Item # NN3072K, Double Row Cylindrical Roller Bearing w/ Tapered Bore

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	Item # NN3072K, 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		1200 RPM

Limiting Speed - Grease		1000 RPM

Taper		1:12

Precision		ISO Class 0

Configuration		Two

Oil Hole		w/o Oil Hole

Radial Internal Clearance		CN

Static Load Rating		740000 lbf 3300000 N 3300.00 kN

Dynamic Load Rating		370000 lbf 1650000 N 1650.00 kN

Enclosure		Open

Weight		235.894 lb 107.000 kg

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		14.1732 in 360.000 mm

D		21.2598 in 540.000 mm

B		5.2756 in 134.000 mm

C		5.2756 in 134.000 mm

Ew		19.4094 in 493.000 mm

r		0.1969 in 5.000 mm

da min		14.9606 in 380.000 mm

db min		15.3937 in 391.000 mm

Da max		19.5669 in 497.000 mm

Db min		19.5669 in 497.000 mm

Db max		20.4724 in 520.000 mm

ras max		0.1575 in 4.000 mm

Item # NN3072K, Double Row Cylindrical Roller Bearing w/ Tapered Bore - Type NN