Item # NNU4944C3, Double Row Cylindrical Roller Bearing w/ Cylindrical Bore

Search Catalog



	All Categories Double Row Cylindrical Roller Bearings


	Item # NNU4944C3, Double Row Cylindrical Roller Bearing w/ Cylindrical Bore - Type NNU

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		Cylindrical

Material		Hardened Alloy Steel

Cage Material		High Strength, 2 piece, Machined Brass

Limiting Speed - Oil		2200 RPM

Limiting Speed - Grease		1900 RPM

Precision		ISO Class 0

Configuration		Two

Tolerance		ISO Class 0 (RBEC 1)

Oil Hole		w/o Oil Hole

Radial Internal Clearance		C3

Static Load Rating		292000 lbf 1300000 N 1300.00 kN

Dynamic Load Rating		132000 lbf 585000 N 585.00 kN

Enclosure		Open

Weight		37.258 lb 16.900 kg

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

Dimensional Specifications

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

d		8.6614 in 220.000 mm

D		11.8110 in 300.000 mm

B		3.1496 in 80.000 mm

C		3.1496 in 80.000 mm

Fw		9.6457 in 245.000 mm

r		0.0827 in 2.100 mm

da min		9.0945 in 231 mm

db min		9.3701 in 238.000 mm

Da max		11.378 in 289 mm

Db min		11.1811 in 284.000 mm

Db max		11.3780 in 289.000 mm

ras max		0.0787 in 2.000 mm

Item # NNU4944C3, Double Row Cylindrical Roller Bearing w/ Cylindrical Bore - Type NNU