| SF-1F composite oil-free flanged bearing
|
| Material Structure |
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A mixture of modified polytetrafluoroethylene (PTFE) and lead (Pb) with a thickness of 0.01~0.03mm is a wear-resistant material that can form a transfer film during operation to protect the grinding shaft.
2. The copper powder layer of 0.2-0.30mm improves the bonding strength between PTFE/Pb and steel plate, and has good load-bearing capacity and wear resistance. Copper is also a good thermal conductive material that can quickly transfer the heat generated during the operation of bearings.
3. Low carbon steel 0.7~2.3mm, improving the bearing's load-bearing capacity and heat transfer effect.
4. Copper/tin electroplating layer, with a copper coating of 0.008mm and a tin coating of 0.005mm, provides the bearing with excellent corrosion resistance. |
| Main parameters Technical Date |
|
Static bearing capacity |
250N/mm2 |
|
coefficient of friction |
0.03~0.20 |
Maximum load capacity |
Low speed operation |
140N/mm2 |
|
Maximum linear velocity |
dry friction |
2m/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 |
11x11-6K |
Operating temperature |
-195℃~＋280℃ |
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| Application Features Application CHARACTER |
1. Oil free or low oil lubrication, suitable for situations where refueling is impossible or difficult, and can be used without maintenance or with minimal maintenance;
2. Good wear resistance, low friction coefficient, and long service life; three Can be used within the range of -195 ℃ to+280 ℃;
4. Good running in performance, low noise, and no pollution; five Thin walled structure, lightweight, capable of reducing mechanical volume;
6. During operation, it can form a transfer film to protect the grinding shaft without biting the shaft;
7. The hardness requirement for grinding shafts is low, and shafts that have not been quenched and tempered can be used, thereby reducing the difficulty of machining related parts;
8. No water absorption or oil absorption, low thermal expansion coefficient, good heat dissipation, and stable size;
9. The back of the steel can be electroplated with various metals, so it can be used in corrosive media without rusting;
At present, it has been widely used in the sliding parts of various machinery, such as hydraulic cylinder guide sleeves, gear pumps, textile machinery, vending machines, plastic molding machines, die-casting machines, rubber machinery, tobacco machines, fitness equipment, office machinery, hydraulic handling vehicles, motorcycles, agricultural and forestry machinery, etc. in automated mechanical equipment (telescopic, swinging, sliding, bending, rotating, revolving parts). |
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| Standard dimensions of SF-1F flanged series bearings (SF-1, SF-1T, SF-1S, SF-1P, SF-1D, SF-1B) |
|
Unit: mm |
shaft diameter |
Seat hole H7 |
code name |
size |
f1
|
f2
|
d1
|
d2
|
d3±0.25 |
L±0.25 |
l1-0.2 |
6-0.013
-0.028 |
8+0.015 |
06040 |
6 |
8 |
12 |
4 |
1 |
0.5 |
0.3 |
06070 |
7 |
8-0.013
-0.028 |
10+0.015 |
08055 |
8 |
10 |
15 |
5.5 |
08075 |
7.5 |
10-0.016
-0.034 |
12+0.018 |
10070 |
10 |
12 |
18 |
7 |
10090 |
9 |
10120 |
12 |
12-0.016
-0.034 |
14+0.018 |
12070 |
12 |
14 |
20 |
7 |
12090 |
9 |
12120 |
12 |
14-0.016
-0.034 |
16+0.018 |
14120 |
14 |
16 |
22 |
12 |
14170 |
17 |
15-0.016
-0.034 |
17+0.018 |
15090 |
15 |
17 |
23 |
9 |
15120 |
12 |
15170 |
17 |
16-0.016
-0.034 |
18+0.018 |
16120 |
16 |
18 |
24 |
12 |
16170 |
17 |
18-0.016
-0.034 |
20+0.021 |
18120 |
18 |
20 |
26 |
12 |
18170 |
17 |
18200 |
20 |
20-0.020
-0.041 |
23+0.021 |
20115 |
20 |
23 |
30 |
11.5 |
1.5 |
0.8 |
0.4 |
20165 |
16.5 |
20215 |
21.5 |
22-0.020
-0.041 |
25+0.021 |
22150 |
22 |
25 |
32 |
15 |
22200 |
20 |
25-0.020
-0.041 |
28+0.021 |
25115 |
25 |
28 |
35 |
11.5 |
25165 |
16.5 |
25215 |
21.5 |
30-0.025
-0.050 |
34+0.025 |
30160 |
30 |
34 |
42 |
16 |
2 |
1.0 |
0.5 |
30260 |
26 |
35-0.025
-0.050 |
39+0.025 |
35160 |
35 |
39 |
47 |
16 |
35260 |
26 |
40-0.025
-0.050 |
44+0.025 |
40260 |
40 |
44 |
53 |
26 |
40400 |
40 |
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