12.03mm ID Bearings | McMaster-Carr

Unlike other sleeve bearings, these do not need to be fully inserted into a housing. Their unique shape creates a permanent, secure hold in thin panels. Bearings swivel to accommodate up to 5° of shaft misalignment. On startup, friction causes the bronze to release a thin layer of oil on the bearing’s surface. Not for use with plastic panels.

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 840 Bronze Bearings
Lg.	Spline OD	For Min. Sheet Metal Thick.	Dynamic Radial Load Capacity	Misalignment Capability	Lubrication	Lubricant	Temperature Range, °F		Each
For 12mm Shaft Dia.
16.3mm	22mm	1.5mm	510 lbs. @ 120 rpm	5°	Lubricated	SAE 45 Oil	-20° to 200°	0000000	000000

High-Speed Self-Aligning Dry-Running Flanged Sleeve Bearings

Made of acetal with a PTFE filler, these bearings handle velocities up to twice as high as standard acetal bearings. They’re self-lubricating, so they’ll take on less wear for an increased lifespan. Acetal won’t warp or swell from exposure to water, so these bearings are good for use in washdown environments. These bearings swivel to compensate for a small amount of shaft misalignment. Designed for press-fit installation by hand—no tools required—they don’t need to be fitted into a housing. Mount them into injection-molded panels and mounts, thin sheet metal, or hard non-ductile materials.

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

PTFE-Filled Acetal Plastic Bearings
For Shaft Diameter	Length	Flange OD	Flange Thickness	Dynamic Radial Load Capacity	Dynamic Thrust Load Capacity	Misalignment Capability	Color	Temperature Range, °F		Each
12mm	14.9mm	22.2mm	0.8mm	130 lbs. @ 120 rpm	105 lbs. @ 120 rpm	5°	Black	-40° to 180°	0000000	000000

Dry-Running Mounted Sleeve Bearings

With Acetal Bearings

Made from slippery materials, these bearings reduce friction without the oily mess. They are self-aligning to compensate for shaft misalignment.

Acetal bearings do not warp or swell when exposed to water, so they’re often used in washdown environments.

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.

		Overall				Mounting
For Shaft Dia.	Center Ht.	Ht.	Lg.	Wd.	Bearing Wd.	Hole Dia.	Hole Ctr.-to-Ctr.	Dynamic Radial Load Cap.	Temp. Range, °F	Alignment Style		Each
Acetal Plastic Bearings with Aluminum Housing
12mm	14.5mm	28.6mm	57.2mm	16mm	16mm	7.1mm	44.5mm	60 lbs. @ 120 rpm	-40° to 180°	Self Aligning	0000000	000000

Oil-Embedded Mounted Sleeve Bearings

Startup friction causes these porous bronze bearings to release a thin layer of oil on the bearing’s surface. They are self-aligning to compensate for shaft misalignment.

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.

		Overall				Mounting
For Shaft Dia.	Center Ht.	Ht.	Lg.	Wd.	Bearing Wd.	Hole Dia.	Hole Ctr.-to-Ctr.	Dynamic Radial Load Cap.	Temp. Range, °F	Alignment Style	Lubrication		Each
840 Bearing Bronze Bearings with Aluminum Housing
12mm	19mm	39.5mm	82.5mm	16mm	16mm	9mm	63.5mm	500 lbs. @ 120 rpm	-20° to 200°	Self Aligning	Lubricated	0000000	000000

Dry-Running Mounted Sleeve Bearings with Two-Bolt Flange

With Acetal Plastic Bearing

Embedded lubricant particles increase the load capacity of these bearings while also making them slippery. Bearings are self-aligning to compensate for shaft misalignment.

Acetal sleeve bearings won’t warp or swell when exposed to water, making them good for use in washdown environments.

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.

	Overall					Mounting
For Shaft Dia.	Ht.	Lg.	Wd.	Bearing Wd.	Flange Thick.	Hole Dia.	Hole Ctr.-to-Ctr.	Dynamic Radial Load Cap.	Temp. Range, °F	Alignment Style		Each
Acetal Plastic Bearings with Aluminum Housing
12mm	28.5mm	57mm	16mm	16mm	4.8mm	7mm	44.5mm	60 lbs. @ 120 rpm	-40° to 180°	Self Aligning	00000000	000000

High-Speed Light Duty Dry-Running Mounted
Sleeve Bearings with Two-Bolt Flange

Made of acetal with a PTFE filling, these light duty bearings handle speeds twice as fast as standard acetal bearings can. The material is self-lubricating for less wear and longer life in your system. These bearings swivel to compensate for small amounts of shaft misalignment.

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

	Overall					Mounting
For Shaft Diameter	Height	Length	Width	Bearing Width	Flange Thickness	Hole Diameter	Hole Center-to-Center	Dynamic Radial Load Capacity	Temperature Range, °F	Alignment Style		Each
PTFE-Filled Acetal Plastic Bearings with Black-Oxide Steel Housing
12mm	36.5mm	59.5mm	16.5mm	15mm	1.5mm	5.6mm	45.2mm	140 lbs. @ 120 rpm	-40° to 180°	Self Aligning	0000000	000000

High-Speed Dry-Running Mounted Sleeve Bearings with Two-Bolt Flange

Handling speeds twice as fast as standard mounted sleeve bearings while limiting wear on your system, these bearings are made of PTFE-filled acetal. They don’t require any additional lubrication. To compensate for minor shaft misalignment, they’re self-aligning. Mount them using their two-bolt flange.

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.

	Overall					Mounting
For Shaft Diameter	Height	Length	Width	Bearing Width	Flange Thickness	Hole Diameter	Hole Center-to-Center	Dynamic Radial Load Capacity	Temperature Range, °F	Alignment Style		Each
PTFE Plastic-Filled Acetal Bearings with Aluminum Housing
12mm	41.3mm	82.6mm	16mm	16mm	6.4mm	10.3mm	63.5mm	140 lbs. @ 120 rpm	-40° to 180°	Self Aligning	00000000	000000

Oil-Embedded Mounted Sleeve Bearings with Two-Bolt Flange

Startup friction causes these porous bronze bearings to release a thin layer of oil on the bearing’s surface. Bearings are self-aligning to compensate for shaft misalignment.

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.

	Overall					Mounting
For Shaft Dia.	Ht.	Lg.	Wd.	Bearing Wd.	Flange Thick.	Hole Dia.	Hole Ctr.-to-Ctr.	Dynamic Radial Load Cap.	Temp. Range, °F	Alignment Style	Lubrication		Each
840 Bearing Bronze Bearings with Aluminum Housing
12mm	41.5mm	82.5mm	16mm	16mm	6.5mm	10.5mm	63.5mm	510 lbs. @ 120 rpm	-20° to 200°	Self Aligning	Lubricated	0000000	000000