Item # NN4920K, Double Row Cylindrical Roller Bearing w/ Tapered Bore

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	Item # NN4920K, Double Row Cylindrical Roller Bearing w/ Tapered 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		Tapered

Material		Hardened Alloy Steel

Cage Material		High Strength, 2 piece, Machined Brass

Limiting Speed - Oil		5100 RPM

Limiting Speed - Grease		4300 RPM

Taper		1:12

Precision		ISO Class 0

Configuration		Two

Oil Hole		w/o Oil Hole

Radial Internal Clearance		CN

Static Load Rating		58500 lbf 260000 N 260.00 kN

Dynamic Load Rating		29500 lbf 131000 N 131.00 kN

Enclosure		Open

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

Dimensional Specifications

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

d		3.9370 in 100.000 mm

D		5.5118 in 140.000 mm

B		1.5748 in 40.000 mm

C		1.5748 in 40.000 mm

Ew		5.0787 in 129.000 mm

r		0.0433 in 1.100 mm

da min		4.1929 in 106.500 mm

db min		4.3307 in 110.000 mm

Da max		5.1575 in 131.000 mm

Db min		5.1575 in 131.000 mm

Db max		5.2559 in 133.500 mm

ras max		0.0394 in 1.000 mm

Item # NN4920K, Double Row Cylindrical Roller Bearing w/ Tapered Bore - Type NN