12.1mm ID Bearings | McMaster-Carr

Made of naturally slippery plastic so you’ll never have to add lubricant. They’re ideal for clean environments where you need to prevent oil drips or graphite flakes. Compared to metal bearings, they are lighter and will never rust.

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.

High-Load Moisture-Resistant Rulon LR—Won’t swell in wet or humid places, similar to acetal, but can support higher loads. These bearings also operate smoothly from cryogenic to oven-like temperatures.

								Each
	For Shaft Dia., mm	For Housing ID, mm	Lg., mm	Dynamic Radial Load Cap. @ Speed	Color	Temp. Range, ° F		1-24	25-99	100-Up
High-Load Moisture-Resistant Rulon LR



		12	15	12	150 lb. @ 120 rpm	Maroon	-400 to 550	7763K11	000000	000000	000000


		12	16	15	185 lb. @ 120 rpm	Maroon	-400 to 550	7763K4	00000	00000	00000
		12	16	20	250 lb. @ 120 rpm	Maroon	-400 to 550	7763K16	00000	00000	00000
		12	18	10	125 lb. @ 120 rpm	Maroon	-400 to 550	7763K5	00000	00000	00000
		12	18	25	310 lb. @ 120 rpm	Maroon	-400 to 550	7763K7	00000	00000	00000

Metric Press-Fit Drill Bushings

Also known as jig bushings, these metric drill bushings fit inside fixture plate holes to precisely guide drill bits, counterbores, reamers, and other cutting tools. They improve accuracy so that your drilled holes and cuts are consistent from part to part. Known for their versatility, drill bushings are also used as spacers, shims, and machinery bushings. These bushings are made of hardened, ground steel that holds its shape and resists wear, so they last for many cycles without needing to be replaced.

All bushings have a chamfer on the outside that centers the bushing as you place it into the hole. Press into place with a manual or hydraulic press. Since the bushing is sized slightly larger than the hole for an extremely tight fit, it’ll stay put permanently. These are ANSI Type PM bushings—also known as headless bushings—which means you don’t need to counterbore the hole to mount them flush.

They also have an internal chamfer that makes it easy to insert bits, pins, and punches without damaging the bushing or misaligning tools.

Don't see the size you need? Additional sizes are available.

Both Ends—Bushings with an internal chamfer on both ends allow you to insert tools no matter which end of the bushing is inserted into the jig. However, having an internal chamfer on the bottom of your bushing may cause shavings to get caught and bind as you remove the bit.

DIN 179—DIN 179 bushings meet dimensional and material standards that make sure they're compatible with other parts and tools. Although DIN 179 is no longer an active standard, it's still a common reference point for designers.

						Tolerance, mm								Each
	OD, mm	Lg., mm	Internal Chamfer	For Drill Bit Size, mm	For Drill Bit Size Decimal Equiv.	ID	OD	Lg.	Drill Bushing Type	Material	Hardness	Specs. Met		1-5	6-11	12-Up
12.1 mm ID



		22	16	One End	12.1	0.4764"	0.016 to 0.034	0.015 to 0.028	-0.2 to 0.2	PM	Steel	Rockwell C61	DIN 179	96990A404	000000	000000	000000


		22	16	Both Ends	12.1	0.4764"	0.016 to 0.034	0.015 to 0.028	-0.2 to 0.2	PM	Steel	Rockwell C61	—	97060A371	00000	00000	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. They’re ANSI Type H bushings, also known as headed bushings. A flanged head acts as a stop, so these bushings won’t move as you push down your drill bit, reamer, or other cutting bit. Use them even in jigs made of thin or soft materials—the head adds support to protect your jig from damage caused by heavy use. Drill bushings ensure accurate, consistent cuts and drilled holes from one part to the next. They’re also used as spacers, shims, and machinery bushings. Made of hardened, ground steel, these bushings hold their shape and resist wear, so they last for many cycles without needing to be replaced.

These bushings meet DIN 172 dimensional standards. This standard is no longer active, but it’s often used as a reference point for making sure parts are compatible with other parts and tools.

To install, fit the bushing into a hole in your jig. In a standard hole, the head will sit above the jig plate; to mount flush, install in a countersunk hole. A chamfered edge on the bottom of the bushing helps center the bushing in the hole. Once it’s centered, press the bushing into the hole with a hydraulic or lever press.

					Head, mm		Tolerance, mm								Each
	OD, mm	Lg., mm	For Drill Bit Size, mm	For Drill Bit Size Decimal Equiv.	OD	Thk.	ID	OD	Lg.	Drill Bushing Type	Material	Hardness	Specs. Met		1-5	6-11	12-Up
12.1 mm ID



		22	12	12.1	0.4764"	26	4	0.016 to 0.034	0.015 to 0.028	-0.2 to 0.2	H	Steel	Rockwell C61	DIN 172	96977A423	000000	000000	000000


		22	24	12.1	0.4764"	26	4	0.016 to 0.034	0.015 to 0.028	-0.2 to 0.2	H	Steel	Rockwell C61	DIN 172	96977A424	00000	00000	00000
		22	32	12.1	0.4764"	26	4	0.016 to 0.034	0.015 to 0.028	-0.3 to 0.3	H	Steel	Rockwell C61	DIN 172	96977A425	00000	00000	00000