3B12-300 this kind of air spring is produced by goodyear,we imported it from goodyear factory.

3B12-300 Goodyear air spring. Super-Cushion® air springs bring new high productivity and long life to your trucks, trailers, buses and industrial equipment and lifting equipment. Bellows air springs provide a constant level of traction and provide trouble-free service.

The 3B12-300 Goodyear air spring rubber airbag can protect the cargo and provide horizontal transportation and long-term service. Rubber airbag air springs provide quiet, cushioned driving, and because of less vibration, they have a longer service life than steel springs. The driver is more comfortable when riding, less fatigued, and stay alert. 3B12-300 enables industrial vibration equipment to reduce vibration and noise pollution. In addition, 3B12-300 goods have better shock and vibration resistance.

Manufacturer: Goodyear
Brand name: Goodyear
Product weight: 7.5 kilograms
Package size: 33 x 33 x 22 cm
Model: 3B12-300

2B12-300 Goodyear Cross OEM

Goodyear Parts NO.:2B12-300 ;
Goodyear Parts NO.:2B12 300;
Goodyear Parts NO.:2B12300;
Goodyear Flexmember Parts NO.:578933100
Goodyear Flexmember Parts NO.:578 93 3 100
Goodyear Flexmember Parts NO.:578-93-3-100

Firestone Parts NO.:W01-358-8008

Firestone Parts NO.::W01 358 8008

Firestone Parts NO.::W013588008
Firestone Parts NO.:W01-358-8025

Firestone Parts NO.::W01 358 8025
Firestone Parts NO.::W013588025

Flexible members: 578-93-3-100
piston:
Piston type:-
Goodyear Trim: 3B12300

Triangle spring: 4431
Triangle spring: 4469
Firestone: 8008
Firestone: 8025
By E-Z: 8030155
Neway: 57008008
Reedwell: 1003588008C
batco: 10-98008
UCF / Impex: AB-3B12-300
T.W. Distribution: AB8008
Ultraman: ABSP3B22R-8008
Watson & Chalin: AS0019
Dallas Spring: AS8008
Midland / Haldex: CS312300
Euclidean/Meritor Aftermarket: E-FS8008
Euclidean/Meritor Aftermarket: E-FS8025
Euclid / Meritor Aftermarket: FS8008
Euclid / Meritor Aftermarket: FS8025
Kangdi Technology: FT330-29431
Kangdi Technology: FT330-29469
BWP: M-3553
Leland: SC2130

3B12-300 Goodyear Technical parameters

Nut / Blind Nut

Top Cover Plate Screw (Nut) Tooth : 1 pcs X 3/8-16UNC

Top Cover Plate Screw (Nut) Tooth : 1 pcs X Stud - 3/4-16

Screw Center Distance of Top Cover Plate : 140 mm

Bottom Cover Plate Screw (Nut) Tooth : 2 pcs X 3/8-16UNC

Screw Center Distance of Bottom Cover Plate : 157.5 mm

Gas Hole / Air inlet / Air Fitting

Gas Hole / Air inlet : 1/4-18NPTF

Screw Center Distance Between Gas Hole and Nut : 73 mm

Cover Plate

Top Cover Plate Diameter: 228.6 mm

Bottom Cover Plate Diameter: 228.6 mm

Rubber Bellows

Rubber Bellows MAX Diameter: 330 mm

Rubber Bellows Natural Diameter : 300 mm

The Working Stroke : MIN 120 mm to MAX 457 mm

Maximum Height : 457 mm

Minimum Height :120 mm

Stroke Height : 179mm

Bumper block / Buffer block

Without Bumper Block

Girdle Hoop / Girdle Ring

With Girdle Hoop :One Pieces of Girdle Hoop

Roof hole/stud: 2
Floor hole/stud: 2
Top plate diameter: 9
Base plate diameter: 9
Collapse height: 5.1