Texas Belting and Supply — PPI Products
From Pro Duty drum pulleys with an industry-exclusive 10-year warranty to CEMA-certified idler rolls, Texas Belting supplies the complete PPI conveyor component line for mining, aggregate, grain, and industrial applications across the nation.
Bulk Conveying
Drum conveyor pulleys cover every application from light aggregate to underground mine-duty. Profiled end disc engineering, keyless locking assemblies, and single-source pulley assembly services set PPI apart from conventional welded-hub designs.
Flagship
The only drum pulley on the market with a 10-year warranty. Profiled end discs machined from solid steel eliminate the most common failure point — the hub-to-end-disc weld. A single pulley line that replaces light aggregate through quarry-duty specifications.
High Tonnage Mining
Precision Finite Element Analysis engineering controls material stress points for efficient, high-tonnage mine operations. Incorporates proven PPI heavy mining pulley experience with world-class FEA design techniques for maximum reliability.
Custom Engineering
Custom-designed and fabricated for each pulley location and application. Built for large conveyors with high-modulus, high-tension belts requiring pulleys of substantially greater capacity and durability than standard units.
Heavy / Mine Duty
Steel rims, hubs, and end discs fused by continuous submerged arc welding for maximum strength, balance, and concentricity. Mine Duty (MDD) adds heavier rims and end discs for frequent starts/stops and demanding abrasion conditions.
Self-Cleaning
Vertical steel bars helically wound around an HDD pulley discharge foreign material to the side of the conveyor with every rotation. Provides a cleaning action without inducing belt vibration. Available crown or straight face.
Bearing Protection
Patented solution for pulley positions prone to frequent bearing failure. Bearings are mounted inside the pulley hub, shielded from contaminants by a taconite sealing system. Dramatically extends service life in harsh environments.
Maintenance Reduction
Allows fast, economical bearing and shaft replacement without removing the pulley from the conveyor structure. Engineered stub shafts eliminate the downtime associated with full pulley pull-outs.
Grain Industry
Continuously welded to the rim on both sides of the disc for heavy-duty grain elevator service. High-compression hub and bushing creates a one-piece all-steel single disc pulley that resists stress and deflection.
Specialty
Deflection Wheels handle corrugated sidewall belting transitions from horizontal to any incline angle. Paddle Wheels mount at the discharge point to agitate material as it leaves the belt, reducing stock pile segregation of fine vs. coarse particles.
Pro Duty Drum Pulleys are the only conveyor pulleys on the market backed by a 10-year warranty. Profiled end disc technology and integral machined hubs eliminate the hub-to-end-disc weld failure that accounts for the majority of conventional pulley field failures. Warranty covers the pulley body; lagging, shafting, and bearings are purchased separately.
Self-Cleaning Designs
Wing pulleys are the standard choice for tail, return, and dirty-belt positions where material carryback causes steel drum surface buildup and accelerated wear. PPI offers more wing pulley configurations than any other manufacturer — from light aggregate to the most severe quarry-duty applications.
Most Popular
Wing angles up to 45° use pulley rotation to actively eject material outward to the sides rather than allowing it to recirculate. Eliminates both excessive material lodging and wing folding that plague conventional wing designs. Also available in a CEMA-compliant version.
General Duty
Individual all-steel wings and gussets expel material buildup from the belt contact zone, enhancing traction and reducing abrasion on both the belt and pulley face. The foundational self-cleaning wing pulley for standard industrial conveyor applications.
Harsh Conditions
Extra-heavy-duty construction minimizes metal fatigue and enhances reliability in the most demanding applications. Provides effective self-cleaning while reducing the risk of component failure in highly abrasive underground and open-pit mine conditions.
Noise Reduction
Flat bar wound spirally from center to ends creates continuous belt contact that eliminates the impact noise and vibration typical of gap-style wing pulleys. Still cleans effectively while providing a debris escape path that prevents material entrapment.
Extreme Abrasion
Massive contact bars, thick wings, and optional end discs prevent wing folding in severe quarry environments. Wing height is precisely engineered — short enough to resist folding, long enough to provide adequate rigidity under extreme loading conditions.
