Plastic Standard Plastic Worm Worm Author standard: http: // Hex Head Bolt,Hex Screws,Hex Flange Head,Flange Head Nuts Shaoxing Grace International Trade Co.,Ltd , https://www.shaoxinggrace.com
Plastic worm gear wheel standard
1 The basic parameters of cylindrical worm gear drive refer to GB10085-88 standard, and the relevant parameters can be obtained from the Mechanical Design Manual, Third Edition, Volume III, Part Four, Chapter 4, published by Chemical Industry Press, Table 14-4-2 Use as shown in Table 14-4-9. [Does not include double arc cylindrical worm (SH type)]
2 The basic parameters of the circular cylindrical worm (ZC type) reducer refer to the JB2318-79 standard, and the relevant parameters can be obtained from the Mechanical Design Manual, Third Edition, Volume III, Part Four, Chapter 4, published by Chemical Industry Press. Used in Table 14-4-10.
3 The geometric calculation formula standard for cylindrical worm drive, cited in the Mechanical Design Handbook published by the Chemical Industry Press, Third Edition, Volume III, Part Four, Chapter 4, Table 14-4-11 to Table 14-4-20 The calculation formulas and basic parameters listed in the standard are used as standards. [Does not include double arc cylindrical worm (SH type)]
4 The standard of geometric calculation formula for double-arc cylindrical worm drive, cited in the Mechanical Design Manual, Third Edition, Volume III, Part Four, Chapter 4, Table 14-4-21 to Table 14 The calculation formulas and basic parameters listed in 4-23 are used as standards.
5 Cylindrical worm drive accuracy standard refers to GB10089-88 standard, the relevant parameters can be obtained from the Chemical Industry Press, "Mechanical Design Manual", Third Edition, Volume III, Part Four, Chapter 4, Table 14-4-35 Used in Table 14-4-58. (In the fourth chapter, Table 14-4-35 to Table 14-4-58 applies to cylindrical worms, worm gears and transmissions with axis angle ∑=90o, modulus m≥1mm, and the diameter of the worm index circle is d2≤4000mm The worm type can be ZA type, ZI type, ZN type, ZK type and ZC type.)
5.6 Plastic worm and plastic worm gear material standard selection range name Material grade Usage characteristics Application range
Plastic worm 15Cr 20Cr seepage quenching (HRC56~62) and grinding for high speed heavy duty transmission
45 40Cr quenching (HRC56~62) and grinding
45 quenching and tempering treatment for low speed light load transmission plastic worm gear
Plastic worm gear
ZcuSn10Pb5Zn5
(5-5-5 tin bronze)
Strong resistance to gluing and low mechanical strength (σb is more expensive).
For high sliding speed (vs=5~15m/s) and long-term continuous working place
ZCUAl10Fe3
(10-3 aluminum bronze)
ZcuAl10Fe3Mn2
(10-3-2 aluminum bronze)
The anti-gluing ability is poor, but the mechanical strength is high (σb>300N/mm2), and the matching worm must be surface hardened and the price is relatively low.
For medium sliding speed (vs ≤ 8m / s)
TH150
TH200
Low mechanical strength and poor impact toughness, but easy to process and inexpensive.
For low speed light load transmission (v Note: 1. A suitable new material can be selected.
2. POM materials can be used for plastic materials for worm and worm gear.
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Standard plastic worm author: http: //
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