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Elbow Joint (Axis 3)

Assembly

Joint articulating the forearm relative to the upper arm. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Elbow Joint (Axis 3) parts and their functions

6 top-level parts · 34 parts in total · full bill of materials below
Elbow Joint (Axis 3) parts diagram: 1 servo motor, 2 gearbox housing, 3 helical gear pair, 4 joint encoder, 5 ball bearing, 6 oil seal. 34 parts in 6 top-level items.
Elbow Joint (Axis 3) 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× Axis 3 drive
2 Gearbox Housing 1× Reducer housing
3 Helical Gear Pair 1× Speed reducer stage
4 Joint Encoder 4 parts 1× Position feedback
5 Ball Bearing 2× Joint bearings
6 Oil Seal 2× Reducer seals

3D model

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Build & assembly graph

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Bill of materials for Elbow Joint (Axis 3)

6 top-level lines · 21 rows shown · 34 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 Helical Gear Pair gear-pair 1× 1 · part
4 Joint Encoder 4 parts robotic-case-packer-joint-encoder 1× 1 