oil	10° to 220°	00000000	0000
6	4	37 lbs. @ 120 rpm	Lubricated	SAE 30 Oil	-35° to 300°	0000000	0000
For 4 mm Shaft Dia.
7	4	49 lbs. @ 120 rpm	Lubricated	SAE 30 Oil	-35° to 300°	00000000	0000
8	4	49 lbs. @ 120 rpm	Lubricated	SAE 30 Oil	-35° to 300°	00000000	0000
For 5 mm Shaft Dia.
8	4	60 lbs. @ 120 rpm	Lubricated	SAE 30 Oil	-35° to 300°	00000000	0000
For 6 mm Shaft Dia.
9	4	70 lbs. @ 120 rpm	Lubricated	SAE 30 Oil	-35° to 300°	00000000	0000
10	4	70 lbs. @ 120 rpm	Lubricated	SAE 30 Oil	-35° to 300°	00000000	0000

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 3mm Shaft Dia.
For Housing ID	Lg.	Dynamic Radial Load Capacity	Lubrication	Lubricant	Temperature Range, °F		Each
6mm	4mm	70 lbs. @ 120 rpm	Lubricated	SAE 90 Oil	-15° to 300°	00000000	00000

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 3mm Shaft Dia.
For Housing ID, mm	Lg., mm	Dynamic Radial Load Capacity	Lubrication	Lubricant	Temperature Range, °F		Each
6	4	37 lbs. @ 120 rpm	Lubricated	SAE 20 Oil with PTFE	-60° to 300°	00000000	00000
For 4mm Shaft Dia.
8	4	49 lbs. @ 120 rpm	Lubricated	SAE 20 Oil with PTFE	-60° to 300°	00000000	0000

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. As sleeve bearings, they handle loads parallel to the shaft.

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 3 mm Shaft Dia.
6	4	70 lbs. @ 120 rpm	Lubricated	SAE 20 Oil with PTFE	-60° to 300°	00000000	00000
For 4 mm Shaft Dia.
8	4	95 lbs. @ 120 rpm	Lubricated	SAE 20 Oil with PTFE	-60° to 300°	00000000	0000

High-Load Food Industry Oil-Embedded Sleeve Bearings

Embedded with oil that is safe for incidental contact with food, these bearings are suitable for use in high-load applications such as bottling and filling lines in food processing plants. They are also known as Super Oilite® bearings. Startup friction releases the embedded oil onto their surface in a thin layer. Bearings are made of 863 iron-copper, which makes these bearings strong and resistant to shock loads.

Bearings with NSF H1 registered lubrication comply with NSF standards for incidental contact with food.

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

863 Iron-Copper
For Housing ID	Length	Dynamic Radial Load Capacity	Lubrication	Lubricant	Temperature Range, °F	Specifications Met		Each
For 3mm Shaft Dia.
6mm	4mm	70 lbs. @ 120 rpm	Lubricated	SAE 20 Oil	-75° to 300°	ASTM B439, NSF Registered H1	00000000	00000

Light Duty Dry-Running Sleeve Bearings

Use where high loads and speeds are not required.

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 Nylon Bearings
For Housing ID	Lg.	Dynamic Radial Load Capacity	Color	Temperature Range, °F		Each
For 5mm Shaft Dia.
8mm	4mm	12 lbs. @ 120 rpm	Off-White	-10° to 220°	00000000	00000
For 6mm Shaft Dia.
9mm	4mm	12 lbs. @ 120 rpm	Off-White	-10° to 220°	00000000	0000
10mm	4mm	12 lbs. @ 120 rpm	Off-White	-10° to 220°	00000000	0000

Oil-Embedded Flanged 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.

