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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-1d hydraulic special bearing
Description  

1、Polytetrafluoroethylene and lipophilic fiber mixture 0.01-0.03mm
2、Stainless steel back 0.7-2.3mm
3、Spherical bronze powder 0.2-0.3mm
4、Electroplated layer: 0.005mm thick tin plating layer, or 0.008mm thick copper plating layer
Product description:
Sf-1d hydraulic special bearing is a new material designed on the basis of sf-1p in combination with the working principle of oil cylinder and shock absorber. It is more wear-resistant under the condition of no oil. In addition to the advantages of sf-1p, this product is especially suitable for the occasion of frequent reciprocating large lateral force. Its performance is similar to that of foreign DP4. At present, this product gradually replaces sf-1p product, and is suitable for automobile, motorcycle shock absorber and various hydraulic cylinders. Best for use.
Technical parameters:

Maximum bearing pressure: 140N / mm2
Applicable temperature range: - 195 ~ + 280 ℃
Maximum sliding speed: 3m / S
Friction coefficient: 0.04 ~ 0.20
Allowable maximum PV value (dry): 3.8n/mm2.m/s
Allowable maximum PV value (oil): 50n / mm2. M / S

Application characteristics

1. The mixture of PTFE and lipophilic fiber can form a good transfer film to protect the grinding shaft.
2. Good wear resistance and low friction coefficient.
3. Good running in performance, no shaft undercut.
4. It can be used in rotation, swing and reciprocating motion.
5. Because it does not contain lead, it can be used in food machinery, medical machinery and other green environmental protection equipment.
6. In addition to the sf-1p features, the products are especially suitable for the occasions with frequent reciprocating motion and large lateral force, and are suitable for the fields of automobile, motorcycle shock absorbers and various hydraulic cylinders.

SF-1Dseries  chemical properties
Bearing type In the air In vacuum In the water In steam Weak acid Medium acid Strong acid In alkaline solution
SF-1D good good good good difference no no good
SF-1D End friction and wear test
Model Test time Test conditions friction coefficient

Final temperature

(degree Celsius)

Final wear(mm)
lubrication speed pressure
SF-1D 3hr 0.4m/s 3.5N/mm2 0.175 98 0.012
SF-1D 3hr 0.4m/s 3.5N/mm2 0.054 46 0.004
SF-1D Standard tolerance dimension table
Matching shaft diameter tolerance
Matching seat hole tolerance(H7 )
Bearing outer diameter tolerance
Tolerance of inner diameter of bearing after pressing into seat hole
Wall
thick-
ness
 
f1
f2
L0-0.40 (d≤φ30 L -0.3
d>φ30 L -0.4)
6
8
10
12
15
20
25
30
40
50
60
6 -0.013
-0.028
8 +0.015

8 +0.055
+0.025

5.990
6.055
0.980
1.005
0.6
0.3

0606

0608

0610

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8 -0.013
-0.028
10 +0.015
10 +0.055
+0.025
7.990
8.055

0806

0808

0810

08012

08015

 

 

 

 

 

 

 

 

 

 

 

 

10 -0.016
-0.034
12 +0.018

12 +0.065
+0.030

9.990
10.058

1006

1008

1010

1012

1015

1020

 

 

 

 

 

 

 

 

 

 

12 -0.016
-0.034
14 +0.018
14 +0.065
+0.030
11.990
12.058

1206

1208

1210

1212

1215

1220

1225

 

 

 

 

 

 

 

 

13 -0.016
-0.034
15 +0.018
15 +0.065
+0.030
12.990
13.058

 

 

 

 


1310

 

 

 

 


1320

 

 

 

 

 

 

 

 

14 -0.016
-0.034
16 +0.018
16+0.065
+0.030
13.990
14.058

 

 

 


1410

1412

1415

1420

1425

 

 

 

 

 

 

 

 

15 -0.016
-0.034
17 +0.018
17+0.065
+0.030
14.990
15.058

 

 

 

 


1510

1512

1515

1520

1525

 

 

 

 

 

 

 

16 -0.016
-0.034
18 +0.018
18 +0.065
+0.030
15.990
16.058

 

 

 

 


1610

1612

1615

1620

1625

 

 

 

 

 

 

 

 

17 -0.016
-0.034
19 +0.021
19 +0.075
+0.035
16.990
17.061

 

 

 

 


1710

1712

 

 


1720

 

 

 

 

 

 

 

 

 

 

18 -0.016
-0.034
20 +0.021
20 +0.075
+0.035
17.990
18.061

 

 

 

 


1810

1812

1815

1820

1825

 

 

 

 

 

 

 

20 -0.020
-0.041
23 +0.021
23 +0.075
+0.035
19.990
20.071
1.475
1.505
0.6
0.4

 

 

 

 


2010

2012

2015

2020

2025

2030

 

 

 

 

 

22 -0.020
-0.041
25 +0.021
25 +0.075
+0.035
21.990
22.071

 

 

 

 


2210

2212

2215

2220

2225

2230

 

 

 

 

 

24 -0.020
-0.041
27 +0.021
27 +0.075
+0.035
23.990
24.071

 

 

 

 

 

 

 


2415

2420

2425

2430

 

 

 

 

 

 

25 -0.020
-0.041
28 +0.021
28 +0.075
+0.035
24.990
25.071

 

 

 

 


2510

2512

2515

2520

2525

2530

2540

2550

 

 

