Add: NO.439 Dongchang
Road,
Ningbo, China
P.C.: 315021
General Manager:
Chen Zhongwei
http://www.zwbearing.com
Sales Manager: Lily/Johnson
Tel: 0086-13968302681
Fax: 0086-0574-87638005
E-Mail: lily1981@139.com |
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Material:
Miniature bearing ferrule and a steel ball by refining bearing
chromium steel GCr15 (AISI 52100) or 9Cr18 (AISI440) made
of stainless steel, the user can also use other materials
according to specified order.
Precision:
Precision miniature bearings are now divided into three levels:
the precision level P5, advanced P6 and common P0.
Internal ring accuracy:(1)
|
| d(mm)
|
△dmp |
Vdp |
Vdmp |
|
P0(ABEC-1) |
P6(ABEC-3) |
P5(ABEC-5) |
P0 |
P6 |
P5 |
P0 |
P6 |
P5 |
|
Diameter series
|
7.8.9 |
0 |
2.3 |
7.8.9 |
0 |
2.3 |
7.8.9 |
0.2.3 |
Over |
Incl |
Lower |
Lower |
Lower |
Max |
Max |
0.6 |
2.5 |
-8 |
-7 |
-5 |
10 |
8 |
6 |
9 |
7 |
5 |
5 |
4 |
6 |
5 |
3 |
2.5 |
10 |
-8 |
-7 |
-5 |
10 |
8 |
6 |
9 |
7 |
5 |
5 |
4 |
6 |
5 |
3 |
10 |
18 |
-8 |
-7 |
-5 |
10 |
8 |
6 |
9 |
7 |
5 |
5 |
4 |
6 |
5 |
3 |
External ring accuracy:(1)
|
| d(mm)
|
△dmp |
Vdp |
Vdmp |
|
P0(ABEC-1) |
P6(ABEC-3) |
P5(ABEC-5) |
P0 |
P6 |
P5 |
P0 |
P6 |
P5 |
|
Open
|
Zz |
Open |
Zz |
Open |
| Diameter Series |
7.8.9 |
0 |
2.3 |
2.3 |
7.8.9 |
0 |
2.3 |
0.2.3 |
7.8.9 |
0.2.3 |
Over |
Incl |
Lower |
Lower |
Lower |
Max |
Max |
2.5 |
6 |
-8 |
-7 |
-5 |
10 |
8 |
6 |
10 |
9 |
7 |
5 |
9 |
5 |
4 |
6 |
5 |
3 |
6 |
18 |
-8 |
-7 |
-5 |
10 |
8 |
6 |
10 |
9 |
7 |
5 |
9 |
5 |
4 |
6 |
5 |
3 |
18 |
30 |
-9 |
-8 |
-6 |
12 |
9 |
7 |
12 |
10 |
8 |
6 |
10 |
6 |
5 |
7 |
6 |
3 |
Clearance:
Miniature bearings are divided into five groups according
to ISO5753 standard provisions, General Factory made according
to provisions of the basic group, the user can according to
requirements specified tolerance group order.
CLEARANCE
|
| |
Clearance |
| C2
|
CN(co)
|
C3 |
C4 |
C5 |
Over |
Incl |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
2.5 |
10 |
0 |
7 |
2 |
13 |
8 |
23 |
14 |
29 |
20 |
37 |
10 |
18 |
0 |
9 |
3 |
18 |
11 |
25 |
18 |
33 |
25 |
45 |
18 |
24 |
0 |
10 |
5 |
20 |
13 |
28 |
20 |
36 |
28 |
48 |
Lubrication:
Miniature bearings factory filling instrument oil
or grease, the bearings are suitable for the work temperature
of -30 DEG -100 DEG in special working conditions, the user
can choose the lubricants or other lubricating mode, the user
can be specified in the contract.
Packaging:
Miniature bearings for plastic pipe or a plastic bag and then
in carton, other packaging can be according to the stipulations
of the contract.
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