1. Power or torque related to alternating load you require. torque[Nm] power[CV]torque[Nm] power[CV] series 1 210 16 170 24 series 2 280 21 230 32 series 3 400 30 320 45 series 4 460 35 380 53 series 5 620 47 500 70 series 6 830 64 690 98 series 7 980 75 800 113 series 8 1240 95 1000 140 2.Cross journal(Universal joint) size which decides torque of a PTO Shaft: Ref. A mm Bmm Series 1 1.01 54 22 Series 2 2.01 61.3 23.8 Series 3 3.01 70 27 Series 4 4.01 74.6 27 Series 5 5.01 80 30.2 Series 32 32.01 76 32 Series 6 6.01 92 30.2 Series 7N 7N.01 94 35 Series 7 7.01 106.5 30.2 Series 8 8.01 106.5 353 Closed overall length (or cross to cross) of a PTO shaft.4 Tubes or Pipes We've already got Triangular profile tube and Lemon profile tube for all the series we provide. And we have some star tube, splined tube and other profile tubes required by our customers (for a certain series). (Please notice that our catalog doesn't contain all the items we produce) If you want tubes other than triangular or lemon, please provide drawings or pictures.5 End yokes We've got 13 types of splined yokes and 8 types of plain bore yokes. I will suggest the usual type for your reference. You can also send drawings or pictures to us if you cannot find your item in our catalog.6 Safety devices or clutches I will attach the details of safety devices for your reference. We've already have Free wheel (RA), Ratchet torque limiter(SA), Shear bolt torque limiter(SB), 3types of friction torque limiter (FF,FFS,FCS) and overrunning couplers(adapters) (FAS).7 For any other more special requirements with plastic guard, connection method, color of painting, package, etc., please feel free to let me know.