Item # NAO-45X72X40ZW, Double Row Machined-Ring Needle Roller Bearings - Separable Type w/ Inner Ring On NTN Bearing Corp. of America

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	Item # NAO-45X72X40ZW, Double Row Machined-Ring Needle Roller Bearings - Separable Type w/ Inner Ring

Unit of Measure: Imperial Metric Both

Order Now · Technical Specifications · Dimensional Specifications

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Ordering Options		Find a Distributor Contact NTN Customer Support Specialist Order through NTN DOL (Authorized Distributors Only)

Technical Specifications

Type		Machined-Ring Needle Roller Bearing - Separable Type

Bore Type		Round

Material		High Carbon Chrome Steel

Cage Material		Steel

Limiting Speed - Oil		7500 RPM

Limiting Speed - Grease		4800 RPM

Precision		ISO Class 0

Configuration		Two

Enclosure		Open

Bearing Design		w/ Inner Ring

Oil Hole		w/ Oil Hole

Radial Internal Clearance		CN

Static Load Rating		31500 lbf 140000 N 140.00 kN

Dynamic Load Rating		15000 lbf 66500 N 66.50 kN

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

Dimensional Specifications

		Double Row Machined-Ring Needle Roller Bearings - Separable Type w/ Inner Ring - Dimensions larger image

d		1.7717 in 45.000 mm

D		2.8346 in 72.000 mm

F		2.1654 in 55.000 mm

E		2.4803 in 63.000 mm

C		1.5748 in 40.000 mm

r		0.0236 in 0.600 mm

da min		1.9291 in 49.000 mm

Da max		2.6772 in 68.000 mm

db min		2.4567 in 62.400 mm

Db max		2.1969 in 55.800 mm

ras max		0.0236 in 0.600 mm

Item # NAO-45X72X40ZW, Double Row Machined-Ring Needle Roller Bearings - Separable Type w/ Inner Ring