# Standard Duty Kingpinless Caster, 4" x 2" Unilast Solid Poly Wheel, 1/2" Precision Ball Bearing

**Manufacturer:** Hamilton  
**MPN:** `S-52K-4UYB`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Hamilton |
| Manufacturer name | Hamilton |
| Manufacturer | Hamilton, Hamilton Caster & Mfg. Co. |
| CategoryId | 6740 |
| CategoryIdL1 | 14394 |
| CategoryIdL2 | 14394 |
| CategoryIdL3 | 4473 |
| CategoryIdL4 | 6740 |
| CategoryL1 | Material Handling |
| CategoryL2 | Casters & Wheels |
| CategoryL3 | Casters |
| CategoryL4 | Plate Casters |
| DimensionUnit | inch |
| GraingerSku | S-52K-4UYB |
| Extra Product Name | Standard Duty Kingpinless Caster, 4" x 2" Unilast Solid Poly Wheel, 1/2" Precision Ball Bearing |
| UPC | None |
| UnitOfMeasure | EA |
| Weight | 7, 7.1 |
| WeightUnit | lbs |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | US |
| extendedLead | 7 |
| extendedQty | -2 |
| height | 5.63 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 4.5 |
| moq | 1 |
| MPN | S-52K-4UYB |
| multiple | 1 |
| qtyInStock | 0 |
| qtyInStockOverride | Drop Ship |
| SKU | G1254458 |
| tierMinQty1 | 1 |
| tierPrice1 | 80.00 |
| url | https://www.zoro.com/hamilton-standard-duty-kingpinless-caster-4-x-2-unilast-solid-poly-wheel-12-precision-ball-bearing-s-52k-4uyb/i/G1254458/ |
| width | 4 |
| Wheel Dia | 4 |
| Wheel Width | 2 |
| Plate Size | 4 x 4 1/2 |
| Mounting Bolt Dia | 0.375 |
| Mounting Height | 5.625 |
| Caster Wheel Shape | Standard |
| Caster Wheel/Tread Material | Polyurethane |
| Load Rating | 750 |
| Number of Wheels | 1 |
| Item | Swivel Caster |
| Outside Bolt Hole Spacing | 3 x 3 |
| Frame Finish | Zinc |
| Core Color | Blue |
| Caster Core Material | Polyurethane |
| Standards | ICWM |
| Caster Temp Range | -50 to 180 deg(F) |
| Replacement Wheel | W-420-UBY-1/2 |
| Caster Wheel Bearings | Precision Ball |
| Inside Bolt Hole Spacing | 2 5/8 x 3 5/8 |
| Non-Marking | No |
| Thread Guards | No |
| Caster Frame Material | Steel |
| Caster Plate Hole Pattern | B |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G1254458 | 80.0 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/239000000/239067000/part_--S52K4UYB---Hamilton--5bce6259be.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp