Description

1. Product introduction and applicable scope
Serpentine spring coupling is an embodiment of high-torque of gear coupling and flexibility of flexible coupling, for applications where high torque is required, it is the simplest and most economical coupling.
2. Structural features 
T*0 basic type coupling: use for double flexible closed design of four-bearing system. It is characterized by combination of horizontally half split housing, serpentine spring and coupling, which allows replacement easily-worn parts without moving the equipment connected. 
T*0 high-speed coupling: double flexible closed design. It is characterized by combination of vertically split steel housing and serpentine spring as well as coupling, mainly used for the operating conditions of high speed rotation. 
T*1 Double-flange type coupling, T*5 single-flange type coupling: the middle section can be disengaged in order to facilitate maintenance of bearings and seals of the connected equipment. They are very ideal for use in pump. 
T*3 brake disc type coupling: it is better than the drum type brake in terms of cost, structure and performance etc. 
3.Type codes of coupling shaft hole and keyway 
1) Type and code of coupling shaft hole:
Y - cylindrical shaft hole
J – countersunk cylindrical shaft hole
Z – countersunk conical shaft hole
Z1 – non-countersunk conical shaft hole
2) Coupling type and code of coupling (keyway type) 
A - flat key single-keyway
B - flat key double-keyway in ***-degree arrangement
C - conical shaft hole and flat key single-keyway
4.Ordering instructions 
Please indicate the following information on the inquiry sheet or purchase order:
1)Application: engine and driven machine 
2)Power: normal power (kW), maximum power (kW) or torque (N·m)
3)Rotating speed for the application (r/min)
4)Quantity (units)
5)Model and series of coupling (***0T*0)
6)The shaft hole connection: sizes of driving and driven shaft holes, form of shaft hole, connection form of keyway, shaft diameter.
Designation example: ***0T*0 YA**0/YB*5
Explanation: basic type coupling of serpentine spring with a torque of ****0 N·m, its driving shaft has cylindrical shaft hole, ordinary single-flat key, diameter of shaft hole is **0mm, the driven shaft has cylindrical shaft hole, **0° ordinary double-flat key, diameter of shaft hole is *5mm. 
Note: Adopts JS9 specified in GB******9 standard when flat key connection is adopted, corresponding types and sizes of JB/T********9 for expansion sleeve coupling when keyless connection is adopted.