Grain Industry
More wings than standard designs support thin grain belting without damage. Rubber flappers lift grain particles and return them to the belt in enclosed conveyors, combining improved wear, quieter operation, and gentle grain handling in one unit.
Grain — Sensor-Ready
Patented design combines all Grain Herringbone Wing advantages with an integrated sensor ring compatible with proximity or heat sensors. Enables conveyor monitoring at the boot pulley position without additional sensor mounting hardware.
Maximum Wear Life
Chromium carbide replaces traditional mild steel or AR alloys on the contact face of wing pulleys through proprietary manufacturing processes. Delivers dramatic service life extensions in high-abrasion applications, reducing costly maintenance intervals and unplanned downtime.
Traction & Belt Protection
PPI performs all pulley lagging in-house, maintaining complete quality control from raw rubber through finished lagged assembly. Standard compound is 60 durometer SBR; 50 and 70 durometer, neoprene, MSHA-approved, ceramic, and specialty compounds are available. Groove style is selected by drive position, wet/dry conditions, and belt travel direction.
HBG
Standard drive pulley lagging with V pointing in the direction of rotation for maximum traction. Min. 3/8" thickness.
CHE
Similar to herringbone; selected based on customer preference for drive pulley applications. Min. 3/8" thickness.
DIA
Double HBG / double chevron pattern for reversing drive pulleys or universal spare pulleys where rotation direction is unknown. Min. 3/8".
CIR
Used on non-drive pulleys in wet applications or cold-temperature environments; allows lagging to deflect and shed material buildup. Min. 3/8".
LOR
Angled grooves machined into flat-face lagging compress against the belt to produce a centering training action. Standard 3/4" thickness.
CER
Ceramic tiles molded into rubber compound for excellent traction, reduced slippage, and superior abrasion resistance in high-tension and wet applications.
VEC
Patented. SBR or neoprene hot-vulcanized onto the pulley, then proprietary tiles embedded in the vulcanized layer. Eliminates seams where failures initiate.
CRAFT-LAG® / EZ LAG
Bonded to rigid backing and formed to a specific diameter. Used with or without retainers. Ideal for mining, cement, food processing, power plants, and general industry.
FAS-LAG®
Welded to flat wing contact bar for additional traction and protection of mechanical splices. Standard 60 durometer SBR. Custom compounds and colors available.
XHD FAS-LAG®
Designed for Quarry Max Duty Wing pulleys. 2" wide × 1" thick extended-life lagging welded to the flat contact bar. Standard 60 durometer SBR.
Texas Belting supplies complete pulley assemblies with lagging, shafting, pillow block bearings, and take-up frames as a single-source package. Specify your application and we'll configure the right assembly.
Belt Tensioning
Proper belt tension is fundamental to conveyor performance and belt life. PPI take-up frames eliminate additional support structures and distribute loads evenly across the conveyor frame, from light duty screw take-ups to heavy-duty hydraulic systems for long overland conveyors.
CEMA B — F Rated
PPI's full idler line meets or exceeds CEMA requirements for load, life, and dimensions across all series from B through F. Engineered for long, grease-free service life with multiple roll material options for every operating environment.
Standard Carry
Available in CEMA B, C, D, E, and F series. The backbone of any bulk material conveyor system, designed and manufactured for long, trouble-free life without lubrication.
Loading Zone
Heavy-duty frames built specifically to withstand the shock loads at the conveyor loading zone where falling material creates the highest stress on idler components.
Belt Training
Frame mounted on a separate base with tapered roller bearings, free to swivel within controlled limits. Side guide rolls accommodate unidirectional or reversing belt travel.
Picking Conveyors
Offset roll geometry for special conveyors where product must be spread over a flat belt with sides turned up to prevent spillage during manual inspection or sorting operations.
Belt Transition
Provides smooth transition from flat belt to troughed configuration or vice versa. Critical for extending belt life and reducing stress in the transition zone between head/tail pulleys and the troughing section.
Polymer
High Density Polyethylene rolls with PPI's field-proven seal system. Outstanding contamination resistance extends roll life in wet, corrosive, and abrasive environments where steel rolls deteriorate rapidly.
