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MATERIAL & ACCURACY

KDYD Bearing ring and steel ball are adopted with GCr 15 to be made.
The Chemical Composition See Table 1
The contrast of Bearing Steel No.of each country See Table 2
The preserving shelf generally adopting 0.8F cold rolling steel strap, punching to be made, also having plasties, phenol Aldehyde and preserving shelf.

Table 1
Chemical Composition(%)
No.
C
Mn
Si
Cr
S
P
Ni
Cu
HB
<
Gcr15
0.95~1.05
0.20~0.4
0.15~0.35
1.30~1.65
0.02
0.027
0.3
0.25
170-207

Table 2
Country
China
International Standard Organization
U.S.A
Germany
Japan
Sweden
Bearing
GCR15
683/XVIII
(AISI)52100
(Din)100Cr6
(Jis)SUJ2
SKF3
Steel number

According to the international standard, the Accuracy of KDYD Bearing can be divided into five grades: normal Grade 0.High Grade 6. Accurate grade 5. Over. Accuracy Grade 4. and over the 4 thgrade 2.
The grade of tolerance is in accordance with the standard of GB/T307.1-94
The Contrast of Bearing Accuracy See Table 3

Table 3
Country
Standard
Accuracy Grade
China
GB307.1
0
6
5
4
2
International Standard Organization
ISO
0
6
5
4
2
Sweden
SKF
P0
P6
P5
P4
P2
Germany
DIN
P0
P6
P5
P4
P2
Japan
JIS
P0
P6
P5
P4
P2
U.S.A
ANSI
ABEC1
ABEC3
ABEC5
ABEC7
ABEC9

LUBRICATE

General purpose grease No. and function
Company Brand
Designation No.
Dropping Tem °C
Penetrational 25 °C
Working tem °C
Shell
Alvania RL2
185
265~295
-35~120
Alvania RLQ2
195
265~295
-25~120
Alvania R3
185
220~250
-35~135
Alvania EP2
185
265~295
-25~110
Chevron
SR1-2
240
255~280
-30~175
OEM
243
270
-30~170
Jin Zhi
HAS
206
280
-40~130
HTHS
300
280
-40~200
TSA
192
280
-50~150
Low noise
198
280
-20~120
Mobil
Mobil EP2
180
305~350
-10~120
Mobil XHP222
280
281
-29~177
Mobil 28
260
265~295
-55~175
Mobil 44
260
240~270
-60~170
Kyodo Yushi
Raremax Super
190
260
-40~170
SRL
185
225~245
-40~145
PS2
190
250~275
-50~150
ET150
260
255~280
-10~160
Eseeo
Andok C
260
190~210
-30~140
Beacon 325
190
255~280
-54~120
Polyrex EM
288
305~340
-30~180
Polyrex EP2
280
280~310
-40~180
Kluber
Lsoflex LD518
190
255~280
-50~110
Lsoflex NBU15
250
255~280
-30~120

TOLERANCE

Appendix 1
Table 1 Inner Ring of 0 Grade Tolerance
d(mm)
dmp
Vdp2)
Vdmp
Kia
Bs
VBs
Diameter Series
9
0,1
2,3,4
All
Normal
Amended3)
over
incl.
high
low
max.
max.
max.
high
low
max.
0.61)
2.5
0
-8
10
8
6
6
10
0
-40
-
12
2.5
10
0
-8
10
8
6
6
10
0
-120
-250
15
10
18
0
-8
10
8
6
6
10
0
-120
-250
20
18
30
0
-10
13
10
8
8
13
0
-120
-250
20
30
50
0
-12
15
12
9
9
15
0
-120
-250
20
50
80
0
-15
19
19
11
11
20
0
-150
-380
25
80
120
0
-20
25
25
15
15
25
0
-200
-380
25

Note:
1)Including 0.6
2)Diameter series 7 and ,no regular cost
3)Indicating the single internal ring of the earing to be used in pari of group during installation

Table 2 Out Ring of 0 Grade Tolerance
D(mm)
dmp
Vdp2)4)
Vdmp4)
Kea
Cs
Cis5)
Vcs
Vcis5)
Open Bearing
Capped
Bearings3)

