Ball Spline Assembly
The PowerTorq™ Ball Spline assembly uses rolling elements to carry a load similar to an anti-friction (ball) bearing. These elements do not wear when properly lubricated during normal use. The closed path that the bearing balls follow through the outer race is referred to as a circuit. The number of potential circuits varies with the diameter of the spline shaft. When a circuit is loaded with bearing balls, it is referred to as an "active circuit".
PowerTorq™ inner races are made of high quality 4150 alloy steel, induction hardened to Rc 56-60. PowerTorq™ outer races are made of hardened steel with ball tracks heat treated to Rc 56-60. PowerTorq™ ball spline inner and outer races are protected with a black oxide finish.
PowerTorq™ Ball Splines are straight within .010 in/ft when shipped from the factory, and do not exceed .030 inch in any 6 foot section. Twist is limited to .015 in/ft at the ball circle diameter.
|Inner Race||Outer Race|
|Product Info||Details||Product Info||Details||Performance Specifications|
|Product||Nominal Diameter [in]||Active Circuits||Root Diameter [in]||Part Number||Ball Return||Dynamic Torque [in-lb]||Static Torque [in-lb]|
|PowerTorq 0375-3-0156 HPR6900||0.375||3||0.20||HPR6900||Cast||200||626||Specs Configure/Quote|
|PowerTorq 0625-6-0187 HPR8943||0.625||6||4.25||HPR8943||Cast||1770||3540||Specs Configure/Quote|
|PowerTorq 1000-6-0187 HPR8944||1.000||6||0.80||HPR8944||Cast||2600||7800||Specs Configure/Quote|
|PowerTorq 1500-6-0250 SOR8945||1.500||6||1.25||SOR8945||Stamped||8400||23170||Specs Configure/Quote|
|PowerTorq 1500-6-0250 HPR8945||1.500||6||1.25||HPR8945||Cast||8400||23170||Specs Configure/Quote|
|PowerTorq 2000-6-0312 HPR8946||2.000||6||1.67||HPR8946||Cast||16000||40270||Specs Configure/Quote|
|PowerTorq 2500-6-0375 HPR8947||2.500||6||2.10||HPR8947||Cast||27000||62250||Specs Configure/Quote|