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B71901C-2RZ High Speed Angular Contact Bearings
Reference FOB Price:
US15 / Piece
Min. Order:
1 Piece
Stock:
20 Piece
Production Capacity:
200/month
Port:
Shanghai
Payment term:
T/T
Delivery time:
3-5days
Technical Parameters:
Product Designations:
B71901C-2RZ
Old Designations:
B71901C-2RZ
Inside Diameter:
12 mm
Outside Diameter:
24 mm
Thickness:
6 mm
Transport Package:
wooden case
Shipping Ways:
by sea or air or as your request
Country of Origin:
China
Ultra-High Speed Angular Contact Bearings With Sealing B719 Series
It is mainly used for high speed and high precision grinding for internal surface. In order to meet the requirement of electric spindle, the internal parameters of the bearing rings are optimized.
CHG provides B719 series bearing as follows:
1. Contact angle of 15°
2. Outer ring guide phenolic resin cage
3. Rolling element guide polyamide resin cage ( Tnl )
4. Steel ball or ceramic ball ( HQ1 )
5. Precision degree: P4, P2
6. Preload with fixed pressure
7. Contact sealing ( 2RZ ) at both end faces
8. Can use ceramic balls for higher speed and longer life
| 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 |
||
| B71900C-2RZ | 10 | 22 | 6 | 0.3 | 0.10 | 2.1 | 1.0 | 75000 | 137500 | 0.009 | 0.008 |
| B71901C-2RZ | 12 | 24 | 6 | 0.3 | 0.10 | 2.3 | 1.1 | 67000 | 120000 | 0.010 | 0.009 |
| B71902C-2RZ | 15 | 28 | 7 | 0.3 | 0.10 | 3.4 | 1.7 | 56000 | 100000 | 0.015 | 0.013 |
| B71903C-2RZ | 17 | 30 | 7 | 0.3 | 0.10 | 3.6 | 1.9 | 51000 | 93000 | 0.017 | 0.015 |
| B71904C-2RZ | 20 | 37 | 9 | 0.3 | 0.15 | 5.2 | 3.0 | 42000 | 77000 | 0.035 | 0.031 |
| B71905C-2RZ | 25 | 42 | 9 | 0.3 | 0.15 | 5.6 | 3.4 | 36000 | 66000 | 0.046 | 0.039 |
| B71906C-2RZ | 30 | 47 | 9 | 0.3 | 0.15 | 6.0 | 3.9 | 32000 | 57000 | 0.057 | 0.048 |
| B71907C-2RZ | 35 | 55 | 10 | 0.6 | 0.15 | 6.9 | 6.0 | 27000 | 48000 | 0.074 | 0.065 |
| B71908C-2RZ | 40 | 62 | 12 | 0.6 | 0.15 | 7.3 | 6.8 | 23000 | 43000 | 0.123 | 0.096 |
| B71909C-2RZ | 45 | 68 | 12 | 0.6 | 0.15 | 10.0 | 9.3 | 21000 | 39000 | 0.133 | 0.112 |
| B71910C-2RZ | 50 | 72 | 12 | 0.6 | 0.15 | 13.0 | 10.1 | 20000 | 36000 | 0.139 | 0.116 |
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