Super High Speed Angular Contact Bearing Features:
It is mainly used for high speed and high-precision bearings for internal grinding of electric spindle, and the internal parameters of the bearing are specially optimized to meet the requirements of electric spindle.
CHG can provide B70 series as follow:
1. Contact angle 15°
2. Cage: outer ring Guide phenolic resin cage (unmarked)
3. Spherical material: steel ball (no mark), Ceramic ball (HQ1)
4. High-precision series only supply P4 level, P2 class
5. High-speed, ultra-high speed, suitable for constant pressure preload, oil mist or oil and gas lubrication.
6. Can optional Ceramic Ball
Bearing Type |
Size (mm) |
Basic Load Rating (kN) |
Steel Balls Limit Speed (r/min) |
Ceramic Balls Limit Speed (r/min) |
Weight (kg) |
||||||
d | D | B |
r (min) |
r1 (min) |
Ca | Coa | Grease Lubrication | Steel Balls | Ceramic Balls | ||
B7000C | 10 | 26 | 8 | 0.3 | 0.15 | 2.4 | 1.0 | 84000 | 130000 | 0.018 | 0.016 |
B7001C | 12 | 28 | 8 | 0.3 | 0.15 | 2.7 | 1.2 | 75000 | 120000 | 0.019 | 0.017 |
B7002C | 15 | 32 | 9 | 0.3 | 0.15 | 3.0 | 1.5 | 64000 | 100000 | 0.032 | 0.029 |
B7003C | 17 | 35 | 10 | 0.3 | 0.15 | 3.2 | 1.6 | 58000 | 92000 | 0.041 | 0.036 |
B7004C | 20 | 42 | 12 | 0.6 | 0.15 | 4.8 | 2.7 | 48000 | 77000 | 0.083 | 0.075 |
B7005C | 25 | 47 | 12 | 0.6 | 0.15 | 6.7 | 4.0 | 42000 | 66500 | 0.094 | 0.085 |
B7006C | 30 | 55 | 13 | 1.0 | 0.30 | 7.5 | 4.6 | 36000 | 56500 | 0.133 | 0.122 |
B7007C | 35 | 62 | 14 | 1.0 | 0.30 | 10.0 | 7.0 | 31000 | 49500 | 0.182 | 0.171 |
B7008C | 40 | 68 | 15 | 1.0 | 0.30 | 10.4 | 7.8 | 28000 | 44500 | 0.222 | 0.209 |
B7009C | 45 | 75 | 16 | 1.0 | 0.30 | 11.6 | 8.9 | 25000 | 40000 | 0.285 | 0.271 |
B7010C | 50 | 80 | 16 | 1.0 | 0.30 | 15.4 | 12.0 | 23000 | 37000 | 0.300 | 0.280 |
B7011C | 55 | 90 | 18 | 1.0 | 0.30 | 17.0 | 14.5 | 21000 | 33000 | 0.440 | 0.410 |
B7012C | 60 | 95 | 18 | 1.1 | 0.60 | 17.6 | 15.3 | 19000 | 31000 | 0.470 | 0.430 |
B7013C | 65 | 100 | 18 | 1.1 | 0.60 | 20.2 | 18.6 | 18000 | 29000 | 0.500 | 0.460 |
B7014C | 70 | 110 | 20 | 1.1 | 0.60 | 24.1 | 21.4 | 17000 | 27000 | 0.690 | 0.640 |
B7015C | 75 | 115 | 20 | 1.1 | 0.60 | 26.2 | 25.5 | 16000 | 25000 | 0.730 | 0.670 |
B7016C | 80 | 125 | 22 | 1.1 | 0.60 | 34.2 | 32.7 | 15000 | 23400 | 0.990 | 0.920 |
B7017C | 85 | 130 | 22 | 1.1 | 0.60 | 35.0 | 35.2 | 14000 | 22300 | 1.030 | 0.950 |
B7018C | 90 | 140 | 24 | 1.5 | 0.60 | 36.4 | 38.1 | 13000 | 21000 | 1.350 | 1.250 |
B7019C | 95 | 145 | 24 | 1.5 | 0.60 | 44.4 | 45.2 | 12500 | 12000 | 1.400 | 1.280 |
B7020C | 100 | 150 | 24 | 1.5 | 1.00 | 45.4 | 48.1 | 12000 | 19200 | 1.460 | 1.310 |