Worms & Worm Wheels

蜗轮蜗杆

Worm and worm wheel pairs are used for power transmission between non-intersecting shafts (typically 90°), offering high reduction ratios and self-locking capability. Gyan Drive produces ZA (Archimedean), ZN (Normal Straight), ZI (Involute), and ZK (Milled-Profile Helical) worm types. Multi-start worms deliver high efficiency; single-start worms provide reliable self-locking.

Specifications

Worm Starts	Z1~Z6 (single/multi-start)
Module Range	M0.5 ~ M16
Worm Profile Types	ZA / ZN / ZI / ZK
Lead Angle	3° ~ 30°
Precision Grade	DIN 5~7, custom grades available
Worm Materials	40Cr, 20CrMnTi, 42CrMo
Wheel Materials	ZCuSn10P1 (Tin Bronze), ZCuAl10Fe3 (Aluminum Bronze)
Reduction Ratio	7.5:1 ~ 80:1
Efficiency	60~92% (depends on starts)
Applications	Elevators, conveyors, gearboxes, automation machinery, machine tools

DIN / ISO / AGMA / GB Standards Reference

Standard System	Grade / Scope	Region
DIN 3961~3967	DIN Class 5~8	Germany / Europe
ISO 1328	ISO Class 5~8	International
AGMA 2000-A88	AGMA Q9~Q12	North America
GB/T 10095	GB Class 5~8	China

Manufacturing Processes

Process	Equipment	Capability	Precision
Worm Milling	CNC Mill-Turn / Worm Milling Machine	M1~M12	GB Class 7~8
Worm Grinding	Worm Grinding Machine	M1~M10	GB Class 6~7
Worm Wheel Hobbing	Hobbing Machine + Worm Wheel Hob	M1~M12	GB Class 7~8
Worm Wheel Fly Cutting	CNC Machining Center	M1~M8	GB Class 8~9

Heat Treatment Capabilities

Treatment Type	Materials	Case Depth	Surface Hardness	Post Process
Carburizing & Quenching	20CrMnTi	0.5~2.0mm	58~62HRC	Grinding required
Q&T + Induction	40Cr/42CrMo	1.0~5.0mm	48~55HRC	May grind

Testing & Inspection

Worm/Wheel Measuring Center, Meshing Tester, CMM, Roughness Tester, Hardness Tester. Tooth profile inspection with contact pattern report included.

Worms & Worm Wheels