NTN BEARING CORPORATION OF AMERICA
NTN BEARING CORPORATION OF AMERICA
Head Office
1600 E. Bishop Court, P.O. Box 7604
Mount Prospect, IL 60056-7604, U.S.A.
Phone: 847-298-7500
Fax: 847-699-9744
Toll Free: 800-323-2358
Email: mkt@ntnamerica.com
Website: www.ntnamericas.com
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Unit of Measure

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Ordering Options

 N/A Order Online through NTN DOL Contact NTN Customer Relations Search for a Licensed Distributor

Technical Specifications

Type

 N/A Spherical Roller Bearing

Bore Type

 N/A Tapered

Material

 N/A Through Hardened Steel

Cage Type

 N/A Machined

Cage Material

 N/A Brass

Limiting Speed - Grease

 N/A 350 RPM

e

 N/A 0.31

Y1

 N/A 2.15

Y2

 N/A 3.21

Y0

 N/A 2.11

Series

 N/A 231

Radial Internal Clearance

 N/A CN

Radial Internal Clearance Specification

 N/A Normal

Ring Modification

 N/A Relube

Taper

 N/A 1:12

Enclosure

 N/A Open

Weight

 N/A 1051.604 lb477.000 kg

Operating Temperature Range

 N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


Spherical Roller Bearing w/ Tapered Bore & Oil Groove - Dimensions

d

 N/A 18.8976 in480.000 mm

D

 N/A 31.1024 in790.000 mm

B

 N/A 9.7638 in248.000 mm

r

 N/A 0.2953 in7.500 mm

da min

 N/A 20.3150 in516.000 mm

Da max

 N/A 29.6850 in754.000 mm

ras max

 N/A 0.2362 in6.000 mm