Value Collection 219-9446 Milling Machine Arbor NMTB40

Product Description

The VALUE COLLECTION 219-9446 is a Style B milling machine arbor with an NMTB40 taper shank, designed for use in horizontal and vertical milling operations. The arbor features a 1.25-inch diameter and an overall length of 25.43 inches, making it suitable for standard arbor-style milling setups. The drawbar thread size is 1-8, and the unit ships with one arbor spacer and one running bushing. This component is installed by machinists and tool-and-die professionals working with NMTB40-compatible milling machines.

This arbor is intended for use in machine shops and manufacturing environments where NMTB40 spindle tooling is standard. It supports face milling, slab milling, and similar operations where a rigid, accurately dimensioned arbor is required. The 20-inch shoulder-to-nut length provides extended reach for wide-face milling work. The included 1-7/8-inch bushing with a 3.125-inch length supports proper arbor alignment during operation.

Key Features

• Style B arbor configuration with NMTB40 taper shank for positive spindle engagement
• 1.25-inch arbor diameter for standard milling cutter bore sizes
• 25.43-inch overall length for extended milling setups
• 20-inch shoulder-to-nut length accommodates wide cutter stacks
• 1-8 drawbar thread for secure spindle retention
• Includes one arbor spacer and one 1-7/8-inch running bushing

Compatibility

Designed as an OEM-style replacement or direct-fit arbor for milling machines equipped with an NMTB40 taper spindle and a 1-8 drawbar thread.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer's spindle tooling procedures. De-energize the machine and engage the spindle lock before seating or removing the arbor. Inspect the spindle taper and arbor shank for burrs or contamination before installation. Torque the drawbar to the machine manufacturer's specification using the published value for the specific machine model in use.