The self-lubricate characteristics of the Saibo PTFE linear bushes, make them an ideal linear solution in applications and environments where additional application of lubrication is not possible or acceptable. However, if conditions permit, additional lubrication can reduce friction, by up to 30%. Which can extend the PTFE Bushes life considerably.
The recommended lubrication is a Petroleum base oil or grease
Note: PTFE lubricates should NOT be used.
To achieve the best rate of wear and performance from a PTFE self-lubricating linear bearing, it is recommended the following shaft parameters are used:
Surface roughness: Ra 0.4
When designing a linear system using PTFE bushes, the Pressure Velocity (PV) factor is a key parameter to consider. PV can define the frictional performance between system's pressure and velocity. PTFE's mixture has an intrinsically limiting PV rating, while the system running under certain conditions. Put simply, the more load applied to system, the slower it must move to avoid exceeding the PV limit. The reverse is also true, more speed, less available load capacity.
Overloading and exceeding the Max speed will cause frictional heat and accelerated wear.
Max PV value: 0.7 N/mm ×m/s
Load capacity: 20 N/ mm (MPa)
Max speed: 1.5m/s
Working temperature: -50°C ~ +260°C
Friction Coefficient: 0.03~0.2