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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

2000 RPM

Limiting Speed - Grease

1300 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

200000 lbf890000 N890.00 kN

Dynamic Load Rating

84500 lbf375000 N375.00 kN

Weight

18.916 lb8.580 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

7.0866 in180.000 mm

D

9.8425 in250.000 mm

F

8.0709 in205.000 mm

B

2.7165 in69.000 mm

r

0.0787 in2.000 mm

s

0.0591 in1.500 mm

da min

7.4409 in189.000 mm

Da max

9.4882 in241.000 mm

ras max

0.0787 in2.000 mm