2.57" OD Bearings | McMaster-Carr

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System of Measurement

OD

0.1562" to 2.7500"

1/2" to 3 3/16"

1/2" to 20 1/2"

3/4" to 13 3/4"

7/8" to 11 7/8"

7/8" to 14 3/4"

7/8" to 23 5/8"

1 1/32" to 9 7/8"

1 1/32" to 11 1/32"

1 1/32" to 11 7/8"

1 1/4" to 4 1/2"

1 1/2" to 4 1/4"

1 1/2" to 11 7/8"

1 1/2" to 15 3/4"

1 1/2" to 17 3/4"

1 1/2" to 19 3/4"

2 1/4" to 7 1/4"

2 1/4" to 15 3/4"

2 1/2" to 5 3/4"

2 3/4" to 9 1/2"

3 1/4" to 11 3/4"

4 1/4" to 14 3/4"

4.0000 mm to 69.0000 mm

Shape

ID

Wall Thickness

Material

52100 Alloy Steel

Yield Strength

100,000 psi to 199,999 psi

Length

Specifications Met

Fabrication

Hardness

Certificate Type

Material Certificate with Traceable Lot Number

REACH

RoHS

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Maximum Hardness After Heat Treatment

Heat Treatable

Elongation

Appearance

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About Carbon Steel, Alloy Steel, Spring Steel, and Cast Iron

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Hard Wear-Resistant 52100 Alloy Steel Tubes

Yield Strength: See table
Hardness: See table
Heat Treatable: Yes
Maximum Hardness After Heat Treatment: Rockwell C60
Specifications Met: ASTM A295

Easier to machine than 52100 alloy steel rods, these extremely hard and wear-resistant tubes are often used to create bearings, bushings, and other cylindrical parts that are under constant stress. They’re also known as chrome steel.

For technical drawings and 3-D models, click on a part number.

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

0.472" Wall Thickness (-0.0236" to 0.0236" Tolerance)
OD	OD Tolerance	ID	ID Tolerance	Yield Strength, psi	Hardness		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.

2.57"	-0.008" to 0.008"	1.627"	-0.01" to 0.01"	140,000	Rockwell B100	0000000	0000000	0000000	0000000

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)