B1401-761-000 Needle Bar for Juki 761 Buttonhole Machine

The B1401-761-000 Needle Bar is designed for industrial buttonhole machines that require precise, stable needle movement during repeated sewing cycles. Its hardened and polished steel construction supports accurate reciprocating travel while the precision needle-clamp fitting helps maintain correct needle positioning.

Key Features

• Precision-machined needle bar for accurate reciprocating movement.
• Hardened steel construction for resistance to operational wear.
• Polished surface helps reduce friction inside the needle-bar bushings.
• Precision needle-clamp fitting supports secure needle positioning.
• Designed for stable needle travel during high-speed buttonhole sewing.
• Suitable for continuous industrial sewing applications.
• Direct factory-fit replacement for compatible 761/771/781-style machines.
• Supplied as 1 piece.

Use Cases

This needle bar is suitable for industrial buttonhole machines used in:

• Garment manufacturing factories
• Shirt and blouse production
• Trouser and uniform production
• Formalwear manufacturing
• Boutique tailoring
• Professional tailor shops
• Industrial machine servicing
• Replacement of worn or damaged needle bars

Benefits

Accurate Needle Movement

The precision-machined design supports straight reciprocating needle travel, helping maintain consistent needle positioning during the buttonhole cycle.

Reduced Mechanical Friction

The smooth ground surface is designed to work smoothly within the needle-bar bushing, helping reduce unnecessary drag during repeated machine operation.

Durable Steel Construction

Heat-treated steel provides a hard working surface designed to withstand repeated movement and mechanical loading in industrial sewing applications.

Secure Needle Holding

The precision needle-clamp area provides the required interface for firmly securing the needle while maintaining the correct position for sewing.

Direct Replacement

The component is manufactured to the stated factory dimensions for compatible 761, 771, and 781-style buttonhole machine frames, making it suitable as a replacement for a worn needle bar.

Machine Compatibility

This is a machine-specific industrial buttonhole needle bar compatible with:

Part Number: B1401-761-000 / B1401761000

Specifications

How To Use

First, switch off and disconnect the buttonhole machine before accessing the needle-bar mechanism.

Next, remove the needle and release the existing needle bar from its mounting and connecting mechanism, following the machine’s service procedure.

Then, install the B1401-761-000 needle bar in the correct orientation and secure the connecting and needle-clamp components.

Finally, rotate the machine manually to check needle travel and clearance, then install the needle and perform a test buttonhole before returning the machine to production.

FAQs

What is the B1401-761-000 needle bar used for?

The B1401-761-000 is the reciprocating needle-bar component for compatible industrial buttonhole machines. It holds the needle assembly and guides its vertical movement through the sewing cycle. Correct needle-bar positioning is important because the needle must maintain proper alignment with the looper, work clamp, and other machine mechanisms.

Is B1401-761-000 compatible with Juki LBH-761?

Yes. The supplied compatibility information lists the Juki LBH-761 as a compatible machine. It is also specified for LBH-762, LBH-771, LBH-772, LBH-781, LBH-782, and LBH-783 series machines. Match the existing needle bar and part number before ordering to confirm the correct replacement.

Does this needle bar fit Juki LBH-771?

Yes. B1401-761-000 is specified for the Juki LBH-771. The needle bar is responsible for controlled reciprocating needle movement, so correct installation and adjustment are important. After replacement, manually check needle travel and clearance before operating the machine at production speed.

Can it be used on Jack JK-T781?

Yes. This needle bar is specified for the Jack JK-T781 and compatible 761/781-style industrial buttonhole machines. Because clone machines may differ in individual mechanical configurations, compare the existing component, mounting arrangement, and part number before ordering.

What happens if the needle bar is worn or bent?

A worn or bent needle bar can affect needle alignment and movement, potentially contributing to needle deflection, inconsistent stitching, needle contact, or breakage. These symptoms can also originate from incorrect timing, a damaged needle, or other mechanical components, so the complete needle area should be inspected before replacement.

Is the needle bar made for continuous factory use?

Yes. The supplied specification identifies heat-treated steel construction intended for repeated industrial operation. Its smooth surface is designed to reduce friction during reciprocating movement inside the needle-bar bushing. Proper lubrication and machine adjustment remain important for maintaining the mechanism during continuous production.

Does this product include the needle?

No. This listing is for 1 piece of the B1401-761-000 needle bar. The needle is a separate consumable component and is not included unless specifically stated in the product listing.

How do I install the B1401-761-000?

First, switch off the machine. Next, remove the needle and existing needle bar according to the machine’s service procedure. Then, install the replacement in the correct orientation and reconnect the relevant mechanical components. Finally, manually check needle movement and clearance before sewing a test buttonhole.

Does the needle bar need timing adjustment after replacement?

The needle bar itself does not replace the machine’s complete timing system, but its position can affect the needle’s relationship with other sewing mechanisms. After replacement, the needle stroke, height, and clearance should be checked according to the machine’s adjustment procedure before production operation.

How can I confirm this is the correct needle bar?

Check your machine model and compare the existing needle bar with the B1401-761-000 / B1401761000 part number. Physical dimensions, mounting points, needle-clamp arrangement, and overall shape should also match. This is especially important when replacing parts on compatible clone-brand buttonhole machines.