About NTN
Careers
Media & Resources
Contact Us
English/Inglés
Spanish/Español
Your Industry
Wind Energy
Construction
Agriculture
Automotive
Heavy Duty Truck
Aerospace
Mining & Aggregate
Metal Manufacturing
Machine Tool
Rail & Transit
Food Processing
Infrastructure
Products
Ball Bearings
Tapered Roller Bearings
Cylindrical Roller Bearings
Spherical Roller Bearings
Needle Roller Bearings
Mounted Units & Pillow Blocks
Installation & Removal Tools
Constant Velocity Joints
Wheel Hubs
Differential Kits
Bearing Search
Part Interchange Search
Distributor Search
Distributors: Mexico
Distributors: Sudamerica
Distributor Search Results
International Distributors
Product Support & Training
Part Interchange Search
Shaft & Housing Fits
Tolerance Tables
Product Analysis & Testing
Training Programs
Frequently Asked Questions
Access CAD Files (WEB2CAD)
Brochures & Literature
Brochures
Spec Sheets
Catalogs
Tech Sheets & Supplements
REVOLUTION
IN MOTION™
Search Catalog
By Keyword
By Competitor Part Number
By Item #
All Categories
Double Row Cylindrical Roller Bearings
All Categories
>
Cylindrical Roller Bearings
>
Double Row Cylindrical Roller Bearings
>
Item # NN3040K
Download PDF
Download PDF
Printable Page
Email This Page
Save To Favorites
Please wait…
Item # NN3040K, Double Row Cylindrical Roller Bearing w/ Tapered Bore - Type NN
The rollers in the NN type bearing are guided by the ribs of the inner ring.
larger image
larger image
Unit of Measure:
Imperial
Metric
Both
Order Now
·
Technical Specifications
·
Dimensional Specifications
Order Now
Ordering Options
Contact NTN Customer Relations
Technical Specifications
Type
Cylindrical Roller Bearing
Bore Type
Tapered
Material
Hardened Alloy Steel
Cage Material
High Strength, 2 piece, Machined Brass
Limiting Speed - Oil
2300
RPM
Limiting Speed - Grease
1900
RPM
Taper
1:12
Precision
ISO Class 0
Configuration
Two
Oil Hole
w/o Oil Hole
Radial Internal Clearance
CN
Static Load Rating
263000
lbf
1170000
N
1170.00
kN
Dynamic Load Rating
147000
lbf
655000
N
655.00
kN
Enclosure
Open
Operating Temperature Range
-40 to 250
ºF
-40 to 120
ºC
Dimensional Specifications
Double Row Cylindrical Roller Bearing w/ Tapered Bore - Type NN - Dimensions
larger image
d
7.8740
in
200.000
mm
D
12.2047
in
310.000
mm
B
3.2283
in
82.000
mm
C
3.2283
in
82.000
mm
Ew
11.1024
in
282.000
mm
r
0.0827
in
2.100
mm
da min
8.3071
in
211.000
mm
db min
8.5827
in
218.000
mm
Da max
11.2205
in
285.000
mm
Db min
11.2205
in
285.000
mm
Db max
11.7717
in
299.000
mm
ras max
0.0787
in
2.000
mm
VIEW CAD DRAWING
·
3D
·
2D Sectional View
·
2D Sales Drawing