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Brief introduction of rack and pinion
2023/02/20
The rack is also divided into straight and helical gears, which are paired with straight and helical cylindrical gears respectively; the tooth profile of the rack is straight rather than involute (flat for the tooth surface), which is equivalent to an infinite radius of indexing circle cylindrical gear.
The main characteristics of rack and pinion
(1) Because the tooth profile of the rack is straight, so all points on the tooth profile have the same pressure angle, and equal to the dip angle of the tooth profile, this angle is called tooth angle, the standard value of 20 °.
(2) parallel to the top of the tooth angle line on any line has the same tooth pitch and modulus.
(3) The line parallel to the top angle line and the tooth thickness is equal to the width of the tooth groove is called the indexing line (center line), which is the reference line for calculating the size of the rack.
2026.07.06
Driven by the expansion of semiconductor wafer sizes, the upgrading of LCD panel production lines, and the tightening of sterile manufacturing standards in the pharmaceutical industry, demand for clean‑room racks is poised to experience a concentrated surge by 2026.
2026.07.06
Since 2026, the domestic equipment manufacturing sector has seen continuously rising demands for the precision and stability of transmission components, driving rapid growth in the zero-backlash rack market.
Focus on core rack production areas
Build high-precision and high-stability products, and constantly create higher competitiveness for customers
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