45SeriesKingpinless Casters

CasterHQ · 2" wide · zinc, forged steel

Kingpinless swivel with a sealed, induction-hardened raceway for shock loads and tow lines. Up to 2,000 lb.

Wheel sizes
4, 5, 6, 8"
Per caster
300–2,000 lb
Overall height
5-5/8 to 9-1/2"
Top plate (in.)
4 x 4-1/2
4-1/2 x 6-1/4
Finish
Zinc, forged steel

Sold as Swivel, side brake, rigid. Top plate mount.

45 Series Kingpinless Casters

Four taps

Build your caster.

Wheel size

Wheel

    22 products

    Questions, answered with the numbers.

    The 45 Series is CasterHQ's 2 in. wide kingpinless caster: no kingpin bolt to work loose, a sealed induction-hardened raceway, and a forged steel swivel rated 300 to 2,000 lb per caster with 4, 5, 6 and 8 in. wheels. It uses the same 4 x 4-1/2 in. top plate and wheel sizes as the 34 Series, with a larger 4-1/2 x 6-1/4 in. plate as an option on every listing, so it is the upgrade for shock loads, tow lines and abusive floors. Sold as swivel, swivel with side brake or rigid in twenty-two wheel materials.

    What is a 45 Series caster?

    The 45 Series is CasterHQ's kingpinless caster: 2 in. wide wheels in 4, 5, 6 and 8 in. diameters, rated 300 to 2,000 lb per caster. Kingpinless swivel with a sealed, induction-hardened raceway for shock loads and tow lines. Up to 2,000 lb. Sold as swivel, side brake and rigid. Top plate 4 x 4-1/2 in. or 4-1/2 x 6-1/4 in. Finish: zinc, forged steel.

    What plate size and bolt pattern does the 45 Series use?

    The 45 Series mounts on 2 plate sizes. 4 x 4-1/2 in. plate: bolt hole spacing 2-5/8 x 3-5/8 to 3 x 3 in., 3/8 in. bolts. 4-1/2 x 6-1/4 in. plate: bolt hole spacing 2-7/16 x 4-15/16 to 3-3/8 x 5-1/4 in., 1/2 in. bolts, offered as the Plate size option on every 45 Series listing. The holes are slotted, so measure your old plate center to center and match the spacing, not just the plate outline.

    How much weight can a 45 Series caster carry?

    300 to 2,000 lb per caster, depending on wheel diameter and material. By wheel size: 4 in. wheels 300 to 1,500 lb; 5 in. wheels 350 to 1,500 lb; 6 in. wheels 500 to 2,000 lb; 8 in. wheels 600 to 2,000 lb. To size a cart, divide the total weight (cart plus load) by one less than the number of casters, then choose a caster rated at or above that figure.

    How tall is a 45 Series caster?

    Overall height, floor to top of plate: 4 in. wheel 5-5/8 in.; 5 in. wheel 6-1/2 in.; 6 in. wheel 7-1/2 in.; 8 in. wheel 9-1/2 in.

    Which wheel materials come in the 45 Series?

    22 wheel materials: Thermoplastic rubber, crowned donut tread; Ductile steel; Duratek high-tech rubber, crowned donut tread; Sirius heavy-duty donut polyurethane on aluminum core; Heavy-duty polyolefin; Heavy-duty solid polyurethane on glass-filled nylon core; Glass-filled nylon; Polyurethane tread on glass-filled nylon core; Nylon; Phenolic resin; Polyolefin; Duratek high-tech rubber; Duratough polyurethane on polyolefin core; Polyurethane tread on steel core; Rubber tread on glass-filled nylon core; Mold-on rubber tread on steel core; Solid polyurethane; Semi-steel (cast iron); High-temperature glass-filled nylon; High-temperature phenolic; Thermoplastic rubber; Polyurethane tread on aluminum core. Every material is a separate listing with its own photo, capacity and price.

    Does the 45 Series come with a brake?

    Yes. Swivel 45 Series casters are available with a side brake: a steel lever on the side of the fork that you step down to lock the wheel and lift to release (also called a top lock brake). Rigid casters have no brake.

    What is the swivel radius, axle size and bearing of the 45 Series?

    Swivel radius: 4 in. wheel 3-1/8 in.; 5 in. wheel 3-3/4 in.; 6 in. wheel 4-1/2 in.; 8 in. wheel 6-3/4 in. Axle diameter 1/2 in. Bearings: 3/4 in. roller with spanner bushing, Plain bore with bushing and Precision ball.

    What warranty does the 45 Series carry?

    45 Series casters carry a 1 year warranty against defects in materials and workmanship from the date of purchase. Normal wear, overloading, misuse and improper installation are not covered. Returns are accepted within 30 days of delivery.

    What is the difference between the 45 Series and the 34 Series?

    Compared with the 45 Series, the 34 Series is the same 2 in. wide caster with a riveted kingpin swivel, rated up to 1,250 lb per caster, at a lower price for everyday shop use.