Item # N311, Cylindrical Roller Bearing - Inner Ring w/ Two Ribs, Separable, Plain Outer Ring

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	Item # N311, Cylindrical Roller Bearing - Inner Ring w/ Two Ribs, Separable, Plain Outer Ring - N Type

Unit of Measure: Imperial Metric Both

Order Now · Technical Specifications · Dimensional Specifications

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

Technical Specifications

Type		Cylindrical Roller Bearing

Bore Type		Round

Material		Hardened Alloy Steel

Cage Material		Pressed Steel

Limiting Speed - Oil		7000 RPM

Limiting Speed - Grease		5900.0 RPM

Precision		ISO Class 0

Configuration		One

Oil Hole		w/o Oil Hole

Radial Internal Clearance		CN

Static Load Rating		25000 lbf 111000 N 111.00 kN

Dynamic Load Rating		25000 lbf 111000 N 111.00 kN

Enclosure		Open

Weight		3.115 lb 1.413 kg

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

Dimensional Specifications

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

d		2.1654 in 55.000 mm

D		4.7244 in 120.000 mm

B		1.1417 in 29.000 mm

Ew		4.1142 in 104.500 mm

J		3.0394 in 77.200 mm

r		0.0787 in 2.000 mm

da min		2.5197 in 64.000 mm

db min		2.5197 in 64.000 mm

Da max		4.3701 in 111.000 mm

Db max		4.3701 in 111.000 mm

Db min		4.3701 in 111.000 mm

r1as max		0.0787 in 2.000 mm

Item # N311, Cylindrical Roller Bearing - Inner Ring w/ Two Ribs, Separable, Plain Outer Ring - N Type