Compact PU casters — double bearing.
Small wheels, serious loads: a double ball bearing swivel race lets these 40 and 50 mm PU casters carry 110 to 130 kg each — apparatus casters for instruments, cabinets and compact equipment.
Specification
| Series | Compact casters — PU wheel, double ball bearing |
|---|---|
| Wheel | Polyurethane, blue, 40–50 mm × 30 mm |
| Load capacity | 110–130 kg per caster by size — see the size table |
| Bearing | Double ball bearing swivel race |
| Configurations | Swivel, top plate or threaded stem |
| Fork finish | Dark green paint or black electrophoretic coating |
| Documentation | CE / RoHS documentation available on request — ask in the RFQ and the documents for this series accompany the quotation. |
| MOQ | Confirmed per order in the written quotation |
| Lead time | Confirmed per order in the written quotation |
Values marked as a class or target are the specification this model is quoted and sampled against. Final confirmed values are stated on the written quotation and verified on the production sample before bulk production.
Apparatus casters live in the gap between furniture wheels and industrial casters: the equipment is heavy, the mounting envelope is small, and the swivel has to stay smooth for years. This series answers with a double ball bearing race in a compact fork — the race is the part that decides whether a small caster steers or grinds after a year of dust and load.
Plate and stem builds are tabled separately — note the stem build stands slightly taller. Fork finish options are dark green paint or black electrophoretic coating, on the same dimensions.
Sizes in this series
| Build | Size | Wheel Ø × width | Load per caster | Overall height | Mounting detail |
|---|---|---|---|---|---|
| Plate | 1.6 in | 40 × 30 | 110 kg | 66 mm | Plate 70 × 53, holes 52 × 35, Ø 8.5 |
| Plate | 2 in | 50 × 30 | 130 kg | 76 mm | Plate 70 × 53, holes 52 × 35, Ø 8.5 |
| Stem | 1.6 in | 40 × 30 | 110 kg | 68 mm | Stem M10 × 25 |
| Stem | 2 in | 50 × 30 | 130 kg | 78 mm | Stem M12 × 25 |
Dimensions in millimetres unless shown otherwise. Values are the series table values; the written quotation confirms the final drawing for your size class before sampling.
Configuration options
- Two fork finishes on identical dimensions — match the caster to the equipment's colour scheme.
- Black PU wheel build on the same compact frame, quoted on request.
What the sample verifies
Before bulk production, the production sample of this series is checked against the locked specification: wheel diameter and — critically — wheel width measured, tread hardness verified where the series states it, bearing type confirmed, fork and plate dimensions measured, and load performance tested per the stated convention (EN 12532 / ANSI ICWM). The approved sample becomes the reference for the shipment, and the order carries batch traceability back to it.
Request pricing for this series
About this series
Why does the bearing race matter at this size?
Small casters turn under load constantly — repositioning a cabinet works the swivel race far more than rolling does. A double ball race keeps that turn smooth and is the difference between a five-year caster and a one-year caster at this size.
Plate or stem?
Plate where the equipment has a flat mounting face; stem where it has a threaded socket. Ratings are the same; heights differ slightly as tabled.
Need this caster under your own brand?
Private label, custom packaging and carton marks are available across the range — mention it in the RFQ and the quotation will include the branding steps.