Uploaded on Oct 27, 2026
Belts with cogs underside thereby reducing the bending resistance of the belts and allowing them to operate on pulleys with approximately 20% smaller diameters. The decreased bending resistance reduces mechanical efficiency and reduced working temperature. Heat dissipation is further improved by the larger area between the belt and the surrounding atmosphere and also by the air turbulence around the cogs during operation. These belts require a higher tension than the wrapped belts so as to exhibit higher power transmission capacity.
Cobrel-Belts-and-Pulleys-for-South-African-Industry
POWER TRANSMISSION · SOUTH AFRICA
Cobrel: Belts &
Pulleys for South
African Industry
A complete single-source drive inventory
built for mining, manufacturing, agriculture,
and processing plants nationwide.
7 100% 24/7
Belt families Matched pulleys Plant support
One supplier for every drive
Leading South African supplier of V-belts, pulleys, poly V-belts, variable speed belts, timing belts, conveyor belts and flat belts.
SINGLE-SOURCE ADVANTAGE
7 Classical & Deep Wedge & Banded V-BeltsMetric V-Belts Double Section Eliminates belt whip,
Everyday industrial High-torque drives, rollover, and turnover
Complete belt families held pump, fan, and standard severe shocks, and dual- on pulsating loads.
in stock for immediate mechanical drives. pulley serpentine layouts.
dispatch across South Africa.
Rubber Timing Poly V & Conveyor,
Belts Variable Speed Round & Flat
Positive, slip-free Compact high-speed Continuous product
Zero mismatched sets · Reduced downtime · synchronised power serpentine runs and on- transport, packaging
Direct technical engineering support without lubrication. the-fly ratio adjustment. lines, and sorting plants.
Classical and metric V-belts cover the everyday drives
Standardised cross-sections engineered for everyday industrial pumps, ventilation fans, and factory power transmission.
ISO / BS / DIN MOULDED COG
Classical Wrapped V-Belts Classical Raw Edge Cogged
Fabric-wrapped jacket resists Precision-moulded teeth allow
abrasive dust, oil splash, and tight bending around smaller
ambient heat across standard pulleys with superior heat
dissipation and reduced power
A, B, C, and D cross-sections. loss.
HIGH CAPACITY PREMIUM EFFICIENCY
Metric Wrapped Wedge Metric Raw Edge Cogged
SPZ, SPA, SPB, and SPC narrow XPZ, XPA, XPB, and XPC belts
profiles transmit up to three offer maximum grip, high flex
times the horsepower of classical rate, and cooler operation on
profiles in the same space. compact, high-speed industrial
drives.
Deep wedge and double section V-belts handle
heavier duty
Engineered for extreme shock loads in mining, quarrying, agricultural machinery, and reverse-bend serpentine drives.
RMA / NARROW WEDGE EXTREME FLEX DUAL-SIDED DRIVE
3V · 5V · 8V 3VX · 5VX AA · BB · CC
Deep Wedge Wrapped Deep Wedge Cogged Double Section (Hexagonal)
Deep wedge geometry provides Raw edge design prevents slippage Symmetrical dual-V profile drives
greater contact area against sheave and thermal buildup on high-ratio pulleys from both the top and
grooves, distributing tension evenly drives, allowing compact sheave bottom faces simultaneously in
under heavy crushing loads. diameters without cracking. complex serpentine paths.
Heavy compressors, chippers, Agricultural harvesters, textile
Mining screens, ball mills, rock crushers industrial blowers machinery, grain handlers
Banded V-belts keep multi-belt drives together
A reinforced fabric tie-band unites individual belts into a single cohesive set, eliminating turnover on severe pulsating drives.
CONTINUOUS SHOCK RESISTANCE
Wrapped Banded V-Belts
Constructed with heavy-duty fabric wrap over classical or wedge
strands. Ideal for vibrating screens, jaw crushers, and diesel-driven
pumps where pulsating torque causes separate belts to jump grooves.
Profiles: Classical (RA, RB, RC, RD) and Wedge (RSPB, RSPC, R9J, R15J)
HIGH-SPEED PULSATION
Cogged Banded V-Belts
Combines moulded cogs with a permanent tie-band. Delivers superior
flexibility around smaller high-speed drive sheaves while locking
every strand into perfect lateral alignment under sudden shock loads.
Profiles: 3VX, 5VX, RXPZ, RXPA, RXPB configurations
Rubber timing belts for precise, synchronised motion
Positive meshing teeth eliminate slippage, speed variation, and maintenance greasing across automation and process lines.
