Item # NNU4940, Double Row Cylindrical Roller Bearing w/ Cylindrical Bore

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	Item # NNU4940, 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

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Ordering Options		Contact NTN Customer Relations

Technical Specifications

Type		Cylindrical Roller Bearing

Bore Type		Cylindrical

Material		Hardened Alloy Steel

Cage Material		High Strength, 2 piece, Machined Brass

Limiting Speed - Oil		2400 RPM

Limiting Speed - Grease		2100 RPM

Precision		ISO Class 0

Configuration		Two

Tolerance		ISO Class 0 (RBEC 1)

Oil Hole		w/o Oil Hole

Radial Internal Clearance		CN

Static Load Rating		265000 lbf 1180000 N 1180.00 kN

Dynamic Load Rating		125000 lbf 555000 N 555.00 kN

Enclosure		Open

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		7.8740 in 200.000 mm

D		11.0236 in 280.000 mm

B		3.1496 in 80.000 mm

C		3.1496 in 80.000 mm

Fw		8.8583 in 225.000 mm

r		0.0827 in 2.100 mm

da min		8.3071 in 211.000 mm

db min		8.5827 in 218.000 mm

Da max		10.5906 in 269.000 mm

Db min		10.3937 in 264.000 mm

Db max		10.5906 in 269.000 mm

ras max		0.0787 in 2.000 mm

Item # NNU4940, Double Row Cylindrical Roller Bearing w/ Cylindrical Bore - Type NNU