5" ID Bearings | McMaster-Carr

Support complex movement in multiple directions with a single compact bearing. The balls distribute weight at four points, so these bearings handle radial, thrust, and moment loads all at once. For example, you’ll often find them in robot arms, which rotate, extend, and twist while supporting an object’s weight. Thinner than two standard angular contact ball bearings paired together, these bearings squeeze into tight spaces. They’re commonly paired with large hollow shafts to run electrical wire and other lines.

Open—With no rubber seal to block airflow, these bearings dissipate heat quickly, extending the life of the lubricant and reducing friction over time.

Steel—Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.

ABEC Rating—Bearings with an ABEC rating meet industry tolerance standards established by the Annular Bearing Engineers Committee (ABEC). They're rated on a scale from 1 to 9. The higher the rating, the tighter the tolerance. Bearings rated ABEC 1 or 3 are precise enough for most applications. If your application consistently runs at high speeds or requires high accuracy, consider bearings rated ABEC 5 or higher, since they generate less friction and heat.

					Dynamic Load Cap.					Temp. Range, ° F
	For Shaft Dia.	For Housing ID	Wd.	ABEC Rating	Radial, lb.	Thrust, lb.	Moment, ft·lbf	Max. Rotation Speed, rpm	Contact Angle	Min.	Max.	Inner Ring Type		Each
Open







				Steel

				5"	5 1/2"	1/4"	1F	850	1,400	130	500	30°	-60	250	Standard	6656K16	0000000


				5"	5 5/8"	5/16"	1F	1,200	1,950	200	500	30°	-60	250	Standard	6656K25	00000000

Multipurpose 932 Bearing Bronze Round Tubes

Balancing strength, corrosion resistance, and machinability, 932 is everything you want in a bearing bronze. It's most commonly made into thrust bearings and bushings. Also known as SAE 660.

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

	ID	Temper Designation	Specs. Met		3" Long	6 1/2" Long	13" Long
1/2" Thick Wall



	6"	5"	M07	ASTM B505	8911K372	0000000	0000000	0000000


	1" Thick Wall



			7"	5"	M07	ASTM B505	8911K404	000000	000000	00000000

Highly Wear-Resistant Machinable Cast Nylon Round Tubes

The addition of MDS gives these tubes exceptional wear resistance along with a self-lubricating surface. They're made of cast nylon 6, making them easier to machine and better electrical insulators than other MDS-filled nylon tubes. Tubes can be used to fabricate pulleys, bushings, and bearings installed in hard-to-reach areas where adding a lubricant would be difficult. This material is comparable to Nylatron and Nycast.

Oversized Tolerance—Oversized tubes have an oversized OD and an undersized ID for finishing to the sizes listed.

	Fabrication	Min. Temp.	Max. Temp., ° F	Tensile Strength, psi	Impact Strength, ft·lbf/in	Color		Each
Oversized Tolerance







	1" Thick Wall

	7"	5"	1	Cast	Not Rated	230	10,000	1.4	Black	4363N179	0000000


	7"	5"	2	Cast	Not Rated	230	10,000	1.4	Black	4363N181	000000

Corrosion-Resistant 954 Bearing Bronze Round Tubes

One of the most corrosion-resistant bearing bronze alloys, 954 withstands everything from sea water to sulfuric acid. It's often turned into bearings and valve bodies for demanding environments such as salt mines. Also known as aluminum bronze. If you need similar corrosion resistance with even greater strength, consider 955 bearing bronze instead.

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

	ID	Temper Designation	Specs. Met		6 1/2" Long	13" Long
1/2" Thick Wall



	6"	5"	M07	ASTM B505	8916K95	0000000	0000000

Highly Machinable 936 Bearing Bronze Round Tubes

With almost twice as much lead, 936 bearing bronze machines more easily than 932. It's often made into bearings and bushings for oil pumps and gasoline engines. Also known as modified SAE 64.

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

	ID	Temper Designation	Specs. Met		6" Long	13" Long
1/2" Thick Wall



	6"	5"	M07	ASTM B505	8918K143	0000000	0000000

Oil-Embedded 841 Bearing Bronze Round Tubes

With a porous surface that releases oil over time, this bronze lubricates itself. Turn it into parts that you can't easily access to relubricate, such as bearings, well pumps, and turbine blades. The oil may burn away if temperatures climb too high, however. For extreme heat up to 700° F, consider graphite-embedded bearing bronze instead.

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

	ID	Temper Designation	Specs. Met		3" Long	6 1/2" Long
1" Thick Wall



	7"	5"	Not Rated	ASTM B438	8931K611	0000000	0000000