PRECISION MOTION TRAPEZOIDAL TEETH CURVILINEAR PROFILE
High mechanical Imperial Pitch (MXL, XL, L, H, XHH)TD Curvilinear (3M, 5M, 8M, 14M)
efficiency without tension
slip or chain lubrication. Traditional timing pitch for machine
Deep round tooth profile distributes stress
tools, paper handling, and established across the groove to prevent tooth shear
factory conveyor positioning drives. under high-torque acceleration.
QUIET ENGAGEMENT DIN STANDARD
STD & RPP High Torque Metric Pitch (T & AT Series)
Modified parabolic tooth profile guarantees T2.5, T5, T10, AT5, and AT10 tooth forms
98%+ ultra-quiet running, smoother engagement, engineered for precision indexing, and minimal tooth wear at high speeds. automated packaging, and CNC systems.
Drive power efficiency
Specialist timing belts solve the unusual jobs
Tailored tooth profiles, specialized backings, and high-tensile cords built for unique processing challenges.
REVERSE TIMING LINEAR MOTION
Double Sided Timing Open-End Roll Belts
Teeth on both faces provide Supplied in continuous roll
synchronous multi-shaft drive rotation lengths for reciprocating
in opposing directions simultaneously.
linear actuators, automated
gantry systems, and lift doors.
FRICTION BACKING EXTREME TENSILE
Linatex & Top Coatings Carbon & Roller Mill
Vulcanised natural rubber, PU, Carbon fiber cords prevent elongation
or sponge backings deliver in heavy grain milling, outlasting steel
cables in flour and food plants.
gentle, high-friction pulling for
glass, timber, and packaging.
Poly and variable speed belts for compact, adjustable drives
Poly V-belts combine the flexibility of a flat belt with the grip of multiple V-belts in one carcass. Variable speed belts ride adjustable sheaves for stepless speed control.
LIGHT COMMERCIAL · PH & PJ STANDARD INDUSTRIAL · PK
HIGH-RATIO SERPENTINE
PJ & PH Micro-Rib PK Automotive & Marine
1 Belt Small pitch design suited for domestic Engineered for commercial vehicle auxiliary appliances, fitness treadmills, small front-end accessory drives, water pumps,
compressors, and medical apparatus. fans, and heavy alternators.
Replaces Multi-Belt Sets
Runs smoothly over reverse idlers and ultra-compact pulleys,
achieving gear ratios up to 40:1 at belt speeds exceeding 60 m/s.
HEAVY INDUSTRIAL · PL SEVERE DUTY · PM
PL Heavy Equipment PM Power Plant Drives
Delivers continuous duty power on industrial Massive torque transmission for sugar
air compressors, milling machines, mills, aggregate processing, heavy
Virtually vibration-free · Uniform load distribution commercial pumps, and large blowers. extruders, and industrial generators.
AMERICAN STANDARD EUROPEAN STANDARD
Inch Variable Speed (RMA) Metric Variable Speed (DIN 7719)
Built with heavy transverse rigidity to resist dishing while riding Reinforced polychloroprene compound infused with high-modulus
between sliding sheave flanges. Moulded bottom cogs maintain aramid cords. Keeps pitch-line stability across agricultural
high airflow and cooling under continuous friction shifts. combines, variable workshop lathes, and industrial centrifuges.
RMA standards · 1422V+ industry sizes · Textile machinery, machine tool spindles, prinDtiInNg 7p7r1e9ss sepsecification · W16–W80 width series · Harvesters, precision drill
presses, variable conveyors
Conveyor, round and flat belts move the product
Continuous product transport, packaging conveying, and high-speed flat power transmission across South African facilities.
BULK & UNIT HANDLING
Industrial Conveyor Belts
Heavy-duty rubber ply, PVC, and food-grade PU conveyor belting for mining
bulk haulage, packaging lines, agricultural packhouses, and logistics hubs.
THERMAL SPLICING
Polycord PU Round Belts
Solid polyurethane round cord easily welded on-site. Ideal for roller conveyors,
turn-table diverters, can-handling lines, and ceramic tile processing.
HIGH VELOCITY
High-Efficiency Flat Belts
Polyamide and aramid core flat transmission belts for high-speed
textile spindles, wood chippers, printing folders, and flour mill lines.
Talk to Cobrel about your next drive
Contact Us Business Hours
Address: Cobrel (Pty) Ltd, 48A Steel Rd, Kempton Monday - Thursday: 07:00 AM - 16:30 PM
Park, Johannesburg, 1619 Friday: 07:00 AM - 15:00 PM
Email: [email protected] Saturday - Sunday: Closed
Sales: 011 394 7152 cobrel.co.za
Sales: 063 674 4667
24hr Support: 082 456 3707
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