Metric 841 Bearing Bronze Bearings
For Housing ID	Lg.	Flange OD	Flange Thick.	Dynamic Radial Load Capacity	Dynamic Thrust Load Capacity	Lubrication	Lubricant	Temperature Range, °F		Each
For 2.5mm Shaft Dia.
6.5mm	4mm	8.5mm	2mm	31 lbs. @ 120 rpm	160 lbs. @ 120 rpm	Lubricated	SAE 30 Oil	-35° to 300°	0000000	000000
For 3mm Shaft Dia.
6mm	4mm	9mm	1.5mm	37 lbs. @ 120 rpm	175 lbs. @ 120 rpm	Lubricated	SAE 30 Oil	-35° to 300°	0000000	0000
For 4mm Shaft Dia.
8mm	4mm	12mm	2mm	49 lbs. @ 120 rpm	310 lbs. @ 120 rpm	Lubricated	SAE 30 Oil	10° to 220°	00000000	0000
For 6mm Shaft Dia.
10mm	4mm	14mm	2mm	70 lbs. @ 120 rpm	380 lbs. @ 120 rpm	Lubricated	SAE 30 Oil	10° to 220°	00000000	0000

High-Load Oil-Embedded Flanged 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 these bearings to release a thin layer of oil onto their surface. Color is silver because of the iron.

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 Housing ID	Lg.	Flange OD	Flange Thick.	Dynamic Radial Load Capacity	Dynamic Thrust Load Capacity	Lubrication	Lubricant	Temperature Range, °F		Each
For 2.5mm Shaft Dia.
6.5mm	4mm	8.5mm	2mm	60 lbs. @ 120 rpm	260 lbs. @ 120 rpm	Lubricated	ISO 460 Oil	-15° to 300°	00000000	000000
For 3mm Shaft Dia.
6mm	4mm	9mm	1.5mm	70 lbs. @ 120 rpm	270 lbs. @ 120 rpm	Lubricated	ISO 460 Oil	-15° to 300°	0000000	0000

Ultra-Low-Friction Oil-Embedded Flanged 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.

841 Bronze Bearings
For Housing ID	Lg.	Flange OD	Flange Thick.	Dynamic Radial Load Capacity	Dynamic Thrust Load Capacity	Lubrication	Lubricant	Temperature Range, °F		Each
For 3mm Shaft Dia.
6mm	4mm	9mm	1.5mm	37 lbs. @ 120 rpm	175 lbs. @ 120 rpm	Lubricated	SAE 20 Oil with PTFE	-60° to 300°	00000000	00000

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

With oil for reduced friction and iron for added strength, these bearings handle frequent stops and starts in high-load applications. They withstand greater weight and shock loads than standard bearings, but operate at lower speeds.

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

863 Iron-Copper Bearings
For Housing ID, mm	Length, mm	Flange OD, mm	Flange Thickness, mm	Dynamic Radial Load Capacity	Dynamic Thrust Load Capacity	Lubrication	Lubricant	Temperature Range, °F		Each
3 mm Shaft Dia.
6	4	9	1.5	70 lbs. @ 120 rpm	270 lbs. @ 120 rpm	Lubricated	ISO 460 Oil	-60° to 300°	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.

Nylon Bearings
For Housing ID	Lg.	Flange OD	Flange Thick.	Dynamic Radial Load Capacity	Dynamic Thrust Load Capacity	Color	Temperature Range, °F		Each
For 5mm Shaft Dia.
8mm	4mm	11mm	1.5mm	12 lbs. @ 120 rpm	25 lbs. @ 120 rpm	White	-20° to 210°	00000000	00000
For 6mm Shaft Dia.
10mm	4mm	14mm	2mm	14 lbs. @ 120 rpm	33 lbs. @ 120 rpm	White	-20° to 210°	00000000	0000
Thermoplastic-Blend Bearings
For 6mm Shaft Dia.
8mm	4mm	12mm	1mm	48 lbs. @ 120 rpm	85 lbs. @ 120 rpm	Yellow	-50° to 190°	00000000	0000

Easy-Install Dry-Running Flanged Sleeve Bearings

A slit running along the length of these bearings allows you to quickly slip them into a housing—no tools required.

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.

Nylon Plastic Bearings
For Housing ID	Lg.	Flange OD	Flange Thick.	Dynamic Radial Load Capacity	Dynamic Thrust Load Capacity	Color	Temperature Range, °F		Each
For 4mm Shaft Dia.
5.2mm	4mm	7mm	0.6mm	7 lbs. @ 120 rpm	11 lbs. @ 120 rpm	White	0° to 200°	0000000	00000

Ultra-Low-Friction Dry-Running Flanged Sleeve Bearings

Use these bearings in applications with frequent starts and stops because they operate with very little friction.

