SF-1B PTFE Coated Bushing
The SF-1B bearing is a PTFE COATED BUSHING with an inner diameter of 28 mm , an outer diameter of 32 mm, a width of 1.970-2.005 mm. It typically uses 0.02 grade precision tolerances and N/A type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
Material properties
SF-1B bronze self-lubricating bearing with tin bronze as the base, intermediate sintered bronze spherical powder, surface rolling PTEE and high temperature resistant filling material. It has a very high safety factor, in the continuous work can not stop repair place and the high temperature gas places not suitable. It has been widely used in the metallurgy of iron and steel industry, continuous casting billet rolling, high temperature furnace equipment, cement grouting pump and screw conveyor. It can be in the external combination steel, or in the form of flanging, reach the end, inner hole and friction effect.
Technical parameters
Maximum load
Jing Chengzai
250N/mm2
The coefficient of friction
0.03~0.20
Low speed operation
140N/mm2
The maximum line speed
Dry friction
Rotation, swing
60N/mm2
Fluid lubrication
>
The maximum PV value
(dry)
Intermittent operation
3.6N/mm2.m/s
Thermal conductivity
70W (m.K) -1
Long term operation
1.8N/mm2.m/s
Coefficient of linear expansion
17x11-6K
The use of temperature
~
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