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Jiashan Bangsheng Bearing Co., Ltd.
Add:No. 38, Jinjia Avenue, Jiashan County, Zhejiang Province
Tel:86-573-84252262
Fax:86-573-84252262
Mob:15067330806 13957343967
Url:www.jsbszc.com
 
  Product
Sf-2y boundary lubricated lead-free bearing
Description  
MATERIAL STRUCTURE
1. The mixture of modified POM and lead is 0.3 ~ 0.5mm, which has high wear resistance and low friction coefficient even in case of instantaneous oil shortage. The oil storage pit with spiral angle on the surface of bearing with regular arrangement must be coated with lubricating grease during assembly.
2. The copper powder layer is 0.2 ~ 0.3mm, which has good bearing capacity and wear resistance. Good thermal conductivity can timely transfer the heat generated in the bearing operation process. The composite material can penetrate into the gap of copper powder ball and improve the bonding strength.
3. Low carbon steel 0.4 ~ 2.2mm, improve bearing capacity and heat transfer.
4. Copper / Tin Electrodeposition, copper coating 0.008mm, tin coating 0.005mm, so that the bearing has a good corrosion resistance function.
TECHNICAL DATE
Maximum load
Dead load
250N/mm2
Service temperature
-40℃~+130℃
 
Low speed operation
140N/mm2
 
Maximum linear speed
grease
2m/s
 
Rotation and swing
70N/mm2
   
Continuous oil feeding
4m/s
Maximum PV value
2.8N/mm2.m/s
 
Thermal conductivity
4W(m.K)-1
Coefficient of linear expansion
11x10-6K
 
friction coefficient
0.05~0.20
APPLICATION CHARACTER

It is especially suitable for the rotating motion, swinging motion under heavy load and low speed as well as the parts that are often opened and closed under load and are not easy to form fluid lubrication; it can be used for a long time under the boundary lubrication condition without oil maintenance, and the oil in the process can prolong the service life of the bearing more; the plastic layer on the surface can leave a certain margin during the forming and processing of the shaft sleeve and press into the opening After that, it can be processed by itself to achieve better assembly size.

At present, it is mainly used in metallurgical machinery, mining machinery, water conservancy machinery, automobile chassis, construction machinery, agricultural machinery, steel rolling machinery, etc.

d
D
Axle diameter
Seat holeH7
wall thickness
hOil hole
f1
f2
L0-0.40
Minimum
Maximum
10
15
20
25
30
35
40
45
50
60
10
12
10-0.022
12+0.018
0.955
0.980
4
0.6
0.3
1010
1015
1020
             
12
14
12-0.027
14+0.018
1210
1215
1220
             
14
16
14-0.027
16+0.018
 
1415
1420
             
15
17
15-0.027
17+0.018
 
1515
1520
1525
           
16
18
16-0.027
18+0.018
 
1615
1620
1625
           
18
20
18-0.027

20+0.021

 
1815
1820
1825
           
20
23
20-0.033
23+0.021
1.445
1.475
0.6
0.4
 
2015
2020
2025
2030
         
22
25
22-0.033
25+0.021
 
2215
 
2225
           
25
28
25-0.033
28+0.021
6
 
2515
2520
2525
2530
         
28
32
28-0.033
32+0.025
1.935
1.970
1.2
0.4
   
2820
 
2830
         
30
34
30-0.033
34+0.025
   
3020
3025
3030
3035
3040
     
35
39
35-0.039
39+0.025
   
3520
 
3530
3535
3540
     
40
44
40-0.039
44+0.025
8
   
4020
 
4030
4035
4040
 
4050
 
45
50
45-0.039
50+0.025
2.415
2.460
1.8
0.6
   
4520
 
4530
 
4540
4545
4550
 
50
55
50-0.046
55+0.030
       
5030
 
5040
 
5050
5060
55
60
55-0.046
60+0.030
       
5530
 
5540
 
5550
5560
60
65
60-0.046
65+0.030
       
6030
 
6040
 
6050
6060
Unit(单位):mm 
d
D
Axle diameter
Seat holeH7
wall thickness
hOil hole
f1
f2
L0-0.40
Minimum
Maximum
40
50
60
80
90
95
100
110
120
65 70
65-0.046
70+0.030
2.415
2.460
8
1.8
0.6
6540   6560            
70 75
70-0.046
75+0.030 7040 7050   7080          
75 80 75-0.046 80+0.030 7540   7560 7580          
80 85 80-0.046 85+0.035
2.385
2.450
9.5
1.8
1.8
8040   8060 8080          
85 90 85-0.054 90+0.035 8540   8560 8580          
90 95 90-0.054 95+0.035 9040   9060 9080 9090        
100 105 100-0.054 105+0.035   10050   10080   10095      
105 110 105-0.054 110+0.035     10560 10580   10595   105110  
110 115 110-0.054 115+0.035     11060 11080   11095

 

  110110  
120 125 120-0.054 125+0.035
1.8
      12060 12080       120110  
125 130 125-0.063 130+0.040     12560         125110

 

 
130 135 130-0.063 135+0.040   13050 13060 13080     130100    
140 145 140-0.063 145+0.040   14050 14060 14080     140100    
150 155 150-0.063 155+0.040   15050 15060 15080     150100    
160 165 160-0.063 165+0.040 9.5   16050 16060 16080     160100    
170 175 170-0.063 175+0.040   17050   17080     170100    
180 185 180-0.063
185+0.040
  18050 18060 18080     180100    
190 195 190-0.072 195+0.046   19050 19060 19080     190100   190120
200 205 200-0.072 205+0.046   20050 20060 20080     200100   200120
220 225 220-0.072 225+0.046 9.5   22050 22060 22080     220100   220120
240 245 240-0.072 245+0.046   24050 24060 24080     240100   240120
250 255 250-0.081 255+0.052   25050 25060 25080     250100   250120
260 265 260-0.081 265+0.052   26050 26060 26080     260100   260120
280 285 280-0.081 285+0.052   28050 28060 28080     280100   280120
300 305 300-0.081 305+0.052   30050 30060 30080     300100   300120
 
 
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Add:No. 38, Jinjia Avenue, Jiashan County, Zhejiang Province  Tel:86-573-84252262  Fax:86-573-84252262