1120-8M-30 Metric Curved Tooth Timing Belt

1120-8M-30 Metric Curved Tooth Timing Belt (1120-8M-30 Metric Curved Tooth Timing Belt)

The 1120-8M-30 Metric Curved Tooth Timing Belt is an industrial-grade synchronous power transmission belt engineered for high-torque, non-slip mechanical drives. Featuring an advanced curvilinear (HTD) tooth profile, the 1120-8M-30 ensures smooth tooth engagement, minimal backlash, and precise timing synchronization across high-speed and heavy-load applications without the stretch, slippage, or lubrication requirements of roller chains or traditional trapezoidal belts.

Key Features & Performance Benefits

• Curvilinear HTD Tooth Profile: Distributes tooth shear stresses uniformly across the tooth root to resist tooth ratcheting, reduce vibration, and deliver significantly quieter operation.
• High-Tensile Fiberglass Cords: Helically wound fiberglass reinforcement cords provide high tensile strength and dimensional stability with virtually zero elongation, eliminating retensioning maintenance.
• Wear-Resistant Nylon Fabric Facing: Low-friction, durable woven nylon fabric over the teeth shields against abrasive wear and extends service life in harsh operating environments.
• Oil & Heat Resistant Compound: High-grade chloroprene (neoprene) backing protects tensile cords against ambient dirt, grease, moderate oils, and frictional heat buildup.
• Standardized Interchangeability: Engineered in strict compliance with ISO 13050 and DIN 7721 synchronous drive standards.

Technical Specifications

• SKU / Part Number: 1120-8M-30
• Belt Type: Metric Curved Tooth Synchronous Timing Belt (HTD Profile)
• Tooth Pitch: 8.0 mm (8M)
• Pitch Length (Lp): 1120 mm (44.09″)
• Belt Width: 30 mm
• Number of Teeth: 140
• Tooth Height: 3.4 mm
• Overall Belt Thickness: 6.0 mm
• Tensile Cord Material: Fiberglass Tensile Cords
• Standards Conformance: ISO 13050 / DIN 7721

Common Applications

Widely utilized in precision industrial machinery including CNC machine tools, robotics, linear positioning actuators, industrial 3D printing and laser systems, packaging lines, conveyors, automated material handling, and automotive timing assemblies.