Auto bearings
Industrial bearings
New Products
Technique Information
Materials
Bearing ring and Steel Ball are adopted with GCr15 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 H62 Brass Sheet or 0.8F cold rolling steel strap.punching to be made.also having plastics.phenol Aldehyde.and preserving shelf.
Steel No.
Chemical Composition(%)
C
Si
Mn
P
S
Cr
GCr15
0.95-0.15
0.15-0.35
0.25-0.45
<=0.025
<=0.025
1.40-1.65

Country
China
ISO
U.S.A
Germany
Japan
Sweden
Bearing Steel No.
GCr15
683/XVII1
(AISI)52100
(Din)100Cr6
(Jis)SVJ2
SKF3
Accuracy
According to the International Standard.the Accuracy of SL Bearing can be divided into five grades normal Grade 0,High Grade 6,Accurate grade 5,Over Accuracy Grade 4,and over the 4th grade2.
The grade of tolerance is in accordance with the standard of GB/T307.
The Contrast of Bearing Accuracy See Table
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
American
ANSI
ABEC1
ABEC3
ABEC5
ABEC7
ABEC9
Vibration and Noise
According to its accuracy Grade of the vibration value of the Noise of SL Bearing(Vibration)it is to be divided in Z1,Z2,Z3three groups.It can also be in accordance with Speed Grade of Vibration Value (µm/s) V1¡¢V2¡¢V3 Groups to measure its vibration.

If users have no requirement for vibration.The Normal Grade Bearing usually to be leaving out of the factory is in Vibration Value of Z1 Group.For exporting it is in Z2 Group.
Bearing Vibration speed Grade can not be over the following Values£¨dB£©
Bore Diameter (mm)
Diameter Series
Diameter Series
Diameter Series
Z1
Z2
Z1
Z2
Z3
Z1
Z2
Z3
4
34
32
35
32
30
36
33
31
5
36
34
37
34
32
37
35
33
6
36
34
37
34
32
37
35
33
7
38
35
38
36
34
--
--
--
8
38
35
38
36
34
--
--
--
9
40
36
40
37
35
--
--
--
10
42
38
42
39
35
44
40
37
12
43
39
43
39
35
45
40
37
15
44
40
44
41
36
46
42
38
17
44
40
45
41
36
47
42
38
20
45
41
46
42
38
48
43
39
Single Bearing Vibration Speed Grade Allowed The Limit Value(µm/s)
Bore Diameter
d
mm
V1
V2
V3
Low Frequency
Medium Frequency
High Frequency
Low Frequency
Medium Frequency
High Frequency
Low Frequency
Medium Frequency
High Frequency
5
90
60
50
58
36
30
35
21
18
6
90
60
50
58
36
30
35
21
18
7
110
80
65
72
48
40
44
28
24
8
110
80
65
72
48
40
44
28
24
9
110
80
65
72
48
40
44
28
24
10
140
100
85
90
60
50
55
35
30
12
140
100
85
90
60
50
55
35
30
15
180
130
100
110
78
60
65
46
35
17
180
130
100
110
78
60
65
46
35
20
220
160
125
130
100
75
80
60
45
22
220
160
125
130
100
75
80
60
45
25
220
160
125
130
100
75
80
60
45
 
Clearance
In accordance with standard of ISO 5753.The radial Clearance of SL Bear can be divided into five groups.
Radial Clearance Value without load See Table 6.
Generally it is according to the manufacturing and installation of the basic group of Clearance.The users who need the Radial Clearance except the basic group should put down their requirements in the contract.
Table 6 the Radial Clearance of the Deep Groove Ball Rearing
Note:C2 Group Clearance only for Bearings over 6 Grade Accurancy.
Bore diameter
d(mm)
group 2
Standard group
group 3
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
 
The Grease No and Function
Manufacturer
Brand
Viscosity
Base oil
Drop point ¡æ
Consistency
Operating Temperature range ¡æ
Selection Criteria
NMB
Code
Exxon
 Beacon 325 (Lithium) (Diester)
193
 290 -60¡«+120
low-temperature grease
LG20
AC205 (Nathium) (Mineral)     -25¡«+120
normal temperature grease
  
Polyrex EM (Diurea) (Mineral)
260
 288 -40¡«+180
high temperature low noise
  
Andok B (Nathium) (Mineral)
260
 280 -40¡«+120
normal temperature grease
LG38
Andok 260 (Nathium) (Mineral)
200
 250 -30¡«+150
normal temperature grease
LG71
Arapen RB300 (Lithium) (Mineral)
200
 250 -30¡«+100
normal temperature grease
  
