# Hamilton

**Manufacturer:** Hamilton  
**MPN:** `R-WHK-4HMB`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Hamilton |
| Manufacturer name | Hamilton |
| Manufacturer | Hamilton |
| DimensionUnit | inch |
| GraingerSku | 55HA06 |
| Extra Product Name | Hamilton |
| UPC | None |
| UnitOfMeasure | EA |
| Weight | 9 |
| WeightUnit | lbs |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | US |
| extendedLead | 20 |
| extendedQty | -2 |
| height | 6 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 6 |
| moq | 1 |
| MPN | R-WHK-4HMB |
| multiple | 1 |
| qtyInStock | 0 |
| qtyInStockOverride | Drop Ship |
| SKU | G9071481 |
| tierMinQty1 | 1 |
| tierPrice1 | 134.13 |
| url | https://www.zoro.com/hamilton-plate-caster-400-lb-load-rating-r-whk-4hmb/i/G9071481/ |
| width | 6 |
| Caster Sub-Type | Rigid |
| Load Rating | 400 lb |
| Number of Wheels | 1 |
| Wheel Dia | 4 in |
| Wheel Width | 2 in |
| Caster Frame Material | Steel |
| Application | Aerospace Tooling, All Purpose Industrial/Commercial Casters, Automotive Assembly Lines, Body Dolly Carts, Chassis Rack Carts, Engine Dollies, Material Carts |
| Mounting Bolt Dia | 3/8 in |
| Mounting Plate Thickness | 1/4 in |
| Swivel Lock Type | No Lock Included |
| Wheel Type | Flat-Free |
| Tread | Flat |
| Caster Brake Type | No Brake Included |
| Standards | ICWM |
| Mounting Plate Size | 4 in x 4 1/2 in |
| Swivel Raceway Type | Roller |
| Wheel/Tread Hardness Rating | Extra Hard |
| Wheel Bearing Type | Precision Ball |
| For Axle Dia | 1/2 in |
| Swivel Radius | None- Rigid Caster |
| Includes Spanner Bushing | Yes |
| Load Rating Range | 300 to 999 lb |
| Number of Mounting Holes | 4 |
| Series | Inferno |
| Frame Construction | Forged |
| Leveling Caster | No |
| Mounting Plate Bolt Hole Pattern | B |
| Wheel Core Material | Cast Iron |
| Includes Thread Guards | No |
| Wheel Bearing Material | Stainless Steel |
| Wheel Core Type | Solid |
| Non-Marking | No |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G9071481 | 134.13 | 1 | None | 1 |
| Grainger | 55HA06 |  |  | None | 1 |

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Structured data: `/python/html6/product/500/219500000/219676500/part_--RWHK4HMB---Hamilton--6e4b928040.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp