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Home / Product Range / Industrial Gears / 45# Steel Spur Gears / M3 Z24 45# Steel Quenched and Tempered Spur Gear, for Light Industrial Machinery and General Gear Reducers
  • M3 Z24 45# Steel Quenched and Tempered Spur Gear, for Light Industrial Machinery and General Gear Reducers
  • M3 Z24 45# Steel Quenched and Tempered Spur Gear, for Light Industrial Machinery and General Gear Reducers
45# Steel Spur Gears

M3 Z24 45# Steel Quenched and Tempered Spur Gear, for Light Industrial Machinery and General Gear Reducers

The M3 Z24 spur gear is the most classic and efficient basic component for parallel-shaft transmission. Made of quenched and tempered 45# steel with module 3, 24 teeth, and a pitch circle precisely controlled at 72mm, it balances very high transmission efficiency with excellent value for money.

Item Specification
Module 3
Number of teeth 24
Pressure angle 20°
Material 45# steel, quenched and tempered
Pitch circle diameter 72mm
Transmission ratio 1:1~6:1
Pitch line velocity ≤5m/s
Transmission efficiency Up to 99%
Machining Gear hobbing; hardening and keyway machining available on request



Key Product Advantages Key Selling Points Applications and Scenarios Contact Us

1. Zero axial thrust, longer bearing life: The teeth of a spur gear are parallel to the shaft axis, so no extra axial force is generated in operation. This not only makes bearing selection simpler and cheaper, but also avoids the uneven bearing wear caused by axial force, greatly extending the life of the whole machine.
2. Outstanding transmission efficiency: There is no sliding friction during meshing, and the maximum transmission efficiency can reach 99%. Energy loss is very small, making it ideal for small-to-medium power equipment that is energy-sensitive or needs long continuous operation.
3. Stable material and process: Quenching and tempering of 45# steel gives the gear excellent overall mechanical properties (good core toughness, wear-resistant tooth surface). Hobbing accuracy is stable, and subsequent induction hardening of the tooth surface and keyway customization are available on request.
4. Compact structure, simple assembly: A 72mm pitch circle diameter is a moderate size for small-to-medium module transmission and does not interfere with surrounding mechanisms, an ideal choice for miniaturizing automation equipment.

The first choice for "high efficiency + low maintenance" parallel-shaft drives: The no-axial-force design makes assembly adjustments the simplest, and it perfectly replaces energy-hungry worm gear or belt drives.
Dual assurance of stock and customization: Standard stock is kept for fast delivery, while small-batch modification of bore, face width, or heat treatment is also supported for flexible response to non-standard R&D.

General machinery: Parallel-shaft transmission in ordinary reducers, gear pumps, light industrial machinery, and packaging machinery.
Automation equipment: Conveyor line drive mechanisms, auxiliary mechanisms of machine tools, and the front stage before rack-and-pinion conversion in lifting equipment.
Agricultural machinery: Gearboxes of small-to-medium agricultural implements.

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About Rentai
Transmission Equipment

Shanghai Rentai Transmission Equipment Co., Ltd. is a manufacturer specializing in R&D, production and export of mechanical transmission components. Our main products include taper lock pulleys, taper lock bushes, timing pulleys, V-belts and timing belts. We also provide OEM & ODM custom service for non-standard transmission parts. Our factory covers over 8000 square meters, with more than 100 employees including 22 technical staff. We integrate casting, machining and finishing, equipped with CNC machines and testing instruments, with an annual casting output of 2000 tons. Supported by complete quality management system and international standards, our products are exported to Southeast Asia, Middle East, Europe and America, delivering reliable transmission solutions for global industrial clients.

  • 10+

    Industry Experience

  • 100+

    Production staff

  • 2000+Ton

    Annual Production

  • 8000+㎡

    Factory Area

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