MIL-B-81934 Bushings | McMaster-Carr

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Military Specification

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Shaft Diameter

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17-4 PH Stainless Steel

PTFE

Dynamic Radial Load Capacity @ Speed

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17-4 PH Stainless Steel

Plain Bearing Type

Performance

P Max

For Load Direction

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Shaft Mount Type

Bearing Type

For Housing ID

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19 Products

About Sleeve Bearings

Choose a sleeve bearing that matches your load and speed requirements and that's right for your environment.

Mil. Spec. Dry-Running Metal-Reinforced Plastic Sleeve Bearings

These bearings are manufactured and tested to strict U.S. military standards for material and construction. Combine slippery plastic with the strength of metal. The PTFE core is naturally slippery, so you’ll never have to add lubricant. These bearings also keep your workspace clean with no lubricant to drip or flake and attract dust. Compared to all-metal bearings, they are lighter.

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.

PTFE with 17-4 PH Stainless Steel Shell—The highest load capacity of any sleeve bearing we offer. 17-4 PH stainless steel offers good corrosion resistance but is heavier than aluminum.

	For Housing ID	Lg.	Dynamic Radial Load Cap. @ Speed	Temp. Range, ° F	Specs. Met		Each
PTFE with 17-4 PH Stainless Steel Shell



	3/8"	1/2"	1/4"	1,900 lb. @ 40 rpm	-60 to 320	SAE AS81820, SAE AS81934, MIL-B-81820, MIL-B-81934	000000	000000


	3/8"	1/2"	3/8"	2,850 lb. @ 40 rpm	-60 to 320	SAE AS81820, SAE AS81934, MIL-B-81820, MIL-B-81934	000000	00000
	3/8"	1/2"	1/2"	3,800 lb. @ 40 rpm	-60 to 320	SAE AS81820, SAE AS81934, MIL-B-81820, MIL-B-81934	000000	00000
	3/8"	1/2"	9/16"	4,250 lb. @ 40 rpm	-60 to 320	SAE AS81820, SAE AS81934, MIL-B-81820, MIL-B-81934	000000	00000
	1/2"	5/8"	3/16"	1,400 lb. @ 40 rpm	-60 to 320	SAE AS81820, SAE AS81934, MIL-B-81820, MIL-B-81934	000000	00000
	1/2"	5/8"	11/32"	2,600 lb. @ 40 rpm	-60 to 320	SAE AS81820, SAE AS81934, MIL-B-81820, MIL-B-81934	000000	00000
	1/2"	5/8"	3/8"	2,850 lb. @ 40 rpm	-60 to 320	SAE AS81820, SAE AS81934, MIL-B-81820, MIL-B-81934	000000	00000
	1/2"	5/8"	7/16"	3,300 lb. @ 40 rpm	-60 to 320	SAE AS81820, SAE AS81934, MIL-B-81820, MIL-B-81934	000000	00000
	1/2"	5/8"	7/8"	6,650 lb. @ 40 rpm	-60 to 320	SAE AS81820, SAE AS81934, MIL-B-81820, MIL-B-81934	000000	00000
	5/8"	13/16"	5/8"	9,500 lb. @ 20 rpm	-60 to 320	SAE AS81820, SAE AS81934, MIL-B-81820, MIL-B-81934	0000000	00000
	5/8"	13/16"	1 1/4"	19,050 lb. @ 20 rpm	-60 to 320	SAE AS81820, SAE AS81934, MIL-B-81820, MIL-B-81934	0000000	000000


	11/16"	7/8"	1"	15,250 lb. @ 20 rpm	-60 to 320	SAE AS81820, SAE AS81934, MIL-B-81820, MIL-B-81934	0000000	000000
	3/4"	15/16"	3/4"	11,450 lb. @ 20 rpm	-60 to 320	SAE AS81820, SAE AS81934, MIL-B-81820, MIL-B-81934	0000000	000000
	7/8"	1 1/16"	1"	15,250 lb. @ 20 rpm	-60 to 320	SAE AS81820, SAE AS81934, MIL-B-81820, MIL-B-81934	0000000	000000
	1"	1 3/16"	5/8"	9,500 lb. @ 20 rpm	-60 to 320	SAE AS81820, SAE AS81934, MIL-B-81820, MIL-B-81934	0000000	000000
	1"	1 3/16"	3/4"	11,450 lb. @ 20 rpm	-60 to 320	SAE AS81820, SAE AS81934, MIL-B-81820, MIL-B-81934	0000000	000000
	1"	1 3/16"	1 1/8"	17,150 lb. @ 20 rpm	-60 to 320	SAE AS81820, SAE AS81934, MIL-B-81820, MIL-B-81934	0000000	000000
	1 1/4"	1 7/16"	1"	30,550 lb. @ 10 rpm	-60 to 320	SAE AS81820, SAE AS81934, MIL-B-81820, MIL-B-81934	0000000	000000
	1 1/4"	1 7/16"	1 1/2"	45,800 lb. @ 10 rpm	-60 to 320	SAE AS81820, SAE AS81934, MIL-B-81820, MIL-B-81934	0000000	000000