Spherical roller bearing, one-piece machined cage, groove and lubrication holes on outer ring, tapered bore 1:12
The spherical roller bearing withstands significant loads and misalignments. This type of roller bearing is well adapted to harsh operating conditions: impacts or vibrations (crushers, vibrating screens, heavy handling, etc.). With the ULTAGE design, NTN offers as standard, unsurpassed endurance and longevity.
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PRODUCT DEFINITION | |
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Brand | SNR |
d - Internal diameter | 170 mm |
D - External diameter | 310 mm |
B - Bearing/Inner ring width | 86 mm |
D1 - Inner diameter outer ring | 276,4 mm |
rs - Min fillet radius | 4 mm |
Number of lubrication holes | 3 ou 4 |
b - Groove width | 17,98 mm |
k - Hole diameter | 8 mm |
Associated sleeve reference | H3134 |
Radial clearance class | C3 |
Mass | 28 kg |
PRODUCT PERFORMANCE | |
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C - Dynamic load | 1400 kN |
C0 - Static load | 1610 kN |
Cu - Fatigue limit load | 150 kN |
e - Coefficient | 0.26 |
Y0 - Static axial load coefficient | 2.54 |
Y1 - Lower axial load coefficient | 2.6 |
Y2 - Upper axial load coefficient | 3.87 |
Nref - Reference thermal speed | 1900 tr/min |
Nlim - Mechanical Limit Speed | 2700 tr/min |
Tmin - Min operating temperature | -40 °C |
Tmax - Max operating temperature | 200 °C |
BEARING FREQUENCIES | |
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BPFO - Characteristic outer ring frequency (60 rpm) | 7,584 Hz |
BPFI - Characteristic inner ring frequency (60 rpm) | 10,416 Hz |
FTF - Characteristic cage frequency (60 rpm) | 0,421 Hz |
BSF - Characteristic rolling element frequency (60 rpm) | 6,106 Hz |
ABUTMENT | |
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da max - Max shoulder diameter IR | 0 mm |
da min - Min shoulder diameter IR | 187 mm |
db - Min diameter for Sleeve | 180 mm |
Ce - Min length fro Sleeve | 10 mm |
Da max - Max shoulder diameter OR | 293 mm |
ra max - Max shaft & housing fillet radius | 3 mm |