Item # MA1220EX, Cylindrical Roller Bearing - Separable, Plain Inner Ring, Outer Ring w/ Two Ribs On NTN Bearing Corp. of America

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	Item # MA1220EX, Cylindrical Roller Bearing - Separable, Plain Inner Ring, Outer Ring w/ Two Ribs

Unit of Measure: Imperial Metric Both

Order Now · Technical Specifications · Dimensional Specifications

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Ordering Options		Find a Distributor Contact NTN Customer Relations Order through NTN DOL (Authorized Distributors Only)

Technical Specifications

Type		Cylindrical Roller Bearing

Bore Type		Round

Material		Hardened Alloy Steel

Cage Material		X Bar Composite Steel

Configuration		One

Tolerance		ISO Class 0 (RBEC 1)

Oil Hole		w/o Oil Hole

Radial Internal Clearance		CN

Static Load Rating		64500 lbf 286000 N 286.00 kN

Dynamic Load Rating		50500 lbf 224000 N 224.00 kN

Enclosure		Open

Operating Temperature Range		-40 to 250 ºF -40 to 120 ºC

Dimensional Specifications

		Cylindrical Roller Bearing - Separable, Plain Inner Ring, Outer Ring w/ Two Ribs - Dimensions larger image

B		3.9370 in 100.000 mm

D		7.0866 in 180.000 mm

W		1.3386 in 34.000 mm

A		4.7642 in 121.010 mm

H		6.0701 in 154.180 mm

R		0.1559 in 3.960 mm

U (Plain Rings)		4.5709 in 116.100 mm

V (Rib Rings)		4.7598 in 120.900 mm

X (Plain Rings)		6.5787 in 167.100 mm

Z (Rib Rings)		6.3386 in 161.000 mm

r		0.0799 in 2.030 mm

Item # MA1220EX, Cylindrical Roller Bearing - Separable, Plain Inner Ring, Outer Ring w/ Two Ribs