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Home >  Products > Precision Angular Contact Ball Bearing > Super High Speed Angular Contact Bearing B70 Series
Super High Speed Angular Contact Bearing B70 Series
Precision Angular Contact Ball Bearing
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.
Details Specifications Comments

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


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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