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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

1800.0 RPM

Limiting Speed - Grease

1200 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

265000 lbf1180000.0 N1180.00 kN

Dynamic Load Rating

114000 lbf505000 N505.00 kN

Weight

26.896 lb12.200 kg

Operating Temperature Range

-40 to 250 ºF-40 to 120 ºC

Dimensional Specifications

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

d

7.8740 in200.000 mm

D

11.0236 in280.000 mm

F

8.8583 in225.000 mm

B

3.1496 in80.000 mm

r

0.0827 in2.100 mm

s

0.0591 in1.500 mm

da min

8.3071 in211.000 mm

Da max

10.5906 in269.000 mm

ras max

0.0787 in2.000 mm