Long Milling Arbors
Product Code : LSK-MMTM-10611
Long Milling Arbors (SKU LSK-MMTM-10611), often shortened to LM arbors, are cutter-carrying shafts for horizontal and universal milling machines, held in the spindle by a drawbar and supported at the outer end by bearing bushes in the overarm brackets. They are used in machinist and tool-room training at ITI centres, polytechnics, engineering colleges and TVET institutes. Science Lab Supplies supplies these arbors from Ambala, India to institutes, contractors and distributors.
Specifications
The arbors are made of forged manganese-chromium alloy steel hardened to 58-62 HRC and are built to withstand wear and heavy cutter loads. Spacers position the cutters along the arbor, and concentricity is held to 0.015-0.030 mm. Taper, length and end thread are chosen to suit the machine spindle.
| Parameter | Value |
|---|---|
| SKU | LSK-MMTM-10611 |
| Material | Forged manganese-chromium alloy steel |
| Hardness | 58-62 HRC |
| Taper options | Size 30, 40 and 50 tapers; BT and Morse taper also available |
| Length | Chosen to suit the machine and its brackets (from 100 mm) |
| End thread | RH as standard; LH on request |
| Concentricity | 0.015-0.030 mm |
| Fixing | Drawbar in the spindle; bearing bushes in the overarm brackets |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Long Milling Arbors
These arbors mount milling cutters on horizontal and universal milling machines. In training they are used for straddle, gang and slab milling, where one or more cutters are spaced along the arbor and the outer bush keeps the long shaft rigid under load.
- ITI Machinist trade: slab, straddle and gang milling setups on a horizontal machine.
- Tool and Die Maker training: setting cutter positions with spacers.
- TVET machining modules: arbor selection, fitting and drawbar tightening.
- Diploma and B.Tech workshop technology: horizontal milling demonstrations.
Select the thread against spindle rotation so it does not loosen: LH threads for clockwise rotation and RH threads for anticlockwise. Shorter arbors give better performance where the brackets allow.
Standard Scope of Supply
A full set of Long Milling Arbors comprises the arbor with its bearing bushes, spacers, nut and keys. To order the right arbor, state the taper, the length the machine brackets allow, and the end thread (RH or LH) required for your spindle rotation.
Packing, MOQ and Lead Time
A quotation can be prepared for a single arbor set or several sets in different tapers and lengths. It lists packing, delivery time and price for each, and cutters or other vocational training equipment can be added to it.
With an Importer-Exporter Code, Science Lab Supplies is a registered exporter that can ship to buyers in Saudi Arabia, Oman, the Philippines, Nepal, Bangladesh and Zambia. Give us the spindle taper and length on the contact page, use the enquiry cart for a multi-item list, or refer to the lab tender page.
Frequently Asked Questions
What comes in a full set?
A full set has the arbor with bearing bushes, spacers, a nut and keys, so cutters can be positioned and the outer end supported in the machine brackets.
Which taper should I order?
Choose the taper from your machine's spindle specification. The arbors come in size 30, 40 and 50 tapers, and BT and Morse tapers are also available.
Who supplies the Long Milling Arbors?
Science Lab Supplies supplies them from Ambala, India, to training institutes, colleges and workshop contractors, matched to the taper and length each machine needs.
Related Milling Equipment
Long arbors are used on horizontal and universal milling machines, often with a dividing head for gear work. These four items complete that milling setup and can be quoted together with the arbors for a machinist training section.
- Milling Arbor — application-based arbor in SS or MS.
- Universal Milling Machine — horizontal machine with swivelling table.
- Universal Dividing Head — indexes work for gang or gear cutting.
- Tilting and Swiveling Vice — workholding for angled cuts.
Browse the full Metal Manufacturing Training Machine range or all TVET lab equipment.
Last updated: 25 September 2026
