Upper Shaft Assembly – Part #XE3702102 | Brother PR & Baby Lock Multi-Needle

Restore smooth, precise machine operation with this Upper Shaft Assembly (Part #XE3702102), designed for Brother PR series and Baby Lock multi-needle embroidery machines.

The upper shaft is a critical internal drive component, responsible for synchronizing needle movement, hook timing, and overall machine operation. This assembly ensures accurate mechanical timing and smooth rotation, making it essential for maintaining stitch quality, embroidery precision, and machine reliability.

Built to OEM specifications, this replacement is ideal for repairing worn, damaged, or noisy machines.

Key Features:

• ✔️ OEM-compatible upper shaft assembly
• ✔️ Maintains precise machine timing and synchronization
• ✔️ Ensures smooth rotational movement
• ✔️ Critical for embroidery accuracy and stitch consistency
• ✔️ Durable construction for long-term reliability
• ✔️ Ideal for major repairs and rebuilds

Compatibility

Fits Baby Lock Multi-Needle Embroidery Machines:

BMVT10 (Valiant)
BMY6 (Array)
BND9 (Endurance)
BNT10, BNT10L (Enterprise / Venture)
EMP6 (Embroidery Pro)

Fits Brother PR Series Multi-Needle Machines:

PR600, PR600II, PR600IIC, PR600C
PR620, PR620C
PR650E
PR680W
PR1000, PR1000E
PR1055X

Alternate Part Numbers

XC5595051, XC5595251, XC5595451
XE3702001, XE3702101, XE3702202, XE3702302

Why This Part Matters

A worn or damaged upper shaft can cause:

• Loss of timing between needle and hook
• Skipped stitches or thread breakage
• Increased vibration or noise
• Poor embroidery accuracy
• Complete machine malfunction

Replacing this assembly restores proper timing, smooth operation, and professional-level performance.

FAQ

Q: What does the upper shaft assembly do?
A: It drives and synchronizes key internal components, including the needle bar and hook system, ensuring proper timing.

Q: Is this an OEM part?
A: This is a high-quality OEM-compatible replacement, designed to meet original specifications.

Q: Is this a beginner repair?
A: No — this is an advanced repair component typically installed by technicians or experienced users.