PTFE bearings have good chemical resistance.

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.

PTFE Plastic Bearings
For Housing ID	Lg.	Flange OD	Flange Thick.	Dynamic Radial Load Capacity	Dynamic Thrust Load Capacity	Color	Temperature Range, °F	Specifications Met		Each
For 3 mm Shaft Dia.
6mm	4mm	9mm	1.5mm	5 lbs. @ 120 rpm	7.5 lbs. @ 120 rpm	White	-200° to 450°	FDA Compliant 21 CFR 177.1550	00000000	00000

Food Industry Dry-Running Flanged Sleeve Bearings

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

Acetal bearings are FDA compliant for direct contact with food. They’re commonly used on machines in food plants and manufacturing plants for packaging and healthcare equipment. These bearings are bright blue, so they’re easy to spot in your line in case of breakage.

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.

Acetal Plastic Bearings
For Housing ID	Lg.	Flange OD	Flange Thick.	Dynamic Radial Load Capacity	Dynamic Thrust Load Capacity	Color	Temperature Range, °F	Specifications Met		Each
For 6mm Shaft Dia.
8mm	4mm	12mm	1mm	5 lbs. @ 120 rpm	19 lbs. @ 120 rpm	Blue	-50° to 190°	FDA Compliant 21 CFR 177.1520, FDA Compliant 21 CFR 177.1550, FDA Compliant 21 CFR 178.3297	000000000	00000

Chemical-Resistant Dry-Running Flanged Sleeve Bearings

These bearings stand up to a wider range of chemicals than other dry-running flanged sleeve bearings. They are lightweight and strong.

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.

PEEK Plastic Bearings
For Housing ID	Lg.	Flange OD	Flange Thick.	Dynamic Radial Load Capacity	Dynamic Thrust Load Capacity	Color	Temperature Range, °F		Each
For 3 mm Shaft Dia.
6mm	4mm	9mm	1.5mm	70 lbs. @ 120 rpm	110 lbs. @ 120 rpm	Beige	-20° to 450°	00000000	000000

Multipurpose Flanged Sleeve Bearings

These 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.	Flange OD	Flange Thick.	Dynamic Radial Load Capacity	Dynamic Thrust Load Capacity	Lubrication	Temperature Range, °F	PV Max.		Each
For 3mm Shaft Dia.
6mm	4mm	9mm	1.5mm	70 lbs. @ 120 rpm	350 lbs. @ 120 rpm	Required	-350° to 450°	75,000	00000000	00000

Metric Press-Fit Drill Bushings with Head

Shown in Countersunk Hole

Shown in Standard Hole

Even under extreme drilling pressure, these metric bushings won't press through your jig plate. A flanged head on the top of the bushing acts as a stop, preventing it from moving as you push down your drill bit, reamer, or other cutting bit. Drill bushings ensure accurate, consistent cuts and drilled holes from one part to the next. They sometimes also work as spacers, shims, and machinery bushings. Made of hardened, ground steel, these bushings hold their shape and resist wear over time. The flanged head protects your jig plate from damage caused by heavy use.

Although it's no longer an active standard, DIN 172 is still a common reference point for making sure parts are compatible with other parts and tools.

These bushings work in both countersunk and standard drill holes. To install, place the bushing inside the hole in your jig. A chamfered edge on the bottom of the bushing helps center the bushing in the hole. Once centered, press the bushing into the hole with a hydraulic or lever press.

