Item # NN3021KC1NAP4, Double Row Cylindrical Roller Bearing w/ Tapered Bore

Search Catalog



	All Categories Double Row Cylindrical Roller Bearings


	Item # NN3021KC1NAP4, 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

Order Now

Ordering Options		Order Online through NTN DOL Contact NTN Customer Relations Search for a Licensed Distributor

Technical Specifications

Type		Cylindrical Roller Bearing

Bore Type		Tapered

Material		Hardened Alloy Steel

Cage Material		High Strength, 2 piece, Machined Brass

Limiting Speed - Oil		4500 RPM

Limiting Speed - Grease		3800 RPM

Taper		1:12

Precision		ISO Class 4

Configuration		Two

Oil Hole		w/o Oil Hole

Radial Internal Clearance		C1NA

Static Load Rating		72000 lbf 320000 N 320.00 kN

Dynamic Load Rating		44500 lbf 198000 N 198.00 kN

Enclosure		Open

Weight		6.131 lb 2.781 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		4.1339 in 105.000 mm

D		6.2992 in 160.000 mm

B		1.6142 in 41.000 mm

C		1.6142 in 41.000 mm

Ew		5.7480 in 146.000 mm

r		0.0787 in 2.000 mm

da min		4.4882 in 114.000 mm

db min		4.6063 in 117.000 mm

Da max		5.8268 in 148.000 mm

Db min		5.8268 in 148.000 mm

Db max		5.9449 in 151.000 mm

ras max		0.0787 in 2.000 mm

Item # NN3021KC1NAP4, Double Row Cylindrical Roller Bearing w/ Tapered Bore - Type NN