Item # NN4964, Double Row Cylindrical Roller Bearing w/ Cylindrical Bore

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	Item # NN4964, Double Row Cylindrical Roller Bearing w/ Cylindrical Bore - Type NN

The rollers in the NN type bearing are guided by the ribs of the inner ring.

Unit of Measure: Imperial Metric Both

Order Now · Technical Specifications · Dimensional Specifications

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Ordering Options		Contact NTN Customer Relations

Technical Specifications

Type		Cylindrical Roller Bearing

Bore Type		Cylindrical

Material		Hardened Alloy Steel

Cage Material		High Strength, 2 piece, Machined Brass

Limiting Speed - Oil		1400 RPM

Limiting Speed - Grease		1200 RPM

Precision		ISO Class 0

Configuration		Two

Oil Hole		w/o Oil Hole

Radial Internal Clearance		CN

Static Load Rating		670000 lbf 2970000 N 2970.00 kN

Dynamic Load Rating		279000 lbf 1240000 N 1240.00 kN

Enclosure		Open

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

Dimensional Specifications

		Double Row Cylindrical Roller Bearing w/ Cylindrical Bore - Type NN - Dimensions larger image

d		12.5984 in 320.000 mm

D		17.3228 in 440.000 mm

B		4.6457 in 118.000 mm

C		4.6457 in 118.000 mm

Ew		16.1811 in 411.000 mm

r		0.1181 in 3.000 mm

da min		13.1102 in 333.000 mm

db min		13.5039 in 343.000 mm

Db min		16.2992 in 414.000 mm

Db max		16.8110 in 427.000 mm

ras max		0.0984 in 2.500 mm

Item # NN4964, Double Row Cylindrical Roller Bearing w/ Cylindrical Bore - Type NN