Air Spring Rolling Lobe 9" Top x 10.24" Bottom Dia Plastic - 566.ER9978

Part#: AAA5019978

Features and Benefits

  • Rolling lobe type with plastic bottom plate for smooth response and lightweight axle contact
  • 7.8" compressed height for a compact, stable profile during full suspension compression
  • 5600 lbs load at 80 PSI and 7100 lbs at 100 PSI for rated load support across pressures
  • 11.5" design height with 9" top plate and 5.5" center-to-center for precise frame alignment
  • 74 CPM natural frequency with 2 top and 1 bottom stud for controlled suspension isolation
  • 19.6" extended height and 12.6" maximum diameter for broad suspension travel and load coverage

Warranty

Warranty Up to 3 years warranty

Please contact customer service to know more details

TypeRolling Lobe
Load (Lbs) @80 PSI5600
Load (Lbs) @100 PSI7100
Natural Frequency (CPM)74
Design Height11.5 in.
Bottom Plate TypePlastic
Top Plate Hole/Stud Quantity2
Top Plate Diameter9 in.
Top Plate Center to Center Diameter5.5 in.
Bottom Plate Hole/Stud Quantity1
Bottom Plate Diameter10.24 in.
Compressed Height7.8 in.
Extended Height19.6 in.
Maximum Diameter12.6 in.
Extended Height18.in. (19.6 in. max)
Compressed Height7.80-7.9 in.
Bottom Plate Diameter10.16-10.25 in.
Interchange
1R121179
3529978
67588
69744
8465
91014A959
91014P959
9978
AB1DK231P959
AB1DK23IA959
AS8959
AS9978
C28929
HDV9978
S28929
S29928
W013589978
WA019978C
The Air Spring rolling lobe design provides dependable suspension support with a maximum diameter of 12.6", suited for Heavy Duty commercial vehicle applications. Engineered for consistent load bearing and smooth ride quality across a wide range of trailer and chassis configurations.
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