Providing highly adaptable mounting for institutional carts and specialized tubular frames, our 31-50 kg (68-110 lbs) bolt hole casters are the perfect solution when standard plates are too wide. The hollow kingpin design allows you to utilize a custom-length, high-tensile bolt, ensuring a rock-solid, through-hole connection regardless of your equipment's material thickness. To prevent the wheel jamming that frequently shears mounting hardware under heavier loads, this series is manufactured strictly in robust sizes of 2 inches and above. Achieve a tailored, wobble-free installation with superior rolling performance. Can’t find what you need? Contact us for guidance.