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When a conveyor line, assembly table, or material-handling rack experiences jolts, vibration, or uneven loads, standard fixed casters let you down — products shift, surfaces scratch, and throughput drops. These ball transfer bearing spring shock absorber caster units are engineered for DIYers, fabricators, and light-industrial operators who need omnidirectional rolling with built-in vertical compliance to absorb impact and protect both the load and the surface beneath it.
Each unit consists of a hardened main transfer ball seated in a spring-loaded housing that compresses under load to cushion shock. The housing body is typically 30–60 mm (1.2–2.4 in) in outer diameter depending on model, with a load rating spanning 7 Kg (CY-12T) up to 30 Kg (CY-25T / CY-25TB) per unit. Bead material options — Carbon Steel, Nylon, and Stainless Steel — let you match the unit to your environment and load type. Models are available in both top-mount (T) and bottom-flange (TB) configurations.
Typical use cases include DIY conveyor roller tables for workshop material flow, gravity-feed sorting lines where shock absorption prevents product damage, and under-pallet transfer decks in light warehousing. Long-tail applications such as "spring-loaded ball transfer unit for conveyor" and "shock absorbing caster for assembly table" are exactly where these units excel.
| Models Available | CY-12T, CY-15T, CY-25T, CY-19TB, CY-25TB |
|---|---|
| Load Capacity per Unit | 7 Kg (CY-12T) / 15 Kg (CY-15T) / 19 Kg (CY-19TB) / 25 Kg (CY-25T, CY-25TB) |
| Bead Material Options | Carbon Steel / Nylon / Stainless Steel |
| Mount Type | Top-mount (T models) / Bottom flange (TB models) |
| Outer Diameter | See variant options |
| Housing Material | See variant options |
| Spring Travel (Vertical) | See variant options |
| Mounting Hole / Flange Dimensions | See variant options |
| Package Quantity | 1 Pcs / 4 Pcs |
| Weight per Unit | See variant options |
Start with your per-unit load requirement. The number in the model name indicates the approximate load rating: CY-12T handles up to 7 Kg, CY-15T up to 15 Kg, CY-19TB up to 19 Kg, and both CY-25T and CY-25TB up to 25 Kg per unit. Next, choose the mount style: T-suffix units are designed for top-mount or countersunk installation, while TB-suffix units have a bottom flange for surface bolting. Divide your total load by the number of units you plan to install to find the per-unit requirement.
Carbon Steel beads offer the highest hardness and load capacity at the lowest cost — ideal for general workshop conveyor use where corrosion is not a concern. Nylon beads are quieter, lighter, and will not scratch or mark soft surfaces such as painted panels or finished wood, making them suitable for noise-sensitive or non-marring applications. Stainless Steel beads resist rust and chemical exposure, making them the right choice for damp environments, food-adjacent workspaces, or anywhere regular washdowns occur.
The spring-loaded housing is designed to absorb repeated vertical impacts within the rated load range. The internal coil spring compresses to cushion the shock and then returns the ball to its operating height. For best longevity, avoid sustained loads that exceed the rated capacity of the selected model, and ensure the mounting surface is flat and rigid so the unit does not rock under load.
Corrosion resistance depends on the bead material you select. Stainless Steel bead variants offer the best resistance to moisture and mild chemicals. Carbon Steel variants are suitable for dry indoor environments and may benefit from periodic lubrication. Nylon bead variants are inherently non-corrosive but the housing material should also be considered — contact us to confirm housing finish details for your specific environment.
Yes — these units are a popular choice for DIY conveyor tables, gravity-feed sorting benches, and packing station inserts. Top-mount (T) models fit into drilled holes in a steel or plywood tabletop, while flange-mount (TB) models bolt directly to the surface. For a standard four-corner table cluster, the 4-piece set option provides the most economical way to equip a single station.
The 1-piece option is ideal for replacement of a single worn unit, prototyping a new conveyor layout, or applications where only one or two units are needed. The 4-piece set is the better value when equipping a full conveyor corner, a four-point transfer deck, or any installation requiring multiple identical units — the per-unit cost is lower and you receive all units in a single shipment.
Mounting dimensions vary by model. T-suffix models require a countersunk or through-hole in the mounting surface sized to the unit's body diameter; TB-suffix models require a flat surface with bolt holes matching the flange pattern. Please refer to the variant options or contact us to confirm the exact hole diameter, flange bolt-circle dimensions, and recommended panel thickness for your chosen model before drilling.