Diameter Series
9
0,1
2,3,4
2,3,4
over
incl.
high
low
max.
max.
max.
high
low
max.
2.51)
6
0
-8
10
8
6
10
6
15

Identical to ¡÷Bs and VBs of inner ring of same bearing
6
18
0
-8
10
8
6
10
6
15
18
30
0
-9
12
9
7
12
7
15
30
50
0
-11
14
11
8
16
8
20
50
80
0
-13
16
13
10
20
10
25
80
120
0
-15
19
19
11
26
11
35
120
150
0
-18
23
23
14
30
14
40
150
180
0
-25
31
31
19
38
19
45
180
250
0
-30
38
38
23
-
23
50

Note:
1)Including 2.5
2)Diameter series 7 and 8,no regular cost
3)Diameter series 9.0 and 1,no regular cost
4)Suitable for inside and outside brake ring before installation or after discharge.
5)Only suitable for groove type ball bearing.

Appendix 2
Table 3 Inner Ring of 6Grade Tolerance
d(mm)
dmp
Vdp2)
Vdmp
Kia
Bs
VBs
Diameter Series
9
0,1
2,3,4
All
Nornal
Amended3
over
incl.
high
low
max.
max.
max.
high
low
max.
0.61)
2.5
0
-7
9
7
5
5
5
0
-40
-
12
2.5
10
0
-7
9
7
5
5
6
0
-120
-250
15
10
18
0
-7
9
7
5
5
7
0
-120
-250
20
18
30
0
-8
10
8
6
6
8
0
-120
-250
20
30
50
0
-10
13
10
8
8
10
0
-120
-250
20
50
80
0
-12
15
15
9
9
10
0
-150
-380
25
80
120
0
-15
19
19
11
11
13
0
-200
-380
25

Note:
1)Including 0.6
2)Diameter series 7 and ,no regular cost
3)Indicating the single internal ring of the earing to be used in pari of group during installation

Table 4 Our Ring of 6Grade Tolerance
D(mm)
dmp
Vdp2)4)
Vdmp4)
Kea
Cs
Cis5)
Vcs
Vcis5)
Open Bearing
Capped
Bearings3)
Diameter Series
9
0,1
2,3,4
0,1,2,3,4
over
incl.
high
low
max.
max.
max.
high
low
max.
2.51)
6
0
-7
9
7
5
9
5
8

Identical to ¡÷Bs and VBs of inner ring of same bearing
6
18
0
-7
9
7
5
9
5
8
18
30
0
-8
10
8
6
10
6
9
30
50
0
-9
11
9
7
13
7
10
50
80
0
-11
14
11
8
16
8
13
80
120
0
-13
16
16
10
20
10
18
120
150
0
-15
19
19
11
25
11
20
150
180
0
-18
23
23
14
30
14
23
180
250
0
-20
25
25
15
-
15
25

Note:
1)Including 2.5
2)Diameter series 7 and 8,no regular cost
3)Diameter series 9.0 and 1,no regular cost
4)Suitable for inside and outside brake ring before installation or after discharge.
5)Only suitable for groove type ball bearing.

CLEARANCE

In accoedance with the standard of ISO05753,The radial Clearance can be divided into five groups.
Radial Clearance Value without load See Table 6

Table 5     Radial play of Deep-groove Ball Bearing
Bore diameterd(mm)
Group2
Sramdard group
Group3
Group4
Group5
Over
TO
Min.
Max..
Min.
Max..
Min.
Max..
Min.
Max.
Min.
Max..
2.5
6
0
7
2
13
8
23
-
-
-
-
6
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
24
30
1
11
5
20
13
28
23
41
30
53
30
40
1
11
6
20
15
33
28
46
40
64
40
50
1
11
6
23
18
36
30
51
45
73
50
65
1
15
8
28
23
43
38
61
55
90
65
80
1
15
10
30
25
51
46
71
65
105
80
100
1
18
12
36
30
58
53
84
75
120

Note:C2 Group Clearance only for Boaring over 6 Grade Accurancy

RUSTRESISTING
Bearing should normally be put under the protecied condition then it is to be stored and preserved. The rustresisting period is half a year. If there is half a year over the preservation period. at be time before the expiring date of rustresisting you have to check it over then according to the stipuation to be rustresisted again so as to keep the bearing not rusty.

