Firestone W01-R58-4051 Industrial Air Spring 4.5 x 3 Aluminium 4 1/2" x 3

 
4.5 x 3 Specific parameters and specifications:
 
Air Inlet centered G 3/8"
Tapped Hole 3 x M6, 15 mm deep
Diameter Top- / Bottom Plate 114 mm
Diameter max at 7 bar 163 mm
min Height 70 mm
max Height 145 mm
Stroke 75 mm

Top Plate Hole/Stud: 3 Pieces
Top Plate Hole/Stud: 3 Pieces
 
❶Nut / Blind Nut
Top Cover Plate Screw (Nut) Tooth : 3 Pieces- x M6, 15 mm
Screw Center Distance of Top Cover Plate : 93 mm
Bottom Cover Plate Screw (Nut) Tooth : 3 Pieces- x M6, 15 mm
Screw Center Distance of Bottom Cover Plate :93 mm
❷ Gas Hole / Air inlet / Air Fitting
Gas Hole / Air inlet : G 3/8" at the middle of the plate
❸ Cover Plate
Top Cover Plate Diameter (Width): 110 mm
Bottom Cover Plate Diameter (Width): 110 mm
❹Rubber Bellows
Rubber Bellows Natural Diameter : 115 mm
Rubber Bellows Natural Height : 180 mm
❺ Bumper block / Buffer block
Without Bumper Block
❻ Girdle Hoop / Girdle Ring
With Girdle Hoop :Two Piece of Girdle Hoop
 

 
The structure of the air spring:

1, It is a kind of rubber element which is made of cord layer, inner or outer rubber layer or traveler through vulcanization after forming to form a kind of flexible body, and realize the elastic function by the compressibility of filling air. Commonly known as air springs, rubber airbags, airbags and so on.
2, the assembly by the rubber air spring, the base, the base (piston), the cushion after the assembly of a sealed chamber with the overall shape.
3, according to the shape is divided into capsule, film and sleeve three categories. Sealing structure by the pressure into the self-styled, flange clamping, hoop ring sealed and mixed four categories.
4, the load of the air spring shock absorber is mainly borne by the cord, the cord layer mainly consists of 2 layers, the special requirements of the product consists of 4 layers of cord layer. The inner rubber is mainly from the sealing effect, in addition to the outer rubber sealing role, but also play a protective role.

Other Norgen air springs models: