0.509" ID Bearings | McMaster-Carr

Made of a graphite and metal alloy, these bearings stay slippery at high temperatures where oil burns off and other bearings fail. With no need for refills, they require little to no maintenance. You’ll find them in pumps, propellers, and mixers that spin near steam or inside ovens. However, graphite may eventually flake off, dropping flecks and leaving smudges. If you need a spic-and-span space, consider dry-running bearings made of slippery plastic instead. 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.

Extreme-Temperature Chemical-Resistant Graphalloy—From the freezer to the furnace, these bearings glide in extreme temperatures where other bearings grind and fail. They resist decay caused by the strong acids or bases found in cleaning fluids. They even work underwater without swelling or warping.

	For Housing ID	Lg.	Dynamic Radial Load Cap. @ Speed	Temp. Range, ° F		Each
Extreme-Temperature Chemical-Resistant Graphalloy



	1/2"	7/8"	5/8"	230 lb. @ 120 rpm	-450 to 750	7943K32	000000

Weldable 4130 Alloy Steel Round Tubes

Also known as chrome-moly steel, these 4130 alloy steel round tubes have low carbon content for good weldability. They’re often used for roll cages and frames. To increase their wear resistance, you can harden them with heat treating.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

	ID	Fabrication	Heat Treatable	Yield Strength, psi	Hardness	Max. Hardness After Heat Treatment	Specs. Met		1 ft. Long	3 ft. Long	4 ft. Long	6 ft. Long	8 ft. Long
0.058" Thick Wall



	5/8"	0.509"	Seamless	Yes	70,000	Rockwell C16 (Medium)	Rockwell C49	SAE AMS6360, SAE AMS-T-6736	89955K148	000000	000000	000000	000000	000000