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Discussion History

Upper Thread Path

Assembly

Everything from the spool to the needle eye: tension, take-up, guides, and the needle bar. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Upper Thread Path parts and their functions

7 top-level parts · 18 parts in total · full bill of materials below
Upper Thread Path parts diagram: 1 needle bar, 2 needle, 3 take-up lever, 4 tension assembly, 5 thread guide, 6 check spring, 7 thread stand. 18 parts in 7 top-level items.
Upper Thread Path parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Needle Bar 4 parts 1× Reciprocating needle bar
2 Needle 1× DBx1 needle
3 Take-up Lever 1× Thread take-up lever
4 Tension Assembly 4 parts 1× Disc tension assembly
5 Thread Guide 4× Thread guides
6 Check Spring 1× Check spring
7 Thread Stand 1× Spool thread stand

3D model

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Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
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Bill of materials for Upper Thread Path

7 top-level lines · 15 rows shown · 18 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Needle Bar 4 parts single-needle-lockstitch-machine-needle-bar 1× 1 5 assembly
1.1 Needle Bar Rod single-needle-lockstitch-machine-needle-bar-rod 1× 1 · part
1.2 Needle Clamp single-needle-lockstitch-machine-needle-clamp 1× 1 · part
1.3 Needle Bar Crank single-needle-lockstitch-machine-crank 1× 1 · part
1.4 Needle Bar Bushing single-needle-lockstitch-machine-bar-bushing 2× 2 · part
2 Needle single-needle-lockstitch-machine-needle 1× 1 · part
3 Take-up Lever single-needle-lockstitch-machine-takeup-lever 1× 1 · part
4 Tension Assembly 4 parts single-needle-lockstitch-machine-tension-assy 1× 1 5 assembly
4.1 Tension Disc single-needle-lockstitch-machine-tension-disc 2× 2 · part
4.2 Tension Nut single-needle-lockstitch-machine-tension-nut 1× 1 · part
4.3 Tension Release Pin single-needle-lockstitch-machine-release-pin 1× 1 · part
4.4 Coil Spring coil-spring 1× 1 · part
5 Thread Guide single-needle-lockstitch-machine-thread-guide 4× 4 · part
6 Check Spring single-needle-lockstitch-machine-check-spring 1× 1 · part
7 Thread Stand single-needle-lockstitch-machine-thread-stand 1× 1 · part

Where the upper thread path is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Single-Needle Lockstitch Machine

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Flex (Singapore)
flex.com ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks
🇮🇳Dixon Technologies
dixoninfo.com ↗ 		Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
🇨🇳BYD Electronics
bydelectronic.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks