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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 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
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.(to see table 4.)
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.
Bearing Vibration speed Grade can not be over the following Values(dB)
 
d  Diameter Series(1)   Diameter Series(2)  Diameter Series(3)
m Z1 Z2 Z3 Z1 Z2 Z3 Z1 Z2 Z3
3 34 32 28 35 32 30 36 33 31
4 34 32 28 35 32 30 36 33 31
5 36 34 30 37 34 32 37 35 33
6 36 34 30 37 34 32 37 35 33
7 38 35 31 38 36 34 - - -
8 38 35 31 38 36 34 - - -
9 40 36 32 40 37 35 - - -
10 42 38 33 42 39 35 44 40 37
12 43 39 34 43 39 35 55 40 37
15 44 40 35 44 41 36 46 42 38
17 44 40 35 45 41 36 47 42 38
20 45 41 36 46 42 38 48 43 39
25 46 42 38 47 43 40 49 44 41
30 47 43 39 48 44 41 50 45 42
40 51 46 42 52 47 44 54 49 45
45 43 48 45 54 49 46 56 51 47
50 54 50 47 55 51 48 57 53 49
55 56 52 49 57 53 50 59 54 51
60 58 54 51 59 54 51 61 56 53
 
Single Bearing Vibration Speed Grade Allowed The Limit Value(µm/s) tablb 5.
 
d   V1 V2 V3
mm Low Brand Medium Brand High Brand Low Brand Medium Brand High Brand Low Brand Medium Brand High Brand
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
25 220 160 125 130 100 75 80 60 45
30 250 200 160 150 120 100 90 75 60
35 250 200 160 150 120 100 90 75 60
40 300 250 220 180 150 130 110 90 80
 
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 group 4 group 5
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(Table 7)
Manufacturer Brand Drop point ℃ Consistency Operating Tem range ℃ Selection Criteria NMB Code
Shell Alvania R2 185 265-295 -35~+120 general purpose  
Darina 2 250 265-295 -25~+150 general purpose  
Chevron SRI-2 240 255-280 -30~+120 water resistant  
Mobil Mobilux 2 190 265-290 -10~+110 genreal purpose  
Mobil 22 192 250-274 -40~+120 genreal purpose  
Mobil 28 260 265-295 -55~+175 wide range Temperature  
Mobil 48 260 240-270 -60~+170 high temperature grease  
Esso Beacon 325 193 290 -60~+120 low-temperature grease LG20
Polyrex EM 260 288 -40~+180 high temperature low noise  
Andok B 260 280 -40~+120 normal temperature grease LG38
Andok 260 200 250 -30~+150 normal temperature grease LG71
Arapen RB300 200 250 -30~+100 normal temperature grease  
UNIREX N2 250 280 -40~+180 high temperature low noise  
Polyrex EP2 280 280 -40~+180 high temperature low noise  
UNIREX N3 250 235 -40~+180 high temperature low noise  
Kyodo Yushi Multemp PS2 189 280 -50~+110 low-temperature grease LY72
Multemp SRL 191 245 -40~+150 low noise grease LY121
Multemp SC-A ≥260 280 0~+160 normal temperature grease  
Multemp ET150 ≥260 280 -10~+160 normal temperature grease  
Oneluba 198 270 -10~+110 normal temperature grease  
Adrex 198 300 -10~+120 normal temperature grease  
Parmax 180 300 -10~+120 normal temperature grease  
Emalube 1130 ≥260 300 -10~+130 normal temperature grease  
Unilube DL1 185 332 -10~+110 normal temperature grease  
Alumix HD1 247 335 0~+120 normal temperature grease  
Multemp LTS 250 201 -60~+130 low-temperature grease  
Multemp SRH 250 201 -40~+150 low-temperature grease  
Multemp SB-M 220 260 -40~+200 high temperature high speed grease  
Multemp SC-C 280 300 -40~+200 high temperature high speed grease  
ET-K 260 300 -40~+200 high temperture high speed alternators grease  
Kluber Staburage NBU12 220 270 -35~+150 normal temperature grease  
ISofled NBU15 220 280 -30~+130 normal temperature grease  
Asonic GLY32 190 265-295 -50~+140 low-temperature grease  
Asonic GHY72 250 250-280 -40~+180 high temperature low noise  
Isoflex SuperLds18 190 280 -60~+130 low-temperature grease  
Isoflex Super TEL     -65~+70 low-temperature grease  
Isoflex LDS18 Special A 190 280 -60~+130 low-temperature grease LY218
Isoflex PDB38 CX100     -70~+120 low-temperature grease  
Barrierta IMI/V   280 -50~+220 high-low temperature grease  
Isoflex Topas NB52 204 280 -60~+170 high-low temperature grease  
Barrierta L55/2   280 -35~+260 high-low temperature grease  
Barrierta EL   280 -50~+180 high-low temperature grease  
Asonic HQ72-102 240 250-280 -40~+180 high-low temperature and low noise grease  
Barrierta TK44N2     -60~+230 high-low temperature grease  
Isoflex NCA15 180 265-295 -40~+130 high speed grease  
Petamo GHY443 250 250-280 -20~+180 high temperature longevity grease  
Petamo GHY133 240 250-280 -25~+150 normal temperature grease  
China Hangu Hangu 2 198 265-295 -10~+130 low noise serive  
Dow Corning Molykote 33M 210 260 -70~+180 high-low temperature grease LY81
Molykote 44M 204 260 -40~+200 high temperature grease LY13
Molykote 55M     -55~+165 low-temperature grease LY52