Products
You are here: Home Products
1. DYS bearing materials
Bearing parts |
Materials |
Iinside track, outer track |
Bearing steelGCr15(A1S152100)* stainless steelqCr18(A1S1440C) |
Rolling element |
Bearing steelGCr15(A1S152100)* stainless steelqCr18(A1S1440C) |
Holder |
Cold-rolled steel sheet10-GBT10* brass sheetH62、enhanced nylon holderPA66-GF25,stainless steelqCr18 |
Sealing element |
Seal ring: butyronitrile oilproof rubberN-11*,viton dust cover:cold-rolled steel sheet*10-GBT10、SPCC sheet steel |
* Is general material adopted.
2. Packaging
1. Standard packaging: 10 sets
bearing wrapped in a PVC plastic simple package, then put
in a export carton.
2. Single paper box packaging: Each bearing wrapped in a
PVC plastic bag, then put in DYS colour box, and then in
a export carton.
3. Tray: You can select wooden tray, iron tray or paper
tray. |
 |
3. Precision
The precision of bearing includes dimensional
precision and running accuracy. Dimensional precision is
the item required when install bearing on axes or bearing
box. It contains inside diameter, outside diameter, width,
difference of faceoff size or allowable value. Geometric
accuracy contains inside diameter deviation, average inside
difference, outside diameter deviation, average outside
difference, allowable value of parallel difference of ferrule
end face. Running accuracy is oscillated when it is stipulated
to running. It contains radial wobble and axial wobble of
inside track and outer track, sidesway of inside track and
tolerance range of outside diameter verticality.
Accuracy class of bearing is from general class(0) to
6, 5, 4 and 2 class, heighten orderly. Following table3
is the comparison during China GB307 stated accuracy class
and other standard.
|
Comparision list of part of China accuracy class of bearing
Country |
Standard code |
Accuracy class |
China |
GB307 |
0(G) |
6(E) |
5(D) |
4(C) |
2(B) |
ISO |
ISO492 |
0 |
6 |
5 |
4 |
2 |
Sweden |
Version 1985 |
0 |
P6 |
P5 |
P4 |
P2 |
West Germany |
DIN 620/2 |
Po |
P6 |
P5 |
P4 |
P2 |
America |
ANSI B3.14 |
ABEC 1 |
ABEC 3 |
ABEC 5 |
ABEC 7 |
ABEC 9 |
Japan |
JIS B1514 |
0 |
6 |
5 |
4 |
2 |
* Is general material adopted.