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Select Part Number for Full Details. |
Type: Single Convolute | |
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Part
Number |
Top Plate
Hole/Stud
Qty. |
Bottom
Plate
Hole/Stud
Qty. |
Top
Plate
Dia. |
Bottom
Plate
Dia. |
Collapsed
Height |
Flexmember |
Piston |
Piston
Type |
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3 |
2 |
9.00 |
9.00 |
2.60 |
578-91-3-301 |
— |
— |
|
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3 |
2 |
9.00 |
9.00 |
2.60 |
578-91-3-301 |
— |
— |
|
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5 |
4 |
11.30 |
11.30 |
2.30 |
578-91-3-352 |
— |
— |
|
|
5 |
4 |
11.30 |
11.30 |
2.50 |
578-91-3-351 |
— |
— |
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|
5 |
4 |
11.30 |
11.30 |
4.18 |
578-91-3-351 |
— | | |
Extended-Air Air Springs
The bellows of Goodyear Extend-Air air springs are built to better withstand the extreme pressures for lift axle applications - pressures that often spell downtime with lesser springs.
When actuator tests were performed on standard convolution springs, turn-up faliure occured at approximately 10,000 cycles. The new Extend-Air bellows air spring has been run over 400,000 cycles without signs of cracking.
By virtually eliminating the problem of turn up cracking, Extend-Air bellows air springs greatly reduce the occurance of truck and trailer downtime. Extend-Air also prevents debris from lodging inside a turn-up opening, which can cause cord abrasion and early failure.
Extreme load pressures can often cause turn-up problems. Over time, a turn-up will seperate from the surface of the flex member, causing a circumferential crack. The result is expensive down time.
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