Product Finder
Dual-Wheel Ground Support Casters (7700)

Capacity Range: 2000 - 8400 lbs.

 
#S-7721-SPRT Swivel
 
OPTIONAL ACCESSORIES
  • Swivel Lock - 4 position (-4SL)
  •   

       Heavy Duty Contact Brake

      

       Gray Non-marking Tires

    • Special Overall Height
     
     

    Hamilton's 7700 Series is new line of dual-wheel solid pneumatic casters designed to cushion loads while providing a carrying capacity up to 8400 lbs. per caster. The new series represents our highest rated caster series designed for heavy duty ground support and heavy manufacturing applications. The dual-wheel design essentially doubles the load capacity of Hamilton’s single wheel 7500 Series. These dual wheel casters also provide greater stability due to their much wider stance. All models have drop forged steel mounting plates and CNC machined raceways. 

    The 16", 18", and 21" wheels are comprised of three tread sections: a firm, stable base compound for strong rim adhesion; a very resilient middle section to dampen the shock of uneven rolling surfaces; and a tough low rolling resistance tread to reduce energy consumption. The result is a soft ride that compares with full pneumatic tires, but with much higher capacities than their air-filled cousins. 

    The 12" and 14" wheels are comprised of two tread sections. The same stable base found on the other wheels for strong rim adhesion combined with a tough abrasion resistant outer tread compound.

     
    QUALITY FEATURES
    • Swivel Construction
    - drop forged steel mounting plate and horn base.

    7500 Series Swivel Construction
    • Kingpin
    - integrally forged with mounting plate. 3/4" diameter on 10", 1" on 12", and 1-1/4" on 14", 16", 18", & 21".
    • Main Load Raceway
    - large diameter raceway machined for hardened and polished steel balls for the 10" & 12". The 14", 16", 18", & 21" model uses Hamilton’s HPI™ Swivel Technology.
    • Secondary Load Bearing
    - precision tapered thrust bearing counteracts radial thrust.
    • Axle
    - 1" on 10" and 12" models, 1-1/4" axle on 14", 16", 18", & 21" models.
    • Lubrication Fittings
    - Ball-check type in swivel assembly and in wheel hubs.

    Heavy Duty Dual Wheel Ground Support Series Selection Table



    3YR =Three Year Warranty appliesDimensions in inches
    WheelSwivel CasterRigid Caster

    Mounting Plate
    Nom.
    Dia. A
    Tire
    Width
    Tire
    Size
    More Information

     
    Click on the Model Number to view details about the Caster.

    Model
    Number
    MSRPWt.
    Lbs.
    More Information

     
    Click on the Model Number to view details about the Caster.

    Model
    Number
    MSRPWt.
    Lbs.
    Load
    Cap.
    Lbs.
    Overall
    Height
    B
    Size
    Holes
    1044 x 6S-7710-SPRT 3YR $59650R-7710-SPRT 3YR $51547200012 1/44 1/2 x 6 1/22 7/16 x 4 15/16
    slotted to
    3 3/8 x 5 1/4
    1242 x 8S-7712-SPRT 3YR $92388R-7712-SPRT 3YR $83260240015 1/26 1/8 x 7 1/25 3/8 x 6 1/8
    1443 x 8S-7714-SPRT 3YR $1,363114R-7714-SPRT 3YR $1,152102300017 3/88 1/2 x 8 1/27 x 7
    165 1/84 x 8S-7716-SPRT 3YR $1,243280R-7716-SPRT 3YR $1,017120480018 3/88 1/2 x 8 1/27 x 7
    185 1/85 x 8S-7718-SPRT 3YR $1,670155R-7718-SPRT 3YR $1,441143660020 5/88 1/2 x 8 1/27 x 7
    2166 x 9S-7721-SPRT 3YR $1,734185R-7721-SPRT 3YR $1,475171840024 1/28 1/2 x 8 1/27 x 7