28 -0.020
-0.041
32 +0.025
32 +0.085
+0.045
27.990
28.085
1.970
2.005
1.2
0.4

 

 

 

 

 

 


2815

2820

2825

2830

2840

 

 

 

 

30 -0.020
-0.041
34 +0.025
34 +0.085
+0.045
29.990
30.285

 

 

 

 

 


3012

3015

3020

3025

3030

3040

 

 

 

 

32 -0.025
-0.050
36 +0.025
36 +0.085
+0.045
31.990
32.085

 

 

 

 

 

 

 

 

 

 


3220

 

 


3230

3240

 

 

 

 

35 -0.025
-0.050
39 +0.025
39 +0.085
+0.045
34.990
35.085

 

 

 

 

 

 


3512

3515

3520

3525

3530

3540

3550

 

 

38 -0.025
-0.050
42 +0.025
42 +0.085
+0.045
37.990
38.085

 

 

 

 

 

 

 

 


3815

 

 

 

 


3830

3840

 

 

 

 

40 -0.025
-0.050
44 +0.025
44 +0.085
+0.045
39.990
40.085

 

 

 

 

 

 


4012

 

 


4020

4025

4030

4040

4050

 
Matching shaft diameter tolerance
Matching seat hole tolerance(H7 )
Bearing outer diameter tolerance
Tolerance of inner diameter of bearing after pressing into seat hole
Wall
thick-
ness
f1
f2
L0-0.40
20
25
30
40
50
60
70
80
100
115
45 -0.025
-0.050
50 +0.025
50 +0.085
+0.045
44.990
45.105
2.460
2.505
1.8
0.6

4520

4525

4530

4540

4550
     

 

 

 
50 -0.025
-0.050
55 +0.030
55 +0.100
+0.055
49.990
50.110

5020
 

5030

5040

5050

5060
   

 

 

 
55 -0.030
-0.060
60 +0.030
60 +0.100
+0.055
54.990
55.110
   

5530

5540

5550

5560
       
60 -0.030
-0.060
65 +0.030
65 +0.100
+0.055
59.990
60.110
   

6030

6040

6050

6060

6070
     
65 -0.030
-0.060
70 +0.030
70 +0.100
+0.055
64.990
65.110
   

6530

6540

6550

6560

6570
     
70 -0.030
-0.060
75 +0.030
75 +0.100
+0.055
69.990
70.110
     

7040

7050

7060

7070

7080
 

 

 

75 -0.030
-0.060
80 +0.030
80 +0.100
+0.055
74.990
75.110
   

7530

7540

7550

7560

7570

7580
   
80 -0.030
85 +0.035
85 +0.120
+0.070
80.020
80.155
2.440
2.490
1.8
0.6
     

8040

8050

8060

8070

8080

80100
 
85 -0.035
90 +0.035
90 +0.120
+0.070
85.020
85.155
     

8540
 

8560
 

8580

85100
 
90 -0.035
95 +0.035
95 +0.120
+0.070
90.020
90.155
     

9040

9050

9060
 

9080

90100

 

 

95 -0.035
100 +0.035
100 +0.120
+0.070
95.020
95.155
       

9550

9560
 

9580

95100

 

 

100 -0.035
105 +0.035
105 +0.120
+0.070

100.020

100.155

       

10050

10060
 

10080
 

100115
105 -0.035
110 +0.035
110 +0.120
+0.070
105.020
105.155
         

10560
 

10580
 

105115
110 -0.035
115 +0.035
115 +0.120
+0.070
110.020
110.155
         

11060
 

11080
 

110115
120 -0.035
125 +0.040
125 +0.170
+0.100
120.070
120.210
2.415
2.465
1.8
0.6
         

12060
 

12080

112100
 
125 -0.040
130 +0.040
130 +0.170
+0.100
125.070
125.210
         

12560
   

125100

125115
130 -0.040
135 +0.040
135 +0.170
+0.100
130.070
130.210
         

13060
 

13080

130100
 
140 -0.040
145 +0.040
145 +0.170
+0.100
140.070
140.210
         

14060
 

14080

140100
 
150 -0.040
155 +0.040
155 +0.170
+0.100
150.070
150.210
         

15060
 

15080

150100
 
160 -0.040
165 +0.040
165 +0.170
+0.100
160.070
160.210
         

16060
 

16080

160100

160115
180 -0.040
185 +0.046
185 +0.210
+0.130
180.070
180.216
2.415
2.465
2.415
2.465
1.8
1.8
0.6
0.6
             

18080

180100
 
190 -0.046
195 +0.046
195 +0.210
+0.130
190.070
190.216
             

19080

190100
 
200 -0.046
205 +0.046
205 +0.210
+0.130
200.070
200.216
         

20060

20080

200100
 
220 -0.046
225 +0.046
225 +0.210
+0.130

220.070

220.216

             

22080

220100
 
250 -0.046
255 +0.052
255 +0.260
+0.170

250.070

250.222

             

25080

250100
 
260 -0.052
265 +0.052
265 +0.260
+0.170
260.070
260.222
             

26080

260100
 
280 -0.052
285 +0.052
285 +0.260
+0.170

280.070

280.222

             

28080

280100
 
300 -0.052
305 +0.052
305 +0.260
+0.170

300.070

300.222

             

30080

300100
 
 
 
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Add:No. 38, Jinjia Avenue, Jiashan County, Zhejiang Province  Tel:86-573-84252262  Fax:86-573-84252262