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GMN backstops with momentum lever are a combination of a complete unit out of series FND 400 with a momentum lever.

Type series RA 400

GMN backstop with keyway at the inner ring and momentum lever

  • Shaft diameters 15 to 40 mm as standards
  • Complete unit double sealed with ball- and roller bearing support
  • Filled up with oil for lifetime
  • Keyway according to DIN 6885 Bl.1
  • Standard design with FE 400 (M) inserts - on request available with FE 400 Z inserts - please add suffix "Z" to your order.

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The company Stringbike enters the market with a revolutionary new drive system - provided with GMN-freewheel-clutches.