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Excavator Starter Motor Ring Gear 3905427 Flywheel Ring For Cummins 4B 6B Engine

Excavator Starter Motor Ring Gear 3905427 Flywheel Ring For Cummins 4B 6B Engine

  • High Light

    Excavator Starter Motor Ring Gear


    Cummins Engine Starter Motor Ring Gear



  • Part No
  • Model
    4B / 6B
  • Part Name
    Flywheel Ring Gear
  • Engine Type
  • Weight
  • Appliion
  • Material
    Cast Steel
  • Cummins Engine
    Cummins 4b Engine
  • Place of Origin
  • Brand Name
  • Model Number
    4B / 6B
  • Minimum Order Quantity
  • Price
  • Packaging Details
  • Delivery Time
    5-8 working days
  • Payment Terms
    T/T, D/P, Western Union, MoneyGram
  • Supply Ability

Excavator Starter Motor Ring Gear 3905427 Flywheel Ring For Cummins 4B 6B Engine

3905427 Flywheel Ring Gear Ring For Cummins 4B / 6B Engine Excavator Part



Type Flywheel Ring Gear
Model 4B / 6B
Part No 3905427
Standard Component Standard Component
Technics Casting
Specifiion Cummins
Condition New
Driving System Parts Wheel
Package Neutral packing
Steering System Parts Steering Gear


Flywheels are often used to provide continuous power output in systems where the energy source is not continuous. For example, a flywheel is used to smooth fast angular velocity fluctuations of the crankshaft in a reciproing engine. In this case, a crankshaft flywheel stores energy when torque is exerted on it by a firing piston, and returns it to the piston to compress a fresh charge of air and fuel. Another example is the friction motor which powers devices such as toy cars. In unstressed and inexpensive cases, to save on cost, the bulk of the mass of the flywheel is toward the rim of the wheel. Pushing the mass away from the axis of rotation heightens rotational inertia for a given total mass.




1.A flywheel may also be used to supply intermittent pulses of energy at power levels that exceed the abilities of its energy source. This is achieved by accumulating energy in the flywheel over a period of time, at a rate that is compatible with the energy source, and then releasing energy at a much higher rate over a relatively short time when it is needed. For example, flywheels are used in power hammers and riveting machines.

2.Flywheels can be used to control direction and oppose unwanted motions. Flywheels in this context have a wide range of appliions from gyroscopes for instrumentation to ship stability and satellite stabilization (reaction wheel), to keep a toy spin spinning (friction motor), to stabilize magnetically levitated objects (Spin-stabilized magnetic levitation)

3.Flywheels may also be used as an electric compensator, like a synchronous compensator, that can either produce or sink reactive power but would not affect the real power. The purposes for that appliion are to improve the power factor of the system or adjust the grid voltage. Typically, the flywheels used in this field are similar in structure and installation as the synchronous motor (but it is called synchronous compensator or synchronous condenser in this context). There are also some other kinds of compensator using flywheels, like the single phase induction machine. But the basic ideas here are the same, the flywheels are controlled to spin exactly at the frequency which you want to compensate. For a synchronous compensator, you also need to keep the voltage of rotor and stator in phase, which is the same as keeping the magnetic field of rotor and the total magnetic field in phase (in the rotating frame reference).


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Excavator Starter Motor Ring Gear 3905427 Flywheel Ring For Cummins 4B 6B Engine 0Excavator Starter Motor Ring Gear 3905427 Flywheel Ring For Cummins 4B 6B Engine 1