Bearing Distributors, an Applied Company
Bearing Distributors, an Applied Company
930 South Stadium Road
Columbia, SC 29201
Phone: (800) 934-2834
Fax: (803) 256-3824
Email: sales@ibearing.com
Website: www.bearingdistributors.com
Print Back
    The rollers in the NN type bearing are guided by the ribs of the inner ring.
Unit of Measure

Technical Specifications

Type

 Cylindrical Roller Bearing

Bore Type

 Tapered

Material

 Hardened Alloy Steel

Cage Material

 High Strength, 2 piece, Machined Brass

Limiting Speed - Oil

 3900 rpm

Limiting Speed - Grease

 3300 rpm

Taper

 1:12

Precision

 ISO Class 5

Configuration

 Two

Oil Hole

 w/o Oil Hole

Radial Internal Clearance

 C1NA

Static Load Rating

 87500 lbf390000 N390.00 kN

Dynamic Load Rating

 52500 lbf233000 N233.00 kN

Enclosure

 Open

Weight

 8.461 lb3.838 kg

Operating Temperature Range

 -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


Double Row Cylindrical Roller Bearing w/ Tapered Bore - Type NN - Dimensions

d

 4.7244 in120 mm

D

 7.0866 in180 mm

B

 1.811 in46 mm

C

 1.811 in46 mm

Ew

 6.4961 in165.000 mm

r

 0.0787 in2.000 mm

da min

 5.0787 in129.000 mm

db min

 5.2362 in133.000 mm

Da max

 6.5748 in167.000 mm

Db min

 6.5748 in167.000 mm

Db max

 6.7323 in171.000 mm

ras max

 0.0787 in2 mm