0.1255" ID Bearings | McMaster-Carr

Install and forget these self-lubricating bearings. All are made from porous metal and saturated with oil to reduce maintenance and downtime. A good all-around choice, they are used in everything from palm-sized fans in electronics to tire-sized pulleys. Although these bearings will work in most conditions, oil may drip away if temperatures get too high. Consider a graphite-lubricated bearing for higher temperatures or places where you can’t afford the mess. All are fabricated, lubricated, and inspected in the U.S.

With no moving parts, sleeve bearings are the simplest way to support the load of a rotating shaft while reducing friction. Also known as plain bearings.

841 Bearing Bronze—A classic choice for a starter pick. Also known as SAE 841 bearings.

Synthetic Oil Base—A high-quality lubricant makes all the difference. Synthetic oil is less sensitive to temperature changes than mineral oil, so it won't get runny and leak away at higher temperatures.

	For Housing ID	Lg.	Dynamic Radial Load Cap. @ Speed	Base Oil	Temp. Range, ° F		Each
841 Bearing Bronze



	1/8"	3/16"	1/8"	31 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6391K611	00000


	1/8"	3/16"	1/4"	60 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6391K753	0000
	1/8"	3/16"	5/16"	75 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6391K755	0000
	1/8"	3/16"	1/2"	125 lb. @ 120 rpm	Synthetic Oil	-35 to 300	6391K754	0000

Oil-Embedded Panel-Mount Sleeve Bearings

Reduce upkeep with sleeve bearings that lubricate themselves. Made from porous, oil-saturated bronze, they release a thin film of lubrication upon startup to keep shafts spinning. With no moving parts, sleeve bearings withstand dusty, dirty environments better than ball or roller bearings. However, with more friction generated, they're less effective at high speeds. They mount securely in thin panels.

Steel Housing—Best for dry environments as moisture will cause them to rust.

Clinch Panel Mount—Secure these self-clinching bearings into sheet metal panels for a permanent hold. Install them using an air-powered or hydraulic press—no need for precision-bored holes or machined mounts. They're not for use in plastic panels.

Misalignment Capability—Bearings compensate for as much shaft misalignment as the degree listed. This extends the life of the bearing and protects against wear if shafts are slightly askew.

	Flange OD	Flange Thk.	Dynamic Radial Load Cap. @ Speed	Misalignment Capability		Each
840 Bearing Bronze Bearing with Steel Housing







	Clinch Panel Mount

	1/8"	0.344"	0.29"	0.39"	0.04"	70 lb. @ 120 rpm	5°	2032N11	000000

Press-Fit Reamer Bushings

With ID tolerances sized specifically for reamers, these bushings ensure steady and precise hole finishing. Press them into a fixture plate with a manual or hydraulic press for permanent installation. Also known as headless bushings, these ANSI-type P bushings don’t need counterboring to be mounted flush. They are made of hardened, ground steel that holds its shape and resists wear, so they last for many cycles without needing to be replaced.

				Tolerance
ID	OD	Lg.	For Reamer Dia.	ID	OD	Lg.	Drill Bushing Type	Material	Hardness		Each
0.1255"	1/4"	1/4"	0.1255"	0.0005" to 0.0008"	0.0013" to 0.0016"	-0.01" to 0.01"	P	Steel	Rockwell C61	9473N192	00000