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Unit of Measure

Technical Specifications

Type

Needle Roller Bearing

Bore Type

Round

Material

High Carbon Chrome Steel

Cage Material

Steel

Limiting Speed - Oil

950 RPM

Limiting Speed - Grease

650 RPM

Precision

ISO Class 0

Configuration

One

Enclosure

Open

Bearing Design

w/ Inner Ring

Oil Hole

w/ Oil Hole

Radial Internal Clearance

CN

Static Load Rating

640000 lbf2840000 N2840.00 kN

Dynamic Load Rating

225000 lbf1000000 N1000.00 kN

Weight

98.106 lb44.500 kg

Operating Temperature Range

-40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


Machined-Ring Needle Roller Bearing w/ Inner Ring - NA48, NA49 Series - Dimensions

d

14.9606 in380.000 mm

D

18.8976 in480.000 mm

F

16.3386 in415.000 mm

B

3.9370 in100.000 mm

r

0.0827 in2.100 mm

s

0.0787 in2.000 mm

da min

15.3937 in391.000 mm

Da max

18.4646 in469.000 mm

ras max

0.0787 in2.000 mm