• English
  • Français
  • Deutsch
  • Italiano
  • Español
  • Português do Brasil
  • Polski
  • Русский
  • Türkçe

Single row tapered roller bearings

30211A - SNR

30211A

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.

Documentation

Product information

PRODUCT DEFINITION
BrandSNR
d - Internal diameter55 mm
D - External diameter100 mm
B - Bearing/Inner ring width21 mm
C - Outer ring width18 mm
T - Total width22,75 mm
d1 - External diameter inner ring75,2 mm
a - Charge load application point21,1 mm
rs - Min fillet radius2 mm
r1s - Min fillet radius1,5 mm
Mass0,712 kg
ISO 355 referenceT3DB055
undefined
PRODUCT PERFORMANCE
C - Dynamic load99,4 kN
A2 - Rating life coefficient1
C0 - Static load114 kN
Cu - Fatigue limit load13,9 kN
e - Coefficient0.4
Y0 - Static axial load coefficient0.81
Y2 - Upper axial load coefficient1.48
N ref - Reference thermal speed4500 tr/min
N lim - Mechanical Limit Speed7300 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)8,09 Hz
BPFI - Over rolling frequency on inner (60 rpm)10,91 Hz
BSF - Over rolling frequency on rolling element (60 rpm)6,361 Hz
BRF - Rotational frequency – rolling element (60 rpm)3,181 Hz
FTF - Rotational frequency - cage (60 rpm)0,426 Hz
ABUTMENT
da max - Max shoulder diameter IR64 mm
db min - Min IR shoulder diameter65 mm
Da min - Min shoulder diameter OR88 mm
Da max - Max shoulder diameter OR91,5 mm
Db min - Min OR shoulder diameter94 mm
Ca - Min clearance4 mm
Cb - Min clearance4,5 mm
ra max - Max fillet radius2 mm
r1a - Max fillet radius1,5 mm
undefined

OE Equivalents

ManufacturerReferenceIveco038540711Mercedes720030211

Industry Calcul Factors

Calcul factors image