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J1 Joint (Theta-1)

Assembly

A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

J1 Joint (Theta-1) parts and their functions

6 top-level parts · 30 parts in total · full bill of materials below
J1 Joint (Theta-1) parts diagram: 1 servo motor, 2 gearbox housing, 3 harmonic drive gear set, 4 cross-roller bearing, 5 absolute encoder, 6 oil seal. 30 parts in 6 top-level items.
J1 Joint (Theta-1) parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Servo Motor 4 parts 1× 400 W AC servo
2 Gearbox Housing 1× Harmonic drive case
3 Harmonic Drive Gear Set 1× Strain-wave reducer, 100:1.
4 Cross-Roller Bearing 1×
5 Absolute Encoder 1× 17-bit absolute
6 Oil Seal 2× Spring-loaded rotary lip seal that keeps lubricant inside a housing and dirt out where a shaft passes through, sized to DIN 3760.

3D model

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Build & assembly graph

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Bill of materials for J1 Joint (Theta-1)

6 top-level lines · 17 rows shown · 30 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Servo Motor 4 parts servo-motor 1× 1 24 assembly
1.1 Stator Assembly 3 parts stator-assembly 1× 1 3 assembly
1.1.1 Stator Core (laminations) stator-core 1× 1 · part
1.1.2 Copper Winding copper-winding 1× 1 · part
1.1.3 Slot Insulation stator-insulation 1× 1 · part
1.2 Rotor Assembly 4 parts rotor-assembly 1× 1 19 assembly
1.2.1 Rotor Shaft rotor-shaft 1× 1 · part
1.2.2 Rotor Core rotor-core 1× 1 · part
1.2.3 Neodymium Magnet neodymium-magnet 16× 16 · part
1.2.4 Ball Bearing ball-bearing 1× 1 · part
1.3 Encoder encoder 1× 1 · part
1.4 Motor Housing motor-housing 1× 1 · part
2 Gearbox Housing gearbox-housing 1× 1 · part
3 Harmonic Drive Gear Set assembly-robot-cell-harmonic-gear 1× 1 · part
4 Cross-Roller Bearing assembly-robot-cell-crossroller-bearing 1× 1 · part
5 Absolute Encoder assembly-robot-cell-abs-encoder 1× 1 · part
6 Oil Seal oil-seal 2× 2 · part

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Where the J1 joint (theta-1) 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–$100. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗
Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
flex.com ↗ Singapore Electronics contract mfg 1,000 pcs 6–10 wks
dixoninfo.com ↗ Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
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