Compression spring is a general hardware accessory:
A name - B dimensional accuracy and rotation direction - C standard number - D material number - e surface treatment
A name: compression spring
B dimensional accuracy and rotation direction: D × D2 × H0 - precision rotation direction
C Standard No.: gb2089-80
Note: if the rotation direction of the spring is left-hand rotation, it should be noted; if it is right-hand rotation, it need not be noted
When it is required to check the inner diameter of the spring, add "D1" after the value of D2.
Marking example: material diameter: 1.2mm, spring pitch diameter: 8mm, free height: 40mm, load, outer diameter, free height and perpendicularity accuracy of axis line and two end rings: Grade 2, material: carbon spring steel wire group IIA, left-hand spring with galvanized surface;
Compression spring 1.2 × eight × 40-2 left gb2089-80 · Ⅱ A-D · Zn.
The material diameter is 3mm, the spring pitch diameter is 20mm, the free height is 80mm, the accuracy of load, inner diameter, free height and the perpendicularity of the axial line and the two end rings is grade 3, the material is carbon spring steel wire group II, and the surface is oxidized right-hand spring;
Compression spring 3 × 20D1 × 80 GB2089-80。