Spinweld HDPE & Nylon
Significant weight reduction versus steel equivalents. Excellent corrosion resistance, wear and abrasion characteristics, and reduced noise levels. Nylon version offers additional stiffness for longer spans.
Tight Spaces
Between-frame mounting for applications where vertical clearance is minimal. Available in CEMA B (14"–48") and CEMA C (24"–60") with 4" and 5" diameter rolls.
Quick Changeout
Excellent choice for impact zones where frequent roll change-out is required. The retractable frame design dramatically reduces the time and labor needed to swap rolls in service.
Weight Reduction
Heavy-wall tube construction with PPI's proven seal design reduces maintenance weight while maintaining CEMA load ratings. Eases handling during installation and routine roll replacement.
Grain Protection
Offset center roll design eliminates the pinch point that damages lightweight grain belting. Protects the most expensive component of grain conveyor systems during high-volume seasonal operation.
Loading Zone Access
Enables easy roll access in congested loading zones where traditional fixed-frame idlers are difficult to service. Pivoting bracket allows roll removal without disturbing the conveyor structure.
Return Side & Belt Training
Belt tracking is critical to maintaining both the belt and conveyor structure. Not all belt-tracking issues respond to the same solution, which is why PPI offers a comprehensive range of return, flat carrier, rubber disc, and active belt-training idlers to address specific application requirements.
Standard
Constructed to the same specifications as troughing idlers with support bracket strength equal to or greater than the idler load rating.
Sticky Material
Abrasion-resistant synthetic rubber discs with compression fit resist material buildup that clogs traditional steel rolls in high-moisture or sticky-material applications.
Enhanced Shedding
Improves on rubber disc return roll material-shedding characteristics and wear properties. The grooved profile provides an improved path for carryback material to escape.
Impact Return
Rubber discs mounted on a solid steel shaft with pillow block bearings at the turn-down ends. Absorbs impact on the return strand in heavy loading applications.
Belt Cleaning
Vibratory belt cleaning action knocks material carryback from the belt return strand, reducing buildup on downstream components and extending belt life.
Return Training
Two-piece frame with tapered roller bearings, free to swivel. Side guide rolls mount on either side for unidirectional or reversing belt travel.
Reversing Belts
Standard self-aligners fail on reversing belts. PPI's reversible design uses slider plate or guide roller actuators that steer the belt back to center regardless of travel direction.
Return Side
Operates on the clean side of the belt to eliminate material-buildup interference. Adjustable displacement increases tracking force as needed. Positively tracks the return strand.
Gravity Centering
10° two-roll trough configuration uses gravity to naturally center the belt. Available in 4.5" and 7" drop heights. Shorter two-roll design allows use of significantly lighter rolls.
Clean-Side Trainer
Active belt training on the clean side eliminates carryback interference that negates traditional return self-aligner performance. The lagged Pro Tracker pivots to guide the belt to center with continuous engagement.
Loading Zone Protection
The loading zone is the highest-stress point on any conveyor belt. PPI impact beds protect the belt from impact damage while supporting skirting systems to control dust and spillage. Available in configurations from light-duty rubber disc beds to heavy-duty welded-steel impact beds with UHMW slider rails.
Full-Featured
Five-foot welded steel bed with PPI's proven impact rolls and a cushioned center support system creating a double-action dampening effect. Fits D6 and E7 rolls. A low-profile version (TISL) aligns with C5/D5 or E6. Slider rails are 1/2" UHMW. Also available as a Channel Impact System (CIS).
Modular Design
Cost-effective modular impact bed available in 2-foot, 4-foot, and 5-foot sections with foldable wings. Combines impact absorption and belt support while promoting a tight skirt board seal. Configure to the exact loading zone length needed.
3 Configurations
Three models for different loading zone needs: EZI with rubber disc rolls for light-to-medium impact absorption; EZS with steel center rolls for load support beyond the impact zone; EZR as a light-duty continuous slider bed. All include wing-position rails for skirt board sealing.
Self-Cleaning
Springs form a continuous trough with no roll gaps, providing total belt contact as materials are loaded. The durable self-cleaning spring absorbs impact and is flexible enough to install in tight, congested impact areas where rigid frames cannot fit.
