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Precision Pulley and Idler

Pulleys

Drums

"HDD" HEAVY DUTY DRUM CONVEYOR PULLEY
The toughest conveyor applications require ruggedness offered by a Precision® "HDD" Heavy Duty Drum Pulley. Steel rims, hubs and discs are fused into an integral component by a continuous submerged arc welded bond that maximizes pulley strength, balance and concentricity. The use of internal discs, plus heavier than standard construction reduces radial deformation of the rim and longitudinal deflection of the rim and shaft. The "HDD" pulley is available in standard face widths from 12" to 66" and standard diameters from 10" to 60" - intermediate sizes are available upon request. Available with various hub and bushing systems.

MINE DUTY DRUM CONVEYOR PULLEY
Precision® Mine Duty Drum Pulleys were originally designed for the rugged environment of underground coal mining. Their ultra heavy duty rigid construction has been proven in the toughest conveyor applications. The "good as the shaft" design of Precision Mine Duty Drum Pulleys make them particularly useful for spares or replacement pulleys in critical positions. The Precision Mine Duty Pulleys are available in diameters from 10" to 60" and face widths from 20" to 66". Available with various hub and bushing systems.

SSP (Static Shaft Pulley) Patent Pending.

  • Standard Product Line - Modular design; standard 22200 series bearing
  • Premium Greasing System - Grease while running
  • Saves Money - More cost effective than conventional pulleys
  • Higher Reliability - Hub to disc failure eliminated - longer life
  • Higher Running Loads - 20% higher than CEMA
  • 3 year Warranty
  • Available in shaft sizes from 3 15/16" through 12 inch shaft diameter AND beyond.
  • Available from 12 through 60 inch diameter and 12 through 66 inch face width
  • Other sizes available upon request

ENGINEERED CLASS PULLEY
Bulk handling systems are moving to larger conveyors and increased capacities. The high modules, high tension belts require pulleys of much higher capacity and durability than standard units. Precision® Engineered Class Pulleys are supplied with various hub and bushing systems including keyless locking devices used on profiled and cast disc designed pulleys, which are prevalent on high tension steel cable belt systems.

TURBINE PULLEY
Today's efficient high tonnage mines demand dependable long life components. Using state-of-the-art engineering and design techniques, Precision® meets these needs by controlling material stress points. Incorporating all of the benefits of Precision's proven experience in heavy mining pulleys, the turbine offers our customers world class performance.


Speciality Drums

EZ MOUNT PULLEY SYSTEM
This unique pulley and shaft arrangement allows for fast, safe, and economical bearing and shaft replacement without removing the pulley from the conveyor. It reduces maintenance time, downtime, and scrap loss by using rugged engineered stub shafts. The pulley and shaft system is manufactured to CEMA standards and Mine Duty specifications.

SPIRAL DRUM CONVEYOR PULLEY
The Precision® Spiral Drum Pulley is formed by a pair of vertical steel bars helically wound around a Precision "HDD" Heavy Duty Drum Pulley. This unique design reduces buildup between the belt and the pulley while providing continuous belt contact for applications where wing pulleys cannot be used. Rotation of the pulley automatically starts the cleaning action, discharging foreign material to the side of the conveyor. Available in crown or straight face - sizes 12" thru 24" diameter and supplied with various hub and bushing systems.

DUAL DRUM CONVEYOR PULLEY
The Precision® Dual Drum Pulley has proven in material handling installations where belts create excessive loads which cause excessive shaft deflection and premature pulley failure of Heavy Duty Drums or Mine Duty Drums. Designed to decrease shaft slope at the hubs, decrease stress at all end disc weld locations, and eliminate pre-stressing of end discs during assembly with tapered type hubs.

"SDE" SINGLE DISC ELEVATOR PULLEY
Superior strength best characterizes the Precision® "SDE" Single Disc Elevator Pulley. Used primarily in the grain industry, the "SDE" Single Disc Elevator Pulley, with continuous weld on the disc to the rim on both sides of the disc, coupled with heavy duty construction and a high compression hub and bushing affords a one-piece all steel, single disc pulley capable of reducing stress and deflection. The "SDE" Pulley is constructed with a standard crown face unless otherwise specified. Standard diameters range from 16" thru 42" and standard face widths 8" thru 16".

