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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

1100 RPM

Limiting Speed - Grease

750 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

435000 lbf1940000 N1940.00 kN

Dynamic Load Rating

147000 lbf655000 N655.00 kN

Weight

53.131 lb24.100 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

13.3858 in340.000 mm

D

16.5354 in420.000 mm

F

14.5669 in370.000 mm

B

3.1496 in80.000 mm

r

0.0827 in2.100 mm

s

0.0787 in2.000 mm

da min

13.8189 in351.000 mm

Da max

16.1024 in409.000 mm

ras max

0.0787 in2.000 mm