Screw Gear

Screw gears, also sometimes called crossed helical gears, are helical gears used in motion transmission between non-intersecting shafts.

Category: Gear

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Description

Screw gears, also sometimes called crossed helical gears, are helical gears used in motion transmission between non-intersecting shafts. The helical gears used in parallel beams have the same helix angle but opposite directions. For shaft angles other than the parallel, an arbitrary helix angle can be chosen. Assuming no profile shift, the intersecting angle of the shafts is the sum of the respective helix angles. Helical gears have point contacts and have lower efficiency than parallel or perpendicular shaft gears, and cannot transmit heavy loads.

Screw Gears: Technical Information

HZPT stock screw gears come in modules 1 ~ 4, 10 to 30 teeth, and four materials: S45C, SUS303, CAC702 (formerly A BC2), and MC nylon.

Catalog No.	Module	Material	Heat Treatment	Tooth Surface Finish	Precision JIS B 1702-1: 1998	Secondary Operations	Features
SN	1 ~ 4	S45C	—	Cut	N9	Possible	Popular screw gears. Additionally, gear tooth induction hardening secondary operations can be performed.
SUN	1 ~ 3	SUS303	—	Cut	N9	Possible	Suitable for food machinery due to SUS303's rust-resistant qualities.
AN	1 ~ 4	CAC702 (Al BC2)	—	Cut	N9	Possible	made of aluminum bronze, these gears have excellent wear resistance.
PN	1.5 ~ 3	MC901	—	Cut	N9	Possible	Light-weight products are made of MC Nylon and can be used without lubrication.

Selection Hints

Please select the most suitable products by carefully considering the characteristics of the items and the contents of the product tables. Before the final selection, it is also essential to read all applicable "CAUTION" notes. Since screw gears come in the right- or left-hand helix, include the letter "R" or "L" in the catalog number when you order.

1. Caution in Selecting the Mating Gears
Screw gears are used for offset shafts. Whether the shafts are paralleled offset or skewed offset depends on the helix hands of the mating gears.

Direction of Shaft	Arrangement of Helix Hands
Skewed Shafts	RH-RH or LH-LH
Parallel Shafts	RH-LH

our service

1. According to the customer requirements of the strength and performance of the product, we will choose different compressive forces of steel.

2. Our engineers using professional drawing software, will design a more reasonable size and better product performance.

3. We can customize the product according to the customer's needs so that the gear can perform the best in different working conditions.

4. To ensure that the quality of products can be controlled, we use professional measuring tools for quality testing at every step.

Product Quick Detail:

Standard and non-standard available
With high quality and competitive price
Prompt delivery
Packing as per customer’s demand.

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Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.

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Materials Available

1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request
product materials available

Surface Treatment

Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.

Processing Method

CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
product finishing

QC & Certificate

Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009

Package & Lead Time

Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port
product packages

Screw Gear

Screw Gears: Technical Information

Selection Hints