sprag one-way clutch / full-face / bearing / backstop



  • Technology:


  • Construction:

    full-face, bearing

  • Applications:

    backstop, overrunning clutch

  • Torque:

    Max.: 23,000 Nm (16,963.9294 ft.lb)

    Min.: 375 Nm (276.5858 ft.lb)

  • Diameter:

    Max.: 130 mm

    Min.: 30 mm

  • Rotational speed:

    Max.: 9,000 rpm (56,548.67 rad.min-1)

    Min.: 130 rpm (816.81 rad.min-1)


The type RIZ is an overrunning clutch with the length up to 23 000 Nm. It is ideal for centrifugal lifting off of sprag type freewheel with the inner race rotating that is for ckstop, or overrunning clutch applications. The RIZ has an inner race designed for freewheeling. As a part of Stieber modular system it has a bearing supported by series 60 bearing, fitted with ZZ seal and is grease lubricated. It can be installed horizontally or vertically. It is designed with a G series cover. The GFR type has F series cover and is available without shaft seals.