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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

1000 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

720000 lbf3200000 N3200 kN

Dynamic Load Rating

270000 lbf1200000 N1200.00 kN

Weight

108.026 lb49.000 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

14.1732 in360.000 mm

D

18.8976 in480.000 mm

F

15.7480 in400.000 mm

B

4.6457 in118.000 mm

r

0.11810 in3.000 mm

s

0.0787 in2.000 mm

da min

14.6850 in373.000 mm

Da max

18.3858 in467.000 mm

ras max

0.0984 in2.5 mm