Item # NN3068K, Double Row Cylindrical Roller Bearing w/ Tapered Bore

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	Item # NN3068K, 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		1300 RPM

Limiting Speed - Grease		1100 RPM

Taper		1:12

Precision		ISO Class 0

Configuration		Two

Oil Hole		w/o Oil Hole

Radial Internal Clearance		CN

Static Load Rating		720000 lbf 3200000 N 3200.00 kN

Dynamic Load Rating		365000 lbf 1620000 N 1620.00 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		13.3858 in 340.000 mm

D		20.4724 in 520.000 mm

B		5.2362 in 133.000 mm

C		5.2362 in 133.000 mm

Ew		18.6220 in 473.000 mm

r		0.1969 in 5.000 mm

da min		14.1732 in 360.000 mm

db min		14.6063 in 371.000 mm

Da max		18.7795 in 477.000 mm

Db min		18.7795 in 477.000 mm

Db max		19.6850 in 500.000 mm

ras max		0.1575 in 4.000 mm

Item # NN3068K, Double Row Cylindrical Roller Bearing w/ Tapered Bore - Type NN