PACKING

Generally KDYD Bearing is to be packed in the plastic pipesor in the thin membrane bags(10 sets). Then to be packed into the medium size Paper Box(50 sets or 100 sets). Then all to be packed in to the carton as the external packing small.
The users who have any requirements in packing may write then down in the contract.

VIBRATION & NOISE

Deep Groove Ball Bearing Accelerating Vibration Balue(dB). See Table 6.7
Table 6 JB/T10187-2000 Single Bearing Vibration speed Grade can not be over the following Values
Bore
diameter
d/mm
V1)
V1
V2
V3V
V4
LOW
Frequ
- ency
Medium
Frequ
- ency
High
Frequ
- ency
LOW
Frequ
- ency
Medium
Frequ
- ency
High
Frequ
- ency
LOW
Frequ
- ency
Medium
Frequ
- ency
High
Frequ
- ency
LOW
Frequ
- ency
Medium
Frequ
- ency
High
Frequ
- ency
LOW
Frequ
- ency
Medium
Frequ
- ency
High
Frequ
- ency
3
80
44
44
60
35
32
48
26
22
31
16
15
28
10
10
4
80
44
44
60
35
32
48
26
22
31
16
15
28
10
10
5
110
72
60
74
48
40
58
36
30
35
21
18
32
11
11
6
110
72
60
74
48
40
58
36
30
35
21
18
32
11
11
7
130
96
80
92
66
54
72
48
40
44
28
24
38
12
12
8
130
96
80
92
66
54
72
48
40
44
28
24
38
12
12
9
130
96
80
92
66
54
72
48
40
44
28
24
38
12
12
10
160
120
100
120
80
70
90
60
50
55
35
30
45
14
15
12
160
120
100
120
80
70
90
60
50
55
35
30
45
14
15
15
210
150
120
150
100
85
110
78
60
65
46
35
52
18
18
17
210
150
120
150
100
85
110
78
60
65
46
35
52
18
18
20
260
190
150
180
125
100
130
100
75
80
60
45
60
25
25
22
260
190
150
180
125
100
130
100
75
80
60
45
60
30
32
25
260
190
150
180
125
100
130
100
75
80
60
45
60
30
32
28
260
190
150
180
125
100
130
100
75
80
60
45
60
35
40
30
300
240
190
200
150
130
150
120
100
90
75
60
70
35
40
32
300
240
190
200
150
130
150
120
100
90
75
60
70
35
40
35
300
240
190
200
150
130
150
120
100
90
75
60
70
42
45
40
360
300
260
240
180
160
180
150
130
110
90
80
82
50
50
45
360
300
260
240
180
160
180
150
130
110
90
80
82
60
60
50
420
320
320
280
200
200
210
160
160
125
100
100
95
70
70
55
420
360
360
280
220
200
210
180
180
125
110
110
95
70
70
60
480
360
440
320
220
240
240
180
200
145
110
130
100
80
80
   1) In bearings code does not mean that.

Table 7      Single BEaring Vibration speen Grade can not be over the following Values
Bore
diameter
d/mm
V1)
V1
V2
V3V
V4
LOW
Frequ
- ency
Medium
Frequ
- ency
High
Frequ
- ency
LOW
Frequ
- ency
Medium
Frequ
- ency
High
Frequ
- ency
LOW
Frequ
- ency
Medium
Frequ
- ency
High
Frequ
- ency
LOW
Frequ
- ency
Medium
Frequ
- ency
High
Frequ
- ency
LOW
Frequ
- ency
Medium
Frequ
- ency
High
Frequ
- ency
65
300
260
420
180
160
240
130
100
150
105
80
105
50
50
75
70
360
310
460
200
180
280
150
120
200
110
90
135
58
58
88
70
360
310
460
200
180
280
150
120
200
110
90
135
58
58
88
80
420
360
540
240
210
320
180
120
240
130
110
160
65
65
100
85
420
360
540