Back

4T-HM212049/HM212011 - NTN

4T-HM212049/HM212011

Tapered roller bearing, pressed steel cage

The single row tapered roller bearing is available in metric dimensions (ISO 355 and JIS B 1512 standards) and in inches (ABMA standard, metric series including J). The single row in tapered roller bearing range, is the most widely used and is generally mounted in opposition.

Downloads

3D file

Technical datasheet

KitThis kit contains the following reference(s) - 4T-HM212011 - 4T-HM212049
PLEASE LOGIN to add products to your basket
Contact us
Specs

PRODUCT DEFINITION

d - Internal diameter 66,675 mm
D - External diameter 122,238 mm
B - Bearing/Inner ring width 38,354 mm
C - Outer ring width 29,718 mm
T - Total width 38,1 mm
d1 - External diameter inner ring 91,5 mm
a - Charge load application point 27 mm
Mass 1,85 kg
Brand NTN
Product classification image

PRODUCT PERFORMANCE

C - Dynamic load 187 kN
C0 - Static load 244 kN
Cu - Fatigue limit load 29,8 kN
A2 - Rating life coefficient 1
e - Coefficient 0.34
Y0 - Static axial load coefficient 0.98
Y2 - Upper axial load coefficient 1.78
Nlim - Oil lubrication limit speed 4100 tr/min
Nlim - Grease lubrication limit speed 3100 tr/min
Tmin - Min operating temperature -40 °C
Tmax - Max operating temperature 120 °C
FTF - Characteristic cage frequency 0,422 Hz
BSF - Characteristic rolling element frequency 6,061 Hz
BPFO - Characteristic outer ring frequency 7,166 Hz
BPFI - Characteristic inner ring frequency 9,834 Hz

ABUTMENT

da max - Max shoulder diameter IR 75 mm
db min - Min IR shoulder diameter 82 mm
Da max - Max shoulder diameter OR 108 mm
Db min - Min OR shoulder diameter 116 mm
ra max - Max fillet radius 3,5 mm
r1a - Max fillet radius 3,3 mm
Product classification image

 

Manufacturer
Reference

 

Brand
Model
Generation
Date
Position
Location
Calcul factors image