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Chainstitch Sewing Head

Assembly

Dual-looper needle bar assembly forming chainstitch above and below fabric for seamless construction. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Chainstitch Sewing Head parts and their functions

6 top-level parts · 12 parts in total · full bill of materials below
Chainstitch Sewing Head parts diagram: 1 needle bar assembly, 2 upper looper, 3 lower looper, 4 needle guide ring, 5 ball bearing, 6 fastener set. 12 parts in 6 top-level items.
Chainstitch Sewing Head 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 Assembly 1× Vertical needle bar oscillating above and below arm
2 Upper Looper 1× Upper rotating looper intercepting needle thread
3 Lower Looper 1× Lower rotating looper interceding underside thread
4 Needle Guide Ring 2× Precision guide rings constraining needle motion
5 Ball Bearing 6× Looper shaft support bearings (upper and lower)
6 Fastener Set 1× Head assembly mounting bolts

3D model

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Build & assembly graph

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Bill of materials for Chainstitch Sewing Head

6 top-level lines · 6 rows shown · 12 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Needle Bar Assembly feed-off-the-arm-machine-needle-bar 1× 1 · part
2 Upper Looper feed-off-the-arm-machine-looper-top 1× 1 · part
3 Lower Looper feed-off-the-arm-machine-looper-bottom 1× 1 · part
4 Needle Guide Ring feed-off-the-arm-machine-needle-guide 2× 2 · part
5 Ball Bearing ball-bearing 6× 6 · part
6 Fastener Set fastener-set 1× 1 · part

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Where the chainstitch sewing head is used

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

Used in 1 assembly

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–$200. How estimates work
VendorHQSpecialtyMOQLead time
🇮🇳Bharat Forge
bharatforge.com ↗
Pune, IN Forgings & metal parts 500 pcs 6–10 wks
dicastal.com ↗ Qinhuangdao, CN Aluminium castings & wheels 500 pcs 6–10 wks
tataautocomp.com ↗ Pune, IN Auto components 500 pcs 6–10 wks
🇸🇬Beyonics
beyonics.com ↗
Singapore Precision metal & mfg 500 pcs 6–10 wks
sundaram-clayton.com ↗ Chennai, IN Die castings 500 pcs 6–10 wks