In the ball bearing and high precision bearing ranges, the high precision angular contact ball bearing solves the maximum reliability constraints with increased performance in terms of rigidity, speed, capacity and precision. This bearing is recommended for demanding applications in terms of precision such as machine tool spindles. NTN is getting sub-ranges dedicated to requirements of speed, sealing, specific greasing, etc.
Log in
To add this product to your basket
Documentation
Product information
PRODUCT DEFINITION
Brand
SNR
d - Internal diameter
200 mm
D - External diameter
280 mm
B - Bearing/Inner ring width
38 mm
d1 - External diameter inner ring
225,7 mm
D1 - Inner diameter outer ring
254,326 mm
D2 - Inner diameter outer ring
266,583 mm
a - Charge load application point
51 mm
α - Contact angle
15 °
rs - Min fillet radius
2,1 mm
r1s - Min fillet radius
1 mm
Precision class
P4
Mass
6,16 kg
PRODUCT PERFORMANCE
C - Dynamic load
189 kN
C0 - Static load
244 kN
Cu - Fatigue limit load
8,3 kN
f0 - Coefficient
16.498
Axial displacement K Factor
0.69
Preload level
7
Preload value
1,65 kN
Axial rigidity
262 N/µm
Radial rigidity
1460 N/µm
Tmin - Min operating temperature
-30 °C
Tmax - Max operating temperature
120 °C
N lim - Oil lubrication limit speed
7300 tr/min
N lim - Grease lubrication limit speed
4800 tr/min
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)
12,206 Hz
BPFI - Over rolling frequency on inner (60 rpm)
14,794 Hz
BSF - Over rolling frequency on rolling element (60 rpm)
9,986 Hz
BRF - Rotational frequency – rolling element (60 rpm)