Predictive Maintenance & Retrofits
Smart conveyor monitoring prevents catastrophic failures before they occur. PPI's monitoring products integrate with PLCs and automation systems for motor shutdown control and predictive maintenance reporting. Retro Rolls® let you upgrade roll quality without replacing existing frames.
Patented PPI idler roll with an internal proximity sensor that generates an electronic pulse stream to monitor belt speed. Integrates with PLC or PPI Smart Monitor to control motor shutdown and prevent material overflow onto a stopped conveyor.
Snap-on magnetic coupling eliminates the conventional drill-and-tap installation method. Magnetic attachment also allows the sensor to break away from the shaft if struck by debris, protecting the device from damage. Simply snap, wire, and go.
Single-pole, double-throw timer relay with field-adjustable trigger designed to monitor pulse streams from devices like the PPI Magnetic Speed Switch. Provides continuously open or closed relay output for integration with conveyor control circuits.
PPI idler rolls factory-integrated with Vayeron Smart-Idler technology for predictive failure reporting. Monitors idler health in real time and delivers alerts before failure occurs — reducing reactive maintenance and unplanned conveyor shutdowns.
Drop-in PPI idler roll replacements engineered to fit other manufacturers' frames. Upgrade to PPI's proven seal design and bearing quality without purchasing new frames — protecting your capital investment while improving roll service life.
Food Processing & Sanitary Applications
PPI is a premier manufacturer of stainless steel conveyor components for food processing and unit handling industries. With deep knowledge of USDA and FDA requirements, PPI builds complete stainless drum and wing pulley lines, custom stainless machining, and fabrication in UHMW, Acetal, and Ertalyte plastic materials.
Food Grade
Complete line of stainless steel conveyor pulleys for food processing, pharmaceutical, and sanitary applications. USDA and FDA compliant materials and design for wet-wash environments.
Sanitary Mounting
All stainless steel sanitary design approved for food production applications. Available in a wide variety of standard sizes and lengths with load capacities up to 28,000 lb.
Controlled Quality
PPI manufactures its own stainless hubs and bushings, controlling raw material quality and machining tolerances in-house. Available in XT®, QD®, and Taper-Lock® styles.
Plastic Fabrication
Custom forming, welding, and machining services in engineering-grade plastics alongside stainless steel capabilities for complete sanitary conveyor component packages.
Texas Belting supplies PPI conveyor components to maintenance managers and reliability engineers across every bulk material handling industry.
Pulley Assembly Components
A complete pulley assembly is only as reliable as the components that connect it to the drive train. We supply matching hubs, bushings, bearings, and shafting to complete any pulley order as a fully assembled package.
| Component | Types Available | Key Specification |
|---|---|---|
| XT® Hubs & Bushings | Standard XT style | Maximum bore 12" |
| QD® Hubs & Bushings | Quick disconnect style | Maximum bore 12" |
| Keyless Locking Assemblies | RBL and equivalent | Up to 23.622" bore; common on high-tension steel cable systems |
| Conveyor Shafting | T&P (turned and polished), hot rolled, forged | AISI 1045 standard; T&P through 5-15/16", hot rolled/forged above 6" |
| Type E Pillow Block Bearings | Double-row spherical | ±2° misalignment; double lip nitrile contact seal |
| SAF / SDAF / SN / SD Pillow Blocks | Adapter mount heavy duty | Cast iron, ductile iron, or cast steel housing; multiple seal options |
| SCM Ball Bearing Pillow Blocks | Economy ball bearing | Nitrile contact seal; cost-effective for lower-load applications |
Common Questions
Technical questions about conveyor pulleys and idlers answered by Texas Belting's application experts.
Drum pulleys have a solid cylindrical face and are used for drive, head, tail, and snub positions where maximum surface contact is needed. Wing pulleys have an open design with individual steel wings that self-clean by expelling material buildup outward, making them the preferred choice for dirty return and tail positions where material carryback on the belt would otherwise accumulate on a solid-face drum and cause belt mistracking or wear.
