The sizes of differential friction rings as bellow:
| Type | Sizes(OD*ID*W) | Type | Sizes(OD*ID*W) |
| Ball lock rings | φ75*φ60*25mm | Toshin rings | φ75*φ50*50mm |
| Key type rings | φ75*φ50*10mm | Nishimura rings | φ75*φ45*30mm |
| Key type rings | φ75*φ50*15mm | Nishimura rings | φ75*φ45*40mm |
| Key type rings | φ75*φ50*20mm | Nishimura rings | φ75*φ45*45mm |
| Key type rings | φ75*φ50*37mm | Nishimura rings(Double line) | φ75*φ45*22mm |
| Key type rings | φ75*φ55*50mm | Nishimura rings(Double line) | φ75*φ45*42mm |
Differential shaft(friction shaft,air friction controlled rewinding shaft).This shaft is used for rewinding and the special unwinding of slitter machine.Is controlled its friction torque by compressed air.We are the manufacturer of differential air shaft, obove friction rings are some of our standard sizes, OEM is welcome.
The differential shaft is structure by the mandrel and multiple sets of friction rings (differential rings).The friction ring can independent sliding,torque is controlled in central pressure or lateral transfer pressure.ensure every coil rewinding in a constant tension,it’s uniform and tidily from inside to outside diameter.
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