How is the gear precision of a gear reducer defined?
Release time:
2025-11-14 14:08
The gear precision of a gear reducer is defined as 12 degrees, represented by the numbers 1, 2, 3, 12 from top to bottom, with a typical precision of 5 to 9 degrees. Furthermore, based on different requirements for motion accuracy, transmission stability, and load distribution uniformity, the tolerances of each precision grade are divided into three groups: Group 1, Group 2, and Group 2.
The precision grade of a gear reducer should be determined based on economic and technical indicators such as usage, operating conditions, transmission efficiency, and circumferential speed.
V. Gear Precision Grades.
Machining Method: On a precision gear forming machine with very small periodic errors. The tooth surface is precision ground, and the large gear is precision hobbed, followed by cutting, grinding, or shaving. The tooth surface roughness can reach 0.4-0.8.
Applications: Precision gear indexing mechanisms; high-speed gears; high noise; requirements for smooth operation; high-speed steam turbines; gears.
Grade 7 gears have higher precision.
Machining Method: Tooth profile machining is performed using a high-precision gear machining machine. Unhardened tooth surfaces; cutting tools; high-precision cutting of hardened gear surfaces requires finishing (grinding, shaving, etc.) to achieve a tooth surface roughness of up to 1.6.
Applications: High-speed, low-load, or reversible equipment. Machine tool feed gears requiring appropriate gear transmissions. Medium-speed gears; reducers; planar gears, herringbone gears, etc.
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Common precautions for using speed reducers during the break-in period
Before use, carefully read the instruction manual to understand the basic principle of the speed reducer. Add lubricating oil to the level specified in the manual. After starting the machine, check whether any fastening bolts are loose and adjust them promptly. Keep the machine clean to prevent poor heat dissipation. After the break-in period, change the lubricating oil. By doing the following, you can reduce the occurrence of early failures, extend the service life, improve production efficiency, and bring you more benefits from the speed reducer.
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Analysis of the Development Trend of Low Noise Technology for Gear Reducers
A speed reducer is a power transmission mechanism that uses gears to reduce the rotational speed of a motor to a desired speed while obtaining a larger torque. Speed reducers have a wide range of applications in current power and motion transmission mechanisms. However, the noise pollution from speed reducers is a major factor in environmental damage, interfering with people's rest, study, and work. Low-noise speed reducers should be a research and development topic for speed reducer manufacturers.
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