{"id":1868,"date":"2026-07-20T05:36:39","date_gmt":"2026-07-20T05:36:39","guid":{"rendered":"https:\/\/gearrack.top\/?p=1868"},"modified":"2026-07-20T05:36:39","modified_gmt":"2026-07-20T05:36:39","slug":"steel-helical-gears-for-conveyor-drives","status":"publish","type":"post","link":"https:\/\/gearrack.top\/it\/steel-helical-gears-for-conveyor-drives\/","title":{"rendered":"Steel Helical Gears for Conveyor Drives"},"content":{"rendered":"
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GEAR APPLICATION GUIDE \u00b7 HELICAL GEAR \u00b7 H03<\/span><\/p>\n

Steel Helical Gears for Conveyor Drives:
\nWhen to Choose Helical over Spur and How to Size Them<\/span><\/h1>\n

Helical gears are specified for conveyor drives when noise levels must be controlled, when pitch line velocity exceeds 5\u20136 m\/s, or when maximum load capacity in a compact enclosed gearbox is the design priority. This guide covers the helical gear design advantages over spur gears for conveyor applications, helix angle selection, the axial thrust complication, material specification, and the conveyor drive configurations where helical gears outperform spur alternatives.<\/p>\n

20CrMnTi \u00b7 42CrMo4 \u00b7 316L<\/span>
\nHelix 12\u00b0\u201325\u00b0 \u00b7 M4\u2013M12 \u00b7 DIN 5\u20138<\/span>
\nBelt \u00b7 Chain \u00b7 Enclosed Gearbox \u00b7 Noise Spec<\/span><\/div>\n<\/div>\n<\/div>\n
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NOISE REDUCTION<\/p>\n

6\u201310 dB(A)<\/p>\n

Helical vs equivalent spur gear at same speed and load. The primary reason to specify helical gears for indoor conveyor drives in noise-controlled environments such as food factories, distribution centres, and hospital logistics<\/p>\n<\/div>\n

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LOAD CAPACITY GAIN<\/p>\n

15\u201330%<\/p>\n

Higher power density of helical vs spur gears at same module, centre distance and face width. Allows compact gearbox housing for high-power conveyor drives where space is a constraint<\/p>\n<\/div>\n

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HELIX ANGLE<\/p>\n

12\u00b0 \u2013 25\u00b0<\/p>\n

Practical helix angle range for enclosed conveyor gearbox helical gears. 12\u00b0\u201315\u00b0 for low thrust; 20\u00b0\u201325\u00b0 for maximum noise reduction. Standard industrial conveyor helical gearbox: 15\u00b0\u201320\u00b0<\/p>\n<\/div>\n

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EFFICIENCY<\/p>\n

98\u201399.5%<\/p>\n

Per helical gear mesh \u2014 same as equivalent spur gears. Unlike worm reducers, helical gear conveyor drives impose no efficiency penalty for the noise and compact geometry benefits they provide<\/p>\n<\/div>\n<\/div>\n

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When to Specify Helical Gears for a Conveyor Drive<\/h2>\n

The spur gear is the correct default choice for most industrial conveyor drives \u2014 lower cost, simpler housing design, no axial thrust bearing requirement, and equally high efficiency. Helical gear conveyor drives are the correct choice in four specific situations where spur gears cannot meet the design requirement: a documented noise specification, high pitch line velocity, a compact gearbox envelope requirement, or a smooth torque transmission requirement for precision conveyor positioning.<\/p>\n

\"Customized<\/p>\n

Korea Ever-Power’s helical gears for conveyor drives<\/a> are manufactured in 20CrMnTi (standard heavy-duty), 42CrMo4 (through-hardened medium-duty), and 316L stainless (food and washdown conveyors) \u2014 covering single and multi-stage enclosed helical gearboxes for belt, chain, slat, and roller conveyor drives from 1.5 kW to over 500 kW. All enclosed conveyor drive helical gears are specified with the correct helix angle, thrust bearing arrangement, and module to match the conveyor’s duty cycle, speed, and noise environment.<\/p>\n

Unlike the worm gear conveyor drive alternative, the helical gear drive achieves its noise reduction without any efficiency penalty \u2014 helical gear transmission efficiency is 98\u201399.5% per mesh, the same as spur gears and far better than worm reducers at equivalent ratio. This means a helical gear conveyor drive upgrade from a noisy spur gearbox reduces noise by 6\u201310 dB(A) without requiring a larger motor or increasing energy consumption \u2014 a combination that no other gear type delivers.<\/p>\n

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DECISION GUIDE: HELICAL vs SPUR FOR CONVEYOR DRIVES<\/p>\n

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Always Specify Helical<\/p>\n