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Jiashan Caoshi Oil Free Bearing Factory
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    No. 68, Fanjing Yudu Road, Ganyao Town, Jiashan County, Jiaxing City, Zhejiang Province
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SF-1P reciprocating bearing
SF-1P reciprocating bearing
SF-1P reciprocating bearing
SF-1P reciprocating bearing

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Product details
SF-1P reciprocating bearing
Material Structure
SF-1P reciprocating bearing is a novel formula product designed based on the structure of SF-1 material and the special working conditions of reciprocating motion. Its performance is similar to that of DD2 abroad.
Main parameters Technical Date
Static bearing capacity
250N/mm2
coefficient of friction
0.04~0.20
Maximum load capacity
Low speed operation
140N/mm2
Maximum linear velocity
dry friction
2.5m/s
Rotating and swinging motion
60N/mm2
Fluid lubrication
5m/s
Maximum PV value
(Dry friction)
Intermittent operation
3.6N/mm2.m/s
thermal conductivity
42W(m.K)-1
Long term operation
1.8N/mm2.m/s
coefficient of linear expansion
11x10-6K
Operating temperature
-195℃~＋280℃
Application Features Application CHARACTER
1. It has the advantages of strong lubrication ability, good wear resistance, and protection under new oil conditions.
2. It can effectively protect the surface of the frog from wear and tear.
3. More suitable for reciprocating motion scenarios
4. The product is suitable for motorcycle shock absorbers, various hydraulic cylinders, hydraulic motors, pneumatic components, etc
SF-1W Standard Tolerance Dimensional Table

Unit:mm
Matching shaft diameter tolerance Matching seat hole tolerance
(H7)		 Bearing outer diameter tolerance Bearing inner diameter tolerance after pressing into the seat hole Wall thickness 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 Bearing inner diameter tolerance after pressing into the seat hole Wall thickness 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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