DEFLECTION WHEELS
Precision® Deflection Wheels are designed for the deflection of corrugated side wall belting. Cross-rigidized base belting with corrugated sidewalls can be deflected from horizontal to any incline and back again with Precision Deflection Wheels. Please contact the factory for size range and availability.


Wings

"HDW" HEAVY DUTY WING CONVEYOR PULLEY
Pulley and belt life is extended by the self-cleaning action employed by the Precision® "HDW" Heavy Duty Wing Pulley. Individual all-steel wings and gussets expel excessive build up of material from the area of belt contact which enhances traction and reduces abrasion of both belt and pulley. Where abrasion and excessive build up conditions exist, the "HDW" Heavy Duty Wing with self-cleaning action provides an excellent alternative to conventional drum style pulleys. Available in standard diameters 8" to 36" and standard face widths from 12" to 66" and supplied with various hub and bushing systems.

"XHDW" EXTRA HEAVY DUTY WING CONVEYOR PULLEY
Demanding wing pulley applications call for Precision® "XHDW" Extra Heavy Duty Wing Pulleys. Designed after the "HDW" Heavy Duty Wing Pulley, Extra Heavy Duty Wing Pulleys feature the same self-cleaning action that reduces excessive material build up. The extra heavy duty construction reduces the possibility of metal fatigue and enhances the dependability of the Precision "XHDW" Pulley. A 3/4" x 3/4" reinforcement ring is used on all "XHDW" Pulleys. Available with various hub and bushing system.

QUARRY MAX DUTY WING CONVEYOR PULLEY
Demanding wing pulley applications call for Precision® "QMW" Quarry Max Wing Pulleys. Designed after the "XHDW" Xtra Heavy Duty Wing Pulley, Quarry Max Wing Pulleys feature the same self-cleaning action that reduces excessive material build up. The quarry duty construction utilizes a Mine Duty End Disc upon which we build a Max duty wing pulley. The Mine Duty end disc does two things. First it moves the wings away from the higher stress area near the hub, and second, it reduces the amount of debris that is "kicked up" by a wing pulley. This reduces the possibility of metal fatigue and enhances the dependability of the Precision "QMW" Pulley. It comes standard with ½" wings, and a heavy contact bar with ¾" wings, which accommodates our XHD Faslag. Available with various hub and bushing system.

SSP QUARRY MAX DUTY WING CONVEYOR PULLEY
For the MAXIMUM in durability and life, the SSP QUARRY MAX is the answer. It comes standard with ½" wings, and a heavy contact bar with ¾" wings, which accommodates our XHD Faslag shown in the picture. With the latest in LXT designs, the SSP Quarry Max Wing pulley will cost less and last longer!!!

SPIRAL WING CONVEYOR PULLEY
The Precision® Spiral Wing Pulley is formed by flat bar helically wound towards one another, welded to all steel wings, with intervals between them to allow excess material to discharge to the side of the conveyor. Although similar to a standard wing pulley, this design permits continuous pulley contact with the belt during rotation which eliminates excessive noise and vibration without sacrificing self-cleaning action. Available with various hub and bushing systems.


Unit Handling Pulleys & Rollers

Pulleys and rollers used in Unit Handling applications typically have a diameter range of 2" through 8", although larger diameters are occasionally required.

For moderate loads, 7 through 14 gauge tubing can provide strong construction with economical pricing. For heavier loads 3/16" through 3/8" thick wall tubing is available.

Because manufacturers' designs vary, Precision offers a variety of shaft attachment methods as standard options:

Type A: Plain bore without hub

Type B: Seal ball bearing cartridge with
set screw lock

Type C: Detachable tapered bushing

Type D: Finished fixed bore hub with
standard keyseat

V-GROOVE PULLEYS
For applications where belt tracking requires a V-guide, either single or double V-grooves are available in the surface of the pulley.


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