Linear/Rotary Motion Components & Systems

August 2008

Multi-Rib Belt
The PolyVee belt driven roller and RollerDrive from Interroll (Wilmington, NC) provides reliable torque transmission up to 300 percent higher than traditional O-rings. Unlike other multirib belts, the PolyVee belt features a flexible core that allows it to be applied without any tensioning device. In addition, the PolyVee belt accepts center-to-center distance tolerances, without impairing performance, and quickly and accurately controls the starting and stopping of boxes on a conveyor.

The high torque PolyVee multi-rib belt has a new hub and belts with up to four ribs, minimizing belt slippage and providing superior torque transmission and long life cycle. It is suited for most conveying applications including roller curves, 24VDC pallet conveyors, long transport zones, and high speed applications.

For free info visit http://info.hotims.com/15136-308

August 2006

Anti-Backlash Nut
Haydon Switch & Instrument (Waterbury, CT) has released the “W” series of anti-backlash nuts, designed to minimize backlash between the leadscrew and nut interface. A blend of self-lubricating polyacetal and stainless steel screw material compensates for wear to avoid lock-ups. Available in a range of diameters and leads for applications requiring precise positioning, the nuts provide long operational life and a system that augments system stiffness while reducing drag torque. It can be used as a standalone product.

For Free Info Visit http://info.ims.ca/5786-315

June 2006

Conveyor System
The Quickdraw® conveyor system from MagStar Technologies (Hopkins, MN) is designed for lab and cleanroom environments. It stands 2-7/8" and is only 1-1/2" wider than the transport tray. It uses sealed ball bearings rather than belts. The unit allows for variable speed, bi-directional transport, changeable layouts, and precision stopping for tight-tolerance processing. Integrated sensors provide users with conveyor control within specific conveyor zones. The control system is self-contained with plug-and-go operation so no PLC is needed for setup or operation. Sensor, logic, and motor controls are built into the rail for easy access.

For Free Info Visit http://info.ims.ca/5659-335

Reciprocating Platform
Amacoil (Aston, PA) offers a reciprocating linear motion platform driven by a rolling ring drive that reciprocates automatically without requiring motor reversal. Designed for a PCB measurement/cleaning process, the assembly may also be used for scanning barcodes on parts and other applications requiring repetitive back-and-forth movement. Rolling ring bearings inside the drive assure a backlash-free motion. Smooth reversal is achieved with a modified reversal mechanism that dampens the reversal action, dissipating forward momentum at the reversal points.

Using a control knob on the assembly, adjustments to linear speed are possible on the fly, without changing motor speed or reducing gears. The device contains no hydraulics or pneumatics, and the linear drive requires lubrication once every three months. Speed and travel direction are controlled mechanically, eliminating the need for programming or electronics. Components are precision-machined to limit vertical and horizontal movement of the platform to within ±0.00". Length of travel may be increased or decreased via adjustable end stops.

For Free Info Visit http://info.ims.ca/5659-348

February 2006

Rodless Cylinders
The HORV Series of rodless cylinders from Humphrey Products (Kalamazoo, MI) have a flat piston that creates a profile that is 40% thinner than conventional rodless cylinders of equal bore and stroke. The block-type end cap eliminates the need for mounting brackets. The body places no loads on either the actuator axis or the stand. A sensor switch track uses a cap groove that allows the lead wires for embedded sensor switches to be drawn out from a single surface. The HORV Series features a high-strength stainless steel band instead of a plastic band, and is available with NPT ports and mounting options that include a shock absorber unit and F-tube supports.

For Free Info Visit http://info.ims.ca/5655-307

December 2005

Rotary Selector Valves
Beswick Engineering (Greenland, NH) offers a rotary selector valve that may be used as a replacement for solenoid valves. In the standard configuration, a single input can be switched among 2, 3, 4, 5, or 6 output ports. The valve is available with detents for manual operation with a knob, or without detents for automatic operation with a servo or stepper motor. The non-selected ports are vented to atmosphere. In an optional configuration with built-in check valves, 2, 3, 4, 5, or 6 input ports can be switched to a single output port. Outside diameter of the valve head is slightly over 1".

For Free Info Visit http://info.ims.ca/5294-322

October 2005

Linear Positioners
Dwyer Instruments (Michigan City, IN) offers the Series 165 Precisor® II pneumatic and electro-pneumatic positioners for harsh environments. The pre-calibrated instruments include transformation from direct action to reverse action, with the choice of linear or equal percentage valve flow characteristics. The positioners provide valve control when combined with Dwyer linear valve actuators.

For Free Info Visit http://info.ims.ca/5292-309

Solenoids
Saia-Burgess (Vandalia, OH) has introduced the B27 Series DC rugged, open-frame solenoids that measure 1.625 × 0.937 × 0.812" and provide up to 80 ounces of hold force at 20°C with intermittent duty forces up to 7 pounds. They feature a Class A coil for operation in applications with operating temperatures up to 105ºC. The solenoids provide an operating life of up to 100,000 cycles.

For Free Info Visit http://info.ims.ca/5292-313

June

Ball Screws
The BSS Series Ball Screws from NSK Precision America’s (Addison, IL) provide linear speeds up to 240 m/min. The nut design reduces maximum nut diameter by 30% when compared to conventional tub-type designs, making them compact and lighter in weight. The BSS Series may reduce noise levels of 6 dB over conventional ball screws. Vibration levels have also been reduced, resulting in smoother movement and less wear and tear.
For Free Info Visit http://info.ims.ca/5081-311