The Miller Drive Roll Kit - .035 VK Groove 4 Roll (046792) is an essential component for professional welders utilizing flux-cored or metal-cored wires in high-production environments. Designed specifically for Miller's industrial-grade wire feeders and integrated MIG systems, this kit ensures consistent, slip-free wire delivery. The "VK" designation indicates a V-Knurled groove geometry. Unlike smooth V-grooves used for solid wire, or U-grooves used for soft aluminum, the knurled teeth in these rolls bite gently into the shell of tubular wires. This mechanical grip allows the feeder to push the wire through the liner and gun cable with positive force, without requiring excessive tension that could crush the hollow wire and cause feeding issues or liner clogging.
This kit is engineered for 4-roll wire drive systems, which provide superior feeding traction compared to 2-roll systems. By engaging the wire at four distinct points, the drive pressure is distributed more evenly, reducing deformation. The kit includes four matching drive rolls, ensuring that both the input and output sides of the drive assembly contribute to the feeding process. This is particularly critical when using long MIG guns or when welding in out-of-position scenarios where cable friction is higher.
The 046792 kit is designed for seamless integration with a specific range of Miller equipment. It is the correct replacement kit for the Millermatic 350 and 350P, the Millermatic 252, and the extensive line of 50 Series wire feeders (including S54A, S54D, S54M, D54A, D54D, and D54M). It also fits automatic drives such as the A1-4 and A2-4. Beyond the rolls themselves, Miller includes the necessary inlet and intermediate wire guides. Replacing these guides simultaneously with the rolls is a best practice that prevents wire shaving and ensures the wire enters the drive assembly at the perfect angle, maximizing the lifespan of your consumables.
Using genuine Miller replacement parts maintains the factory specifications of your welding equipment. These drive rolls are machined from hardened steel to resist wear from the knurling process and the abrasive nature of flux-cored wires. Proper maintenance of your wire drive system, including the installation of the correct drive rolls for your wire size (.035") and type, is the first step in achieving stable arcs and high-quality welds.
| Additional Information |
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| Packaging Description:1 Per Ea, 1of1 |
| Brand:Miller |
| Fits Which Model:Miller S64 S74 Wire Feeders, Millermatic 300 350 350P 54 24A R115 |
| Wire Type:Flux Core or Metal Core, Solid Wire |
| Wire Size:0.035 |
| 2 or 4 roll:4 roll |
| Groove Type:VK Groove (V-Knurled) |
| Compatible Series:50 Series Feeders, Millermatic 252, Millermatic 350 Series |
| Included Components:4 Drive Rolls, Inlet Wire Guide, Intermediate Wire Guide |
