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The H113749 is an HM section cogged V belt engineered for separator cylinder and countershaft drive positions on large combine harvesters. It features a high strength aramid tensile member for superior load retention and a chloroprene rubber compound that resists heat, oil, and weathering in demanding field conditions.
Our factory, with our own CNAS laboratory, has passed the test of ISO9001, ISO14001, ISO45001 and ISO50001.
Brand :
ZHONGLIANGItem No :
HMCertificate :
ISO9001, ISO14001, ISO45001 and ISO50001Payment :
T/TProduct Origin :
ChinaShipping Port :
Shanghai Port, Ningbo Port, Tianjin Port, Lianyungang PortLead Time :
15-30 working daysWhat This Belt Does
The H113749 is a critical driveline component that powers the separator cylinder and torque-sensing countershaft drive on large combine harvesters. This belt enables the separation system to operate at consistent speeds, processing crop material efficiently even under varying load conditions throughout the harvest day.
HM Section Design
This belt belongs to the HM cross section family, a heavy duty profile with a top width of 50.8 mm and a height of 22.35 mm. The wider top width and deeper section provide greater contact area with the pulley grooves, resulting in more efficient power transfer and reduced slippage under heavy loads. HM section belts are specifically engineered for high torque applications in agricultural machinery where standard sections would struggle to maintain grip.
Aramid Cord
The strength of this belt starts with its tensile cord. Aramid fibers offer significantly higher tensile strength than standard polyester while stretching far less under load. This means the H113749 maintains its set tension over extended working periods, reducing the need for frequent retensioning. Aramid also resists flex fatigue better than conventional materials, so the belt lasts longer on drives with constant bending around pulleys.
Chloroprene Rubber Compound
The rubber body of the H113749 is formulated with a chloroprene based compound. This material choice provides several practical advantages in agricultural settings. It resists hardening and cracking when exposed to engine compartment heat. It maintains flexibility during cold morning starts. And it withstands the oil and grease that inevitably find their way onto drive components during routine servicing.
Cogged Profile for High Flex Applications
The precision molded cogs on the inner circumference reduce bending resistance, allowing the belt to run cooler around small diameter pulleys. Less internal friction means longer belt life, especially in high cycle applications where standard flat back belts would overheat and fail. The raw edge cogged design also provides better grip and reduces slippage compared to wrapped belts.
Where This Belt Fits
This belt is designed for the separator cylinder and torque-sensing countershaft drive positions on large frame combines. Compatible models include the 6620, 6600, 6622, 7700, 7720, and 8820 series. It serves as a direct replacement for the original equipment belt in these applications.
Dimensions
Effective Length: 2324.1 mm (91.5 inches)
Width: 50.8 mm (2.0 inches)
Thickness: 22.35 mm
Installation Reminder
Always check the condition of the pulley grooves when installing a new belt. Worn or glazed pulleys can reduce the service life of even the best belt. Clean the drive and verify correct alignment and tension according to standard practices.
Quality Statement
The H113749 is manufactured under controlled conditions with attention to dimensional accuracy and material consistency. It is offered as a reliable aftermarket replacement component, designed to perform to original equipment standards without carrying any brand markings or logos.
The H113749 is an HM section cogged V belt engineered for separator cylinder and countershaft drive positions on large combine harvesters. It features a high strength aramid tensile member for superior load retention and a chloroprene rubber compound that resists heat, oil, and weathering in demanding field conditions. Our factory, with our own CNAS laboratory, has passed the test of ISO9001, ISO14001, ISO45001 and ISO50001.
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