IMC Servo-Mechanical Drives combine the flexibility of a servomotor with the accuracy and reliability of a camdriven index drive. They can are ideal for dial, conveyor, or linkage applications. The drives are offered in several configurations

• The Flex-i-Dex drive is a dedicated Servo-Mechanical package complete with servomotor and amplifier ideal for light duty applications or short, fast movements.
• Constant Lead cam drives are standard RDM or Heavy Duty E-Series drives with constant lead (constant ratio) cams. Supplied with or without a reducer and servomotor package, they offer a large mounting surface, bearing support and thru-hole. Supply your own servo package or use ours.

The Servo-Mechanical Drive is a zero-backlash, high-efficiency, long-life, low-maintenance precision rotary actuator. The actuator consists of an IMC indexer with a constant ratio cam and a servomotor. A secondary reducer may be added for applications requiring a very slow movement, extra mechanical advantage or motor inertia matching. The Servo-Mechanical Drive features:

• Large Output Flange and Bearing with metric or imperial tapped holes for fastening the load.
• Large Center Hole for a stationary center post or to run air, hydraulic or electric lines.
• Output shaft with precision cam followers meshes with a hardened and ground cam. The cam is made with a fixed ratio from 2:1 to 24:1. Low ratios are recommended for large angular movements while high ratios are used for small, fast movements.
• Zero Backlash is produced by preloading the cam followers against the cam surface.
• High Efficiency due to cam followers rolling (not sliding) on the cam while submerged in oil.
• Clamped or dowel-pinned joints eliminate backlash caused by worn keys. Keys are used for timing and assembly purposes only.
• Servomotor mounted directly to the camshaft. The motor shaft is inserted into the hollow bore of the split camshaft. A locking clamp collar joins the motor shaft to the camshaft.
• Secondary reducers have minimum backlash and NEMA or IEC frames for mounting the servomotor.

The Servo-Mechanical Drive is the ideal unit for applications where flexibility, electronic synchronization, digital communication and high accuracy and repeatability are needed.

The Flex-i-Dex is ideal for light duty applications or short, fast movements. The complete Flex-i-Dex package includes:

For heavier applications IMC has complete package solutions using the RDM Series or E-Series Drives with constant lead (constant ratio) cams. These are available as a complete solution including the servo package or as the mechanical platform only.

Complete Package
IMC can provide a complete servo-driven solution consisting of the mechanical assembly, servomotor and controller. All IMC complete packages are supplied with Control Techniques Servo Motors (up to 14.57 hp or 10.87 kW), Uni-Drive SP controller, power and logic cables and Power Tools software as standard.

Basic Mechanical Platform
The mechanical platform uses the RDM or E-Series cam-operated drive alone or with a reducer. You can use your preferred servomotor, amplifier and controller to drive the unit. An IMC sales or applications engineer can size and select the right cam drive for your application.