For most drive pulleys, herringbone groove (HBG) lagging is the standard recommendation — the V pattern points in the direction of rotation, maximizing traction and shedding water. For reversing drive pulleys, diamond groove (DIA) is required since both rotation directions need to be accommodated. In very wet conditions or cold climates, ceramic lagging or VEC lagging offers the highest traction coefficient and longest life. If field replaceability is a priority, Craft-Lag or EZ Lag strip systems allow rubber replacement without removing the pulley from the conveyor.
We supply PPI idlers in CEMA B through F series, covering belt widths from 14 inches through 60 inches in standard configurations. CEMA B and C are the most common for aggregate and general industry; CEMA D and E handle heavier mining and port applications; CEMA F covers the heaviest bulk terminal and overland systems. For belt widths above 60 inches, contact us for application assistance.
The Pro Duty warranty covers the pulley body (rim, end discs, and integral hub) for 10 years from the date of installation. It does not cover lagging, shafting, or bearings, which are considered wear items or separate assemblies. Pro Duty pulleys are only available with XT® bushings or keyless locking assemblies — they are not available with conventional tapered bushings.
Impact troughing idlers are suitable for light-to-moderate loading with relatively small lump sizes. For heavy impact loads, large lump sizes, or high drop heights, a dedicated impact bed (TIS, Medium Duty, or EZ Slider) is strongly preferred. Impact beds distribute the load over a much larger area, absorb energy through their cushioning systems, and simultaneously support the skirt board sealing system to control dust — something discrete impact idlers cannot do as effectively.
Belt tracking problems are often caused by misaligned structure, worn return rolls with material buildup, or carry-side loading issues before anything else — so a structural inspection is always the first step. If the belt drifts consistently in one direction, self-aligning troughing idlers (TESA) on the carry side or self-aligning return idlers (RSA) on the return side are the standard first solution. If the belt also reverses direction, standard self-aligners won't work and PPI's Reversible Self-Aligning Idler is required. For belts that drift due to carryback buildup on return rolls, Pro Trainer or Pro Tracker — which operate on the clean side of the belt — eliminate that variable entirely.
Yes. Texas Belting can supply complete PPI pulley assemblies including the pulley body, your choice of lagging, AISI 1045 shafting, pillow block bearings, and take-up frames as a single packaged order. Backstops and couplings can also be included upon request. Providing a single source for the complete assembly ensures all components are matched, properly sized, and ready to install together.
Texas Belting and Supply — Houston, TX. Stocking distributor for PPI Products conveyor components. Fast quotes, nationwide shipping.
PPI Products (Precision Pulley and Idler) is a USA-based manufacturer of the complete line of conveyor pulleys, idlers, and conveyor components. Their product line spans from basic light-duty drum pulleys to custom-engineered Turbine and Engineered Class pulleys for the most demanding overland, underground, and port conveyor systems in the world.
Texas Belting and Supply is a stocking distributor for PPI Products, serving maintenance managers, reliability engineers, and plant managers across Texas and nationwide. Our team has deep application knowledge to help you select the right pulley design, lagging style, idler class, and belt tracking solution for your specific conveyor.
Whether you're replacing a failed return pulley in an aggregate quarry, upgrading impact beds in a coal loading facility, or outfitting a new grain elevator boot section, Texas Belting has the PPI components you need — stocked or sourced fast.
Pulley selection begins with the application: belt width, belt tension, shaft size, bushing preference, face width, lagging requirements, and operating environment (wet, abrasive, high-temperature, food-grade). For drive pulleys, the Pro Duty drum with herringbone groove lagging covers the majority of industrial and aggregate applications. For positions with significant material carryback — particularly tail and return pulleys — wing pulley designs like the Herringbone Wing or Heavy Duty Wing are strongly preferred over drum pulleys.
For high-tension, high-tonnage, or custom conveyor systems, PPI's Engineered Class and Turbine pulleys provide application-specific design using Finite Element Analysis to match the pulley precisely to the loads at each position in the system.
Contact Texas Belting with your conveyor specifications and we will recommend the correct PPI product configuration, provide a quote, and ship from our Houston location or direct from PPI.
