Cones, collets, spacers and pin plates all help mount wheels on a balancer, but they solve different centering problems. Start with the exact balancer and wheel-center design, then match the documented hardware instead of treating every same-size cone as interchangeable.
A wheel balancer cone is a centering tool. Its job is to locate the wheel on the balancer shaft through the wheel's center bore. A collet does the same basic job with a lower-taper shape that can contact more of the actual bore on some modern wheels. Pin plates and flange plates solve a different problem: they can help center wheels that are better located by their lug pattern rather than by a conventional cone.
Those parts are not automatically interchangeable. Before ordering, confirm the balancer model, shaft system, center-bore range and any pressure cup, spacer, flange plate or clamping hardware the manufacturer requires with the centering part.
Coats lists 85609499 as an included double-sided collet kit for the ProBalance E900. The current catalog gives the kit a combined center-bore range of 2.04 to 5.20 inches (52 to 132 mm) and identifies it as 40 mm-shaft hardware.
What to check: do not replace that documented E900 setup with an unrelated 40 mm cone set just because the shaft diameter matches.
Hunter's wheel-balancer accessory guide explains that its direct-fit dual-taper collets are intended to contact the actual hub bore more effectively on wheel designs where a conventional high-taper cone can bottom on the outer chamfer. Hunter publishes kit 20-3062-1 plus individual collets with stated bore ranges.
What to check: the collet still needs the correct clamping setup for the wheel and balancer; a collet is not a universal replacement for every cone or flange plate.
Atlas sells ATEATWB-LTA for 40 mm balancer shafts. The set contains a large steel cone and spacer for wheels whose center holes are larger than the standard Atlas cone set can cover.
What to check: Atlas publishes the shaft requirement, but exact balancer and wheel capacity still need to be checked separately before treating the adapter as a complete truck-balancing solution.
Ranger part 5150555 is a 36 mm-shaft truck cone/spacer kit, while 5150032 is a 40 mm-shaft double-sided collet/spacer kit. Both cover large truck hub openings, but the shaft requirements are different.
What to check: never substitute one for the other by appearance. Ranger's current DST2420X information also contains a shaft-versus-accessory inconsistency discussed on the truck adapter guide.
A tapered cone centers a hub-centric wheel through the bore. It is common and quick, but the cone must contact the correct part of the bore rather than bottoming on a decorative chamfer or cap area.
A collet uses a shallower taper and more direct bore contact. It can improve centering on wheels where a conventional cone does not seat at the true locating surface.
Some lug-centric wheels need a plate or pin arrangement that references the lug pattern. That is a separate mounting method, not simply a larger cone.
Large-bore truck wheels can require both a larger centering cone and a spacer/backing plate so the wheel clears the machine and clamps correctly.
If you are still choosing a balancer, compare its published shaft, wheel-capacity and accessory support first. If you already own the balancer, use the manufacturer part number and wheel-center information rather than shopping by shaft diameter alone.
Marketplace cone kits are useful only after you confirm the balancer shaft and the wheel-center range you need.
Both center a wheel through its bore, but a conventional cone uses a steeper taper while a direct-fit or low-taper collet can contact more of the actual bore. The correct choice depends on the wheel and the balancer mounting system.
No. Shaft diameter is only one requirement. The cone or collet range, thread and clamping arrangement, pressure cup or spacer, wheel mounting method and manufacturer compatibility also matter.
No. The adapter can help center a larger-bore wheel, but the balancer still has its own published wheel-weight, diameter, width and application limits.
A lug-centric wheel may be better centered from its lug pattern when the center bore is not the wheel’s true locating feature. Use the balancer manufacturer’s documented pin or flange-plate method rather than improvising a cone setup.