UNIREX N2 (Lithium comples) (Mineral)
250
 280 -40¡«+180
high temperature low noise
  
Polyrex EP2 (Urea) (Mineral)
280
 280 -40¡«+180
high temperature low noise
  
UNIREX N3 (Lithium comples) (Mineral)
250
 235 -40¡«+180
high temperature low noise
  
Kyodo Yushi
 Multemp PS2 (Lithium) (Diester)
189
 280 -50¡«+110 low-temperature grease
LY72
Multemp SRL (Lithium) (Ester)
191
 245 -40¡«+150 low noise grease
LY121
Multemp SC-A (Urea)  
¡Ý260
 280 0¡«+160
normal temperature grease
  
Multemp ET150 (Urea) (Mineral)
¡Ý260
 280 -10¡«+160
normal temperature grease
  
Oneluba (Lithium) (Diester Mineral)
198
 270 -10¡«+110
normal temperature grease
  
Adrex (Lithium) (Mineral)
198
 300 -10¡«+120
normal temperature grease
  
Parmax   (Mineral)
180
 300 -10¡«+120
normal temperature grease
  
Emalube 1130 (Urea) (Mineral)
¡Ý260
 300 -10¡«+130
normal temperature grease
  
Unilube DL1 (Lithium) (Mineral)
185
 332 -10¡«+110
normal temperature grease
  
Alumix HD1   (Mineral)
247
 335 0¡«+120
normal temperature grease
  
Multemp LTS (Lithium) (Ester)
250
 201 -60¡«+130
low-temperature grease
  
Multemp SRH (Lithium) (Ester)
250
 201 -40¡«+150 low-temperature grease  
Multemp SB-M (Diurea) (Synthetic oil)
220
 260 -40¡«+200 high temperature high speed grease  
Multemp SC-C (Diurea) (Synthetic oil)
280
 300 -40¡«+200 high temperature pump-water grease  
ET-K (Diurea) (Synthetic oil/Ester)
260
 300 -40¡«+200 high temperture high speed alternators grease  
Kiuber
 Staburage NBU12 (Barium) (Mineral)
220
 270 -35¡«+150
normal temperature grease
  
Isofled NBU15 (Barium) (Diester Mineral)
220
 280 -30¡«+130
normal temperature grease
  
Asonic GLY32 (Lithium) (Synthetic)
190
 265-295 -50¡«+140 low-temperature grease  
Asonic GHY72 Polyhamstoff (Ester Mineral)
250
 250-280 -40¡«+180 high temperature low noise  
Isoflex SuperLds18 (Lithium) (Diester)
190
 280 -60¡«+130 low-temperature grease
LY218
Isoflex Super TEL (Lithium) (Ester Mineral)     -65¡«+70 low-temperature grease  
Isoflex LDS18 Special A (Lithium) (Diester)
190
 280 -60¡«+130 low-temperature grease  
Isoflex PDB38 CX100 (Lithium) (Ester)     -70¡«+120 low-temperature grease  
Barrierta IMI/V (PTFE) (Fluorinated)   280 -50¡«+220 high-low temperature grease  
Isoflex Topas NB52 (Barium) (Synthetic hydrocarbon)
204
 280 -60¡«+170 high-low temperature grease  
Barrierta L55/2 (PTFE) (Fluorinated)   280 -35¡«+260 high-low temperature grease  
Barrierta EL (PTFE) (Fluorinated)   280 -50¡«+180 high-low temperature grease  
Asonic HQ72-102 (Urea) (Ester)
240
 250-280 -40¡«+180 high-low temperature and low noise grease  
Barrierta TK44N2 Na-Komples (Silicone)     -60¡«+230 high-low temperature grease  
Isoflex NCA15 (Spec.Ca) (Ester Mineral oil)
180
 265-295 -40¡«+130 high speed grease  
Petamo GHY443 (Urea) (Ester)
250
 250-280 -20¡«+180 high temperature longevity grease  
Petamo GHY133 (Urea) (Synthetic Mineral oil)
240
 250-280 -25¡«+150
normal temperature grease
  
Dow Corning
 Molykote 33M (Lithium) (Silicone)
210
 260 -70¡«+180 high-low temperature grease
LY81
Molykote 44M (Lithium) (Silicone)
204
 260 -40¡«+200 high temperature grease
LY13
Molykote 55M (Lithium) (Silicone) -55¡«+165 low-temperature grease
LY52

 


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