
Main Dimensions & Performance Data
| d |
25 mm
|
Bore diameter |
|
0 mm
|
Bore diameter upper tolerance | |
|
-0.005 mm
|
Bore diameter lower tolerance | |
| D |
62 mm
|
Outside diameter |
|
0 mm
|
Outside diameter upper tolerance | |
|
-0.007 mm
|
Outside diameter lower tolerance | |
| B |
15 mm
|
Width |
|
0 mm
|
Width upper tolerance | |
|
-0.12 mm
|
Width lower tolerance | |
| Ca |
32,000 N
|
Basic dynamic load rating, axial |
| C0a |
64,000 N
|
Basic static load rating, axial |
| Cua |
3,850 N
|
Fatigue load limit, axial |
| nG Grease |
6,700 1/min
|
Limiting speed for grease lubrication |
| nϑ |
5,400 1/min
|
Thermally safe operating speed |
| ≈m |
0.24 kg
|
Weight |
| Da |
54 mm
|
Diameter of housing |
| Da |
H12
|
Diameter of housing clearance |
| da |
38 mm
|
Diameter shaft |
| da |
h12
|
Diameter shaft clearance |
| rmin |
1 mm
|
Minimum chamfer dimension |
| r1 min |
0.6 mm
|
Minimum chamfer dimension |
| a |
39.4 mm
|
Distance between the apexes of the pressure cones |
| α |
60 °
|
Contact angle |
| Tmin |
-30 °C
|
Operating temperature min. |
| Tmax |
120 °C
|
Operating temperature max. |
| MR |
0.13 Nm
|
Bearing frictional torque |
| caL |
1,001 N/µm
|
Rigidity axial |
|
2 µm
|
Axial runout | |
|
ZMA25/45
|
Recommended precision locknut for radial locking | |
|
AM25
|
Recommended precision locknut for axial locking | |
| MA |
30 Nm
|
Tightening torque for the recommended precision locknut |
|
11,810 N
|
Required locknut force axial |

Certificate


FAQ
Q:Why choose us?
A:1. We are professional,have factory in shandong for many years.
2. We are experienced for 10 years.
3. We can offer a various kind of bearing with high quality:Z1V1,Z2V2,Z3V3 and best price
Q:How is the quality of your products?
A:The same quality, we have lower price.The same price,we have better quality.
Q:Except Angular contact ball bearing ,what other main bearing do you have?
A:Cylindrical roller bearing,Taper Roller Bearing,Thrust roller bearing,Deep groove ball bearing,Spherical roller bearing etc.
Q:May I get 7830 Angular contact ball bearing free samples?
A:We will charge a little sample fee for our regular designs or customized ones, These charges will be refunded to you when your mass production order is confirmed.
Q:Can you make the products as our requirement?
A:We have more than 10years' OEM experience. We supply products fo more than 300 automobile parts factories.