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21317VM - SNR

21317VM

Spherical roller bearing, one-piece machined cage

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-SNR offers as standard, unsurpassed endurance and longevity.

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Technical datasheet

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Specs

PRODUCT DIMENSIONS

Internal diameter d 85 mm
External diameter D 180 mm
Bearing/Inner ring width(B) 41 mm
Inner diameter outer ring D1 153,1 mm
Min fillet radius rs 3 mm
Number of lubrication holes 0
Groove width (b) 0 mm
Hole diameter (k) 0 mm
Coef e 0.23
Lower axial load coef (Y1) 2.99
Upper axial load coef (Y2) 4.46
Static axial load coef (Y0) 2.93
Radial clearance class CN
Mass 5,16 kg
Brand SNR
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PRODUCT PERFORMANCE

Dynamic load, C 341 kN
Static load, C0 344 kN
Fatigue limit load, Cu 38,4 kN
Reference thermal speed (Nref) 3600 tr/min
Mechanical Limit Speed Nlim 4600 tr/min
Min operating temperature, Tmin -40 °C
Max operating temperature, Tmax 200 °C
Characteristic cage frequency, FTF 0,419 Hz
Characteristic rolling element frequency, BSF 5,949 Hz
Characteristic outer ring frequency, BPF0 6,705 Hz
Characteristic inner ring frequency, BPFI 9,295 Hz

ABUTMENT

Max shoulder diameter IR da max 0 mm
Min shoulder diameter IR da min 99 mm
Max shoulder diameter OR Da max 166 mm
Max shaft & housing fillet radius ra max 2,5 mm
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