ACCURATE HELICAL SPRINGS PVT. LTD.

Waliv, Thane, Maharashtra

Garter springs are long, close coiled extension springs with the ends fastened together and then used in the form of a ring to hold mechanical seals on a shaft, or to hold round segments together, or as driving belts such are often found in cameras, projection machines, and similar devices.

 

We manufacture Garter Springs from Wire dia 0.5 mm to 3 mm.
	Garter springs are long, close coiled extension springs with the ends fastened together and then used in the form of a ring to hold mechanical seals on a shaft, or to hold round segments together, or as driving belts such are often found in cameras, projection machines, and similar devices. we use several methods of fastening the ends which are like
	1. Half hooks on each end can be hooked together.     2. A small screw can be inserted tightly in one end and the other end of the spring is reverse twisted so it winds itself onto the projecting end of the screw.     3. Several coils on one end can be wound at a reduced diameter. The spring is then reverse twisted and the reduced end is threaded into the other end.
	A familiar application of a garter spring is for an oil seal used on a shaft .The pressure per linear inch exerted by the spring on the shaft is determined by the amount of contraction exerted by the spring. This is often difficult to calculate precisely due to many variables involved including initial tension, rate, friction, effect of end fasteners, etc.

The spiral spring generally called clock spring is designed to produce a torque force [circular movement and appears in two basic models; one with open coils [type A and one with tight coils [type B].

 

	The spiral spring generally called clock spring is designed to produce a torque force [circular movement and appears in two basic models; one with open coils [type A and one with tight coils [type B].
	Type A in working works without friction and is basically used at minor torsion angles. Up to 360º e.g., locking mechanisms
	Type B is mounted in housing and can be designed to deflect several coils. It has a low force increase and is used for example a drive spring. Normally, this spring is delivered with a locking ring or wrapped by a metal strip.

The mode of operation of torsion springs is different from compression springs and extension springs. At accurate springs, wide ranges of torsion springs are manufactured on CNC Machines.

 

We manufacture compression springs from Wire dia 0.1 mm to 12.5 mm.
	The mode of operation of torsion springs is different from compression springs and extension springs. At accurate springs, wide ranges of torsion springs are manufactured on CNC Machines.
	A torsion spring is, in effect, a wound up cantilever. Torsion springs supply or withstand torque. To supply this torque, torsion springs require some from of spring leg. The type of spring leg is dictated by the application and can be as simple as a tangential straight leg or much more complex.
	It should be noted that it is best to keep the legs as simple as possible to reduce manufacturing tolerances and manufacturing difficulties.
	Torsion Springs-Design Hints
	1. Proportions. A spring index that is a ratio of a mean diameter divided by wire diameter between 4 and 14 is best. Larger ratios require more than average tolerance. Ratios of 3.5 or less often cannot be coiled on automatic spring coiling machines because of arbour breakage. Springs with smaller or larger indexes do not give results exactly as the design formulas.     2. Total coils. Torsion springs with less than 3 coils buckle and are difficult to test accurately. When 30 or more coils are used, light loads will not deflect all the coils simultaneously due to the friction with supporting rod.     3. Diameter reduction. The inside diameter reduces during deflection. This should be considered and accordingly clearance should be provided over the supporting rod. Also, allowances should be considered for normal spring diameter tolerances.     4. Hand. The hand or direction of coiling should be specified for the spring designed, so deflection causes the spring to wind up and have more coils. This increase in coils and in overall length should be considered during design. Deflecting the spring in an unwinding direction causes high stress and may cause early failure.     5. Bends Arms should be as straight as possible. Bends are difficult to produce and often are made by secondary operations, and are expensive. Sharp bends are stress raisers that cause early failure. Bend radius should be as large as possible. Hooks tend to open during deflection.

As the name suggests it is a heart of any automobile. It is used in the Engine of any vehicle. The difference between regular compression Spring and the valve spring is that this spring works in high RPM and hot conditions the temperature may be around 150º C.

We manufacture Valve springs from wire dia 1.5 mm to 5 mm.
	As the name suggests it is a heart of any automobile. It is used in the Engine of any vehicle. The difference between regular compression Spring and the valve spring is that this spring works in high RPM and hot conditions the temperature may be around 150º C. Also valve spring has variable pitch in some cases.
	For valve spring the Raw material required is oil hardened & tempered wire IS 4454 part III, 2d, 1d, 2s, Vw etc. Only the highest quality of super clean high strength alloy steel is used in the manufacturing of valve spring.
	Whether you need a valve spring for car, motorcycle, tractor, truck engine etc. We have the technology and the know how to meet your needs of your vehicle engine.

Form springs, We manufacture wire form springs fully on automatic CNC machines. It must be remembered that a wire form of similar shape & dimensions may exert different forces due to different manufacturing methods adopted.There is a special wire forming machine for making complicated products including multisided machines.