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Unit of Measure

Technical Specifications

Type

Cylindrical Roller Bearing

Bore Type

Round

Material

Hardened Alloy Steel

Cage Material

High Strength Machined Brass Rivetless w/ square holes

Limiting Speed - Oil

3500 rpm

Limiting Speed - Grease

3000 rpm

Configuration

One

Tolerance

ISO Class 0 (RBEC 1)

Oil Hole

w/o Oil Hole

Radial Internal Clearance

C3

Static Load Rating

71000 lbf315000 N315.00 kN

Dynamic Load Rating

67000 lbf299000 N299.00 kN

Enclosure

Open

Operating Temperature Range

-40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


Cylindrical Roller Bearing - Separable Inner Ring w/ One Rib, Outer Ring w/ Two Ribs - NJ Type - Dimensions

d

3.1496 in80 mm

D

7.874 in200.000 mm

B

1.8898 in48 mm

Fw

4.3307 in110.000 mm

J

4.8031 in122.000 mm

r

0.1181 in3.000 mm

da min

3.6614 in93.000 mm

db min

3.6614 in93.000 mm

Da max

7.3622 in187.000 mm

Db max

7.3622 in187.000 mm

Db min

6.7717 in172.000 mm

r1as max

0.0984 in2.500 mm