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worm gear/double enveloping worm gears/GEARX

worm gear/double enveloping worm gears/GEARX
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worm gear/double enveloping worm gears/GEARX

Product catalog summary
Overview: The document is a catalog from Beijing GEARX Limited, focusing on double enveloping worm gearing systems known for their high efficiency, large loading capacity, and energy-saving features due to unique design elements.
Key Features:
  • The hourglass worm design allows for continuous engagement of more teeth, resulting in a larger tooth bearing and longer contact lines.
  • Enhanced lubrication is achieved through a larger induced curvature radius and smaller friction coefficient, leading to higher transmission efficiency.
  • The gearsets have a high load capacity and compact design, capable of enduring 1.5 to 3 times higher loads than cylindrical worm gearsets.
  • Teeth can be ground and nitrided for increased surface hardness (HRC≥55) and reduced surface roughness (Ra≤0.8), improving accuracy and longevity.
Applications: These gearsets are utilized in industries such as metallurgical, petroleum, chemical, textile, architectural, woodworking, mineral-dressing, food machinery, and aerospace. They are suitable for devices like hoists, cranes, elevators, and conveyors.
Main Products:
  • Standard series with center distances ranging from 1.5 to 28 inches and transmission ratios from 5 to 70.
  • Custom-made gearsets with center distances from 38.1 mm to 1200 mm.
Forming Principle: The forming principle involves using a gear with a specific tooth surface to generate an enveloping hourglass worm, including primary and secondary enveloping, resulting in superior load distribution and lubrication properties.
Technical Specifications: Detailed specifications are provided for various gearsets, including dimensions, transmission ratios, and other engineering data. These specifications are subject to change, with certified specifications available upon request.
Specifications:
  • Center Distance (CD): Gearsets with center distances ranging from 6.000 inches to 28.000 inches are listed.
  • Gear Ratios: Vary from 5:1 to 70:1, depending on the specific gearset model.
  • Dimensions: All dimensions are provided in inches, with specific tolerances indicated for components such as worm and worm gear dimensions.
Key Parameters:
  • PD (Pitch Diameter) and OD (Outside Diameter): Critical dimensions for both the worm and worm gear, affecting performance.
  • Material and Construction: While materials are not specified, precision in dimensions and tolerances is emphasized.
Notes:
  • All dimensions and engineering data are subject to change, with certified specifications available upon request.
  • Contact information for Hebei GEARX Limited is provided for further inquiries.
Conclusion: The document serves as a technical reference for selecting and understanding the specifications of double enveloping worm gearsets, highlighting the importance of precise measurements and tolerances in gear transmission applications.
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Catalog excerpts

worm gear/double enveloping worm gears/GEARX-1

Specialized In Gear Transmission Double Enveloping Worm Gearing Catalog

 Open the catalog to page 1
worm gear/double enveloping worm gears/GEARX-2

DOUBLE ENVELOPING WORM GEARING • Since the worm is an hourglass worm, there are more teeth in continuous engagement • The tooth bearing is larger, and there are two instantaneous lines of contact, so the length of contact line is longer • Easily establishing lubrication oil film, and has larger induced curvature radius, smaller friction coefficient, higher transmission coefficient, saving energy • Large loading capacity under the same specification, compact dimension can be designed under the same transmitted power and the same transmission ratio • The teeth of worm can be ground, and after nitriding,...

 Open the catalog to page 2
worm gear/double enveloping worm gears/GEARX-3

APPLICATION The double enveloping worm gearsets are widely used for metallurgical, petroleum chemical, light textile, architectural, wood working, mineral-dressing equipment and food machinery as well as aero-space industry etc., For example, they can be used in architectural hoist, tower cranes, elevators, escalators, passenger conveyors, wood working machines, mineral-dressing for gold, continuous casting machinery, universal machines precision indexing mining equipment, feeder breakers, shuttles, conveyors, rock crushers, heavier multi-stage gearing, roll drives, winders, slitters, roll turnover...

 Open the catalog to page 3
worm gear/double enveloping worm gears/GEARX-4

DOUBLE ENVELOPING WORM GEARING In 1971, China successfully developed the planar double enveloping worm gear product. In 1981, China successfully manufactured a planar double enveloping worm gearing for screwdown gear of heavy mill, with a center distance of 1,200mm. GEARX brand double enveloping worm gearsets are manufactured by unique method, compared with the normal cylindrical worm gearsets, the double enveloping worm gearsets has more teeth in meshing, and has one more group of lines of contact, so the total load is divided among more individual gear teeth, and the load is further divided...

