Bell Crank Lever Apparatus
(SM - 006)

1 Bell Crank Lever Horizontal Arm 2 Bell Crank Lever Vertical Arm 3 Load Hangers 4 Calibrated Weights 5 Screw for adjusting Tension 6 Spring balance 7 Hinged Support 8 Five Loading Rings 9 Base

  • To determine by experiment the reaction force of a bell-crank lever to an applied load.
  • To confirm the effect of leverage ratio.
  • To compare with calculation by taking moments about the pivot.
  • weights
    • 1x 2N
    • 1x 3N
    • 1x 4N
  • spring balance
    • range: 0.... 25 N
  • Bell Crank Lever Apparatus (SM - 006)
  • Hard copy user manual

The bell crank lever trainer is designed to determine the reaction force of a bell-crank lever to an applied load. The bell crank lever enables the reaction force of a 90° bell crank to be measured by a spring balance when a load is applied at any of five leverage ratios.

                                     
  • A sturdy aluminum base frame supports a vertical pillar onto which pivots the bell crank lever.
  • The bell crank lever contains five loadings rings into which the load hanger can be fitted to vary the mechanical advantage of the system.
  • A spring balance is supported horizontally at the base of the bell crank lever, and has an adjustable mechanism to enable the datum position to be returned.
  • A set of calibrated weights is supplied with the unit along with a comprehensive instruction manual.