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| • PRODUCT >> SF-1 Series Bushing Lead Free |
SLS bearing, a professional needle roller bearing and self-lubricating bushing manufacturer in China, is located in Zhejiang province, P. R. China being found since 1991. We can provide thousands of specifications of products, bushing linear, bushing material and also can design and manufacture the special or non-standard dimensions or specs of needle roller bearings according to the customer's requirement, drawing, sample. Our products, bushing linear, bushing material are widely used in the automobiles, vehicles, motorcycles, engineering equipment, electro-motive tools, textile and printing machinery, and OA equipment etc. |
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Features |
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| The features same as SLS"SF-1",but without lead, Suitable for dry running, low coefficient of friction, lower wear, good sliding characteristics, forming a transfer film can protect the mating metal surface, suitable for rotary and oscillating movement. High chemical resistance, lower absorption of water and swelling. Also performs well with lubrication. |
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Structure |
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1.PTFE fibres mixture 0.01~0.03mm,lead-free provides an excellent initial transfer film, which effectively coats the mating surface of the bearing assembly, forming an oxide type solid lubricant film.
2.Sintered bronze powder 0.20-0.35mm, provides max. thermal conductivity away from the bearing surface, also serves as a reservoir for the PTFE mixture.
3.Steel backing, provides high load carrying capacity, excellent heat dissipation.
4.Copper/Tin plating 0.002mm, provides good corrosion resistance. |
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Typical Application |
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| SLS"SF-1" Lead free have same application as the normal SLS"SF-1" type bearings, but much more for automotive industry, food industry, medicine machines, drink machines and so on which not allowed use the lead and difficulty forming the oil film or need dry lubrication parts. |
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Tech.Data ... |
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Max.Load |
Static |
250N/m㎡ |
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Friction coefficient |
0.03~0.20 |
Very low speed |
140N/m㎡ |
Max.speed |
Dry running |
2m/s |
Rotating oscillating |
60N/m㎡ |
Hydrodynamic |
>2m/s |
operation |
Max.PV dry running |
Short-term operation |
3.6N/m㎡﹡m/s |
Thermal conductivity |
42W(m﹡K)﹣1 |
Continuous operation |
1.8N/m㎡﹡m/s |
Coefficient of thermal |
11﹡10﹣6﹡K﹣1 |
expansion |
Temp.limit |
-195℃~＋280℃ |
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