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

		Head		Tolerance								Each
OD, mm	Lg., mm	OD, mm	Thick., mm	ID, mm	OD, mm	Lg., mm	Drill Bushing Type	Material	Hardness	Specifications Met		1-5	6-11	12-Up
0.4 mm ID
3	4	6	2	0.006 to 0.016	0.004 to 0.01	-0.1 to 0.1	H	Steel	Rockwell C61	DIN 172	000000000	000000	000000	000000
0.5 mm ID
3	4	6	2	0.006 to 0.016	0.004 to 0.01	-0.1 to 0.1	H	Steel	Rockwell C61	DIN 172	000000000	00000	00000	00000
0.6 mm ID
3	4	6	2	0.006 to 0.016	0.004 to 0.01	-0.1 to 0.1	H	Steel	Rockwell C61	DIN 172	000000000	00000	00000	00000
0.7 mm ID
3	4	6	2	0.006 to 0.016	0.004 to 0.01	-0.1 to 0.1	H	Steel	Rockwell C61	DIN 172	000000000	00000	00000	00000
0.8 mm ID
3	4	6	2	0.006 to 0.016	0.004 to 0.01	-0.1 to 0.1	H	Steel	Rockwell C61	DIN 172	000000000	00000	00000	00000
0.9 mm ID
3	4	6	2	0.006 to 0.016	0.004 to 0.01	-0.1 to 0.1	H	Steel	Rockwell C61	DIN 172	000000000	00000	00000	00000
1 mm ID
3	4	6	2	0.006 to 0.016	0.004 to 0.01	-0.1 to 0.1	H	Steel	Rockwell C61	DIN 172	000000000	00000	00000	00000
1.1 mm ID
4	4	7	2	0.006 to 0.016	0.008 to 0.016	-0.1 to 0.1	H	Steel	Rockwell C61	DIN 172	000000000	00000	00000	00000
1.2 mm ID
4	4	7	2	0.006 to 0.016	0.008 to 0.016	-0.1 to 0.1	H	Steel	Rockwell C61	DIN 172	000000000	00000	00000	00000
1.3 mm ID
4	4	7	2	0.006 to 0.016	0.008 to 0.016	-0.1 to 0.1	H	Steel	Rockwell C61	DIN 172	000000000	00000	00000	00000
1.4 mm ID
4	4	7	2	0.006 to 0.016	0.008 to 0.016	-0.1 to 0.1	H	Steel	Rockwell C61	DIN 172	000000000	00000	00000	00000
1.5 mm ID
4	4	7	2	0.006 to 0.016	0.008 to 0.016	-0.1 to 0.1	H	Steel	Rockwell C61	DIN 172	000000000	00000	00000	00000
1.6 mm ID
4	4	7	2	0.006 to 0.016	0.008 to 0.016	-0.1 to 0.1	H	Steel	Rockwell C61	DIN 172	000000000	00000	00000	00000
1.7 mm ID
4	4	7	2	0.006 to 0.016	0.008 to 0.016	-0.1 to 0.1	H	Steel	Rockwell C61	DIN 172	000000000	00000	00000	00000
1.8 mm ID
4	4	7	2	0.006 to 0.016	0.008 to 0.016	-0.1 to 0.1	H	Steel	Rockwell C61	DIN 172	000000000	00000	00000	00000
1.9 mm ID
5	4	8	2	0.006 to 0.016	0.008 to 0.016	-0.1 to 0.1	H	Steel	Rockwell C61	DIN 172	000000000	00000	0000	0000
2 mm ID
5	4	8	2	0.006 to 0.016	0.008 to 0.016	-0.1 to 0.1	H	Steel	Rockwell C61	DIN 172	000000000	00000	0000	0000
2.1 mm ID
5	4	8	2	0.006 to 0.016	0.008 to 0.016	-0.1 to 0.1	H	Steel	Rockwell C61	DIN 172	000000000	00000	0000	0000
2.2 mm ID
5	4	8	2	0.006 to 0.016	0.008 to 0.016	-0.1 to 0.1	H	Steel	Rockwell C61	DIN 172	000000000	00000	0000	0000
2.3 mm ID
5	4	8	2	0.006 to 0.016	0.008 to 0.016	-0.1 to 0.1	H	Steel	Rockwell C61	DIN 172	000000000	00000	0000	0000
2.4 mm ID
5	4	8	2	0.006 to 0.016	0.008 to 0.016	-0.1 to 0.1	H	Steel	Rockwell C61	DIN 172	000000000	00000	0000	0000
2.5 mm ID
5	4	8	2	0.006 to 0.016	0.008 to 0.016	-0.1 to 0.1	H	Steel	Rockwell C61	DIN 172	000000000	00000	0000	0000
2.6 mm ID
5	4	8	2	0.006 to 0.016	0.008 to 0.016	-0.1 to 0.1	H	Steel	Rockwell C61	DIN 172	000000000	00000	0000	0000