Selecting Mining Wear Parts: Equipment, Interfaces and Operating Conditions
Identify the equipment and working position before comparing materials or dimensions. Check the complete assembly, operating conditions and wear records.
Ball, Gate, Globe and Check Valves: Select by Function
Distinguish between isolation, flow control and backflow prevention, then check the fluid, pressure and temperature conditions, and connection standards.
Disc, Gear and Flexible Couplings: Start with the Construction
Identify the torque-transmitting elements, then check torque, speed, shaft connections and allowable misalignment.
Why are disc couplings used in precision and high-speed drives?
Metal disc packs transmit torque and accommodate permitted misalignment through elastic deformation. The disc packs themselves require no lubrication. Suitability for pumps, fans, ...
When are cross-type universal joint shafts used?
A universal joint shaft transmits torque between shafts whose axes are at an angle. Applications include construction machinery, vehicle drives, rolling mills and large conveying e...
Where are crowned-tooth gear couplings used?
Gear engagement transmits substantial torque and accommodates shaft misalignment within the limits specified for the model. Applications include metallurgy, mining and other loaded...
What commonly causes coupling damage?
Common causes include excessive installation misalignment, sustained overload or shock loading, inadequate lubrication of gear or chain couplings, ageing or wear of elastic element...
Which parameters are needed to select a coupling?
Check nominal torque, operating speed, shaft diameters, radial, angular and axial misalignment, and the effects of temperature, dust, moisture and shock loads. Specify any requirem...
What do shaft couplings do, and how do their designs differ?
A coupling connects shafts and transmits torque. Its ability to accommodate misalignment, damp vibration or provide overload protection depends on its construction. Rigid, flexible...