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JACOBSBridgeport-Taper to Jacobs-Taper Arbors

JACOBS Bridgeport-Taper to Jacobs-Taper Arbor, R8 to JT33

The JACOBS Drill Chuck Arbor: R8 to JT33 (MPN 7343N) is a Bridgeport-Taper to Jacobs-Taper Arbor. This product is manufactured by JACOBS and is identified by the manufacturer part number 7343N.

SKU 3G-OTH-209113

Also listed as: 7343 N · 7343-N

Brand
JACOBS
Item
Bridgeport-Taper to Jacobs-Taper Arbor, R8 to JT33
Part Number
7343N
Category
Bridgeport-Taper to Jacobs-Taper Arbors
Available to Order
Also known as:7343NJACOBS
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
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Technical Specifications

JACOBS
Manufacturer Part Number
7343N

Technical Documents

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JACOBS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The JACOBS Drill Chuck Arbor: R8 to JT33 (MPN 7343N) is a Bridgeport-Taper to Jacobs-Taper Arbor. This product is manufactured by JACOBS and is identified by the manufacturer part number 7343N.

Frequently Asked Questions

What is the JACOBS Drill Chuck Arbor R8 to JT33 used for?

The JACOBS Drill Chuck Arbor R8 to JT33 (MPN 7343N) adapts a Bridgeport-taper spindle to a Jacobs-taper drill chuck. It is used in milling machines and drill presses to securely mount a Jacobs-taper chuck, enabling precise drilling operations in metalworking and machining applications.

What are the specifications of the JACOBS 7343N arbor?

The JACOBS 7343N arbor has an R8 shank (Bridgeport taper) on one end and a JT33 (Jacobs taper) on the other. It is manufactured by JACOBS under part number 7343N. This arbor is designed for use with Jacobs-taper drill chucks in milling machine spindles.

Where to buy the JACOBS 7343N arbor worldwide?

3G Electric supplies the JACOBS 7343N arbor worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this Bridgeport-to-Jacobs taper arbor.

How to select the correct Jacobs taper arbor for a Bridgeport mill?

To select the correct arbor, match the spindle taper (e.g., R8 for Bridgeport) to the chuck taper (e.g., JT33 for Jacobs). The JACOBS 7343N arbor combines R8 and JT33 tapers. Verify your chuck's Jacobs taper number and spindle type before ordering to ensure proper fit and runout accuracy.

Used in

Common applications for JACOBS
Metalworking job shops — JACOBS MT3 to MT3 Morse taper extension (30450DN) for extending reach when drilling deep holes on a milling machine.
Automotive engine rebuilding — JACOBS MT2 to MT2 Morse taper extension (30446N) used in a drill press to adapt short tooling for cylinder head work.
Aerospace component manufacturing — JACOBS MT4 to MT5 Morse taper extension socket (30455DN) to adapt MT4 tooling to an MT5 spindle on a large machining center.
General maintenance and repair — JACOBS MT3 to MT2 Morse taper extension (30447DN) for adapting MT2 shank tools to an MT3 spindle in a maintenance workshop.
Tool rooms and die maintenance — JACOBS MT5 to MT4 Morse taper extension (30454N) to reduce from MT5 spindle to MT4 tooling for precision reaming operations.
Heavy equipment repair — JACOBS MT3 to MT4 Morse taper extension (30452N) used in a radial arm drill to adapt MT3 tools to an MT4 spindle for large hole drilling.
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JACOBS Products

3G Electric supplies JACOBS bridgeport-taper to jacobs-taper arbors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
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This arbor connects a 3/4-inch straight shank to a JT2 Jacobs taper. It is used to mount a drill chuck onto a machine spindle in industrial drilling applications, providing secure tool holding for precision drilling operations
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This arbor converts a Morse Taper #5 (MT5) male shank to a Jacobs Taper #3 (JT3) female bore, allowing a Jacobs-taper drill chuck to be mounted on a machine spindle with a Morse-taper socket. It is used in drill presses, lathes, and milling machines for secure chuck attachment
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Adapter for connecting a drill chuck with a Jacobs taper size 2 (JT2) to a machine spindle with a Morse taper size 4 (MT4). Used in drilling applications on lathes, milling machines, and drill presses to enable secure chuck mounting
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This arbor adapts a drill chuck with a JT5 Jacobs taper to a machine spindle with an MT4 Morse taper. It provides a secure interface for mounting Jacobs-taper chucks on Morse-taper spindles in drilling applications

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