standard connecting links are used when roller chains are operated under normal conditions. for severe applications, press fit connecting links are suggested.
TRASCO® ES is our zero backlash coupling designed to compensate for misalignment and vibration dampening for indexing applications. The compact design of TRASCO® ES makes it the right choice for all precise motion applications.
The TRASCO ES consist of two hubs, which are either made of high-strength aluminium (up to the 38/45 size) or steel (from size 42) that are connected with an elastic element.
Spider detail
Color : Yellow
Shore : 92 Sh.A
Compound : Polyurethane
Admissible Temperature [°C] :the range is between -40 and +90°C
Our pulleys can be used for application with a speed up to 35m/s. The pulley dimensions are very accurate as they are manufactured only by means of CNC or automatic lathes.
For higher speed is strongly recomended to use steel as material of construction. Our PBT pulleys are satically balanced according to ISO.
The PT pulleys are not balanced, as they do not have a finished bores.
Here are the dimensions of "PBT" SPA with taper bush 1210 :
- Belt type : SPA
- Taperbush : 1210
- Shaft diameter range : 12 - 32
- Pitch diameter : refer to numbers writen after "PBT" in every product name.
For example, product name : PBT080SPA2 (1210); so, the pitch diameter is 80 mm
- Outside diameter : you can add the pitch diameter with 5.6 to know the length of outside diameter.
For example, the product is PBT080SPA2 (1210); so the outside diameter is 80 + 5.6 = 85.6 mm
- Groove : refer to the last number in every product name.
HTD pulleys have a different design from the traditional toothed pulleys. The axial grooves are designed to allow the beltteeth to catch the pulley teeth with negligible triction. HTD Pulleys are available with full hub and for assembly with SER-SIT taper bushing.
HTD pulleys have a different design from the traditional toothed pulleys. The axial grooves are designed to allow the beltteeth to catch the pulley teeth with negligible triction. HTD Pulleys are available with full hub and for assembly with SER-SIT taper bushing.