 Open the catalog to page 4
worm gear/double enveloping worm gears/GEARX-5

GEARX Specialized In Gear Transmission Double Enveloping Worm Gearset Center Distance Note: 1 All dimensions are in inches. 2 Dimensions and other engineering data are subject to change, Certified specifications are available on request. Hebei GEARX Limited | Tel: 86-312-489-5066 | Fax: 86-312-489-5088 | Email: [email protected] | www.gearx.com.cn

 Open the catalog to page 5
worm gear/double enveloping worm gears/GEARX-6

GEARX Specialized In Gear Transmission Double Enveloping Worm Gearset Center Distance Note: 1 All dimensions are in inches. 2 Dimensions and other engineering data are subject to change, Certified specifications are available on request. Hebei GEARX Limited | Tel: 86-312-489-5066 | Fax: 86-312-6489-5088 | Email: [email protected] | www.gearx.com.cn

 Open the catalog to page 6
worm gear/double enveloping worm gears/GEARX-7

GEARX Specialized In Gear Transmission Double Enveloping Worm Gearset Center Distance Note: 1 All dimensions are in inches. 2 Dimensions and other engineering data are subject to change, Certified specifications are available on request. Hebei GEARX Limited | Tel: 86-312-489-5066 | Fax: 86-312-489-5088 | Email: [email protected] | www.gearx.com.cn

 Open the catalog to page 7
worm gear/double enveloping worm gears/GEARX-8

GEARX Specialized In Gear Transmission Double Enveloping Worm Gearset Center Distance Note: 1 All dimensions are in inches. 2 Dimensions and other engineering data are subject to change, Certified specifications are available on request. Hebei GEARX Limited | Tel: 86-312-489-5066 | Fax: 86-312-6489-5088 | Email: [email protected] | www.gearx.com.cn

 Open the catalog to page 8
worm gear/double enveloping worm gears/GEARX-9

GEARX Specialized In Gear Transmission Double Enveloping Worm Gearset Center Distance Note: 1 All dimensions are in inches. 2 Dimensions and other engineering data are subject to change, Certified specifications are available on request. Hebei GEARX Limited | Tel: 86-312-489-5066 | Fax: 86-312-489-5088 | Email: [email protected] | www.gearx.com.cn

 Open the catalog to page 9
worm gear/double enveloping worm gears/GEARX-10

Specialized In Gear Transmission Double Enveloping Worm Gearset Center Distance Note: 1 All dimensions are in inches. 2 Dimensions and other engineering data are subject to change, Certified specifications are available on request. Hebei GEARX Limited | Tel: 86-312-489-5066 | Fax: 86-312-6489-5088 | Email: [email protected] | www.gearx.com.cn

 Open the catalog to page 10
worm gear/double enveloping worm gears/GEARX-11

GEARX Specialized In Gear Transmission Double Enveloping Worm Gearset Center Distance Note: 1 All dimensions are in inches. 2 Dimensions and other engineering data are subject to change, Certified specifications are available on request. Hebei GEARX Limited | Tel: 86-312-489-5066 | Fax: 86-312-489-5088 | Email: [email protected] | www.gearx.com.cn

 Open the catalog to page 11
worm gear/double enveloping worm gears/GEARX-12

GEARX Specialized In Gear Transmission Double Enveloping Worm Gearset Center Distance Note: 1 All dimensions are in inches. 2 Dimensions and other engineering data are subject to change, Certified specifications are available on request. Hebei GEARX Limited | Tel: 86-312-489-5066 | Fax: 86-312-6489-5088 | Email: [email protected] | www.gearx.com.cn

 Open the catalog to page 12
worm gear/double enveloping worm gears/GEARX-13

GEARX Specialized In Gear Transmission Double Enveloping Worm Gearset Center Distance Note: 1 All dimensions are in inches. 2 Dimensions and other engineering data are subject to change, Certified specifications are available on request. Hebei GEARX Limited | Tel: 86-312-489-5066 | Fax: 86-312-489-5088 | Email: [email protected] | www.gearx.com.cn

 Open the catalog to page 13
worm gear/double enveloping worm gears/GEARX-14

Specialized In Gear Transmission Double Enveloping Worm Gearset Center Distance Note: 1 All dimensions are in inches. 2 Dimensions and other engineering data are subject to change, Certified specifications are available on request. Hebei GEARX Limited | Tel: 86-312-489-5066 | Fax: 86-312-6489-5088 | Email: [email protected] | www.gearx.com.cn

 Open the catalog to page 14
worm gear/double enveloping worm gears/GEARX-15

GEARX Specialized In Gear Transmission Double Enveloping Worm Gearset Center Distance Note: 1 All dimensions are in inches. 2 Dimensions and other engineering data are subject to change, Certified specifications are available on request. Hebei GEARX Limited | Tel: 86-312-489-5066 | Fax: 86-312-489-5088 | Email: [email protected] | www.gearx.com.cn

 Open the catalog to page 15
worm gear/double enveloping worm gears/GEARX-16

GEARX Specialized In Gear Transmission Double Enveloping Worm Gearset Center Distance Note: 1 All dimensions are in inches. 2 Dimensions and other engineering data are subject to change, Certified specifications are available on request. Hebei GEARX Limited | Tel: 86-312-489-5066 | Fax: 86-312-6489-5088 | Email: [email protected] | www.gearx.com.cn

 Open the catalog to page 16

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