Casters Rollability Chart

Sustained Rolling Force is the number of pounds of force that needs to be applied to keep the unit rolling. Breakaway Force is the number of pounds of force that needs to be applied to start the unit rolling.

    Wheel Type Wheel Size Sustained Rolling Force Breakaway Force
    Advanced Elastomer AE 6x2 3.5 7
    Polyolefin PBPW 6x2 3.4 6.8
    Hard Rubber HR 6x2 1.2 2.4
    Phenolic Resin PH 6x2 1 2
    Reinforced Thermoplastic RT 6x2 1.2 2.4
    Cast Iron SS 6x2 0.8 1.6
    V-Grooved VG 11 11 11
    FW Flanged FW 11 11 11
    Grey Iron Gl 6x2 0.8 1.6
    Heavy Duty Ductile Iron HO 6x2 0.7 1.4
    Forged Steel FS 6x2 0.7 1.4
    Full-Pnuematic Wheel Assemblies PN 6x2 6.5 13
    Semi-Pnuematic Wheels SN 6x2 6 12
    Soft Rubber SR 6x2 12 24
    Mold-On Rubber MR 6x2 11.2 22.4
    Solid Urethane SP 6x2 9.5 19
    Polyurethane Iron Core PI 6x2 6.2 13.5
    Polyurethane Severe Duty PS 6x2 7 14
    Solid Urethane KJ 6x2 5.1 10.2
    Polyurethane on Polyolefin PP 6x2 7.2 14.4
    Polyurethane Aluminum Core PA 6x2 6.5 13
    Note: Based on 500 lbs. per wheel. Wheels have roller bearings.

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