K Series Serpentine Belts – High-Performance Multi-Rib Belts for Automotive and Industrial Applications
K Series serpentine belts, also known as K-section Poly-V belts, are engineered for high-speed, high-torque power transmission in compact drive systems. Featuring a multi-ribbed profile with a rib pitch of 3.56 mm, these belts provide exceptional flexibility, quiet operation, and superior grip across multiple pulley contact points. K Series belts are widely used in automotive serpentine systems, as well as in industrial equipment where consistent and efficient performance is crucial.
Rib Pitch: 3.56 mm (0.140 inches)
Belt Height: Approx. 4.5 mm
Top Width: Varies based on number of ribs (e.g., 6 ribs = 21.36 mm)
Construction Materials: High-strength EPDM or neoprene rubber with tensile cords made from polyester or aramid
Effective Length Range: Typically from 700 mm to over 2500 mm
Standards: Conforms to SAE J1459 and ISO 9982 specifications
Pulley Diameter: Minimum recommended diameter is 50 mm
Performance: Oil, heat, and abrasion resistant, anti-static, engineered for long service life
Each belt is labeled by rib count and effective length (e.g., 6PK1060 = 6 ribs, 1060 mm effective length).
K Series serpentine belts are widely used in:
Engine accessory drives (alternators, A/C compressors, water pumps, power steering)
High-performance and hybrid vehicles
Compressors
Agricultural equipment
Industrial fans and blowers
Lawn tractors
HVAC units
Fitness machines
The K Series serpentine belt is a trusted solution for modern drive systems, offering superior efficiency, compact design, and long-lasting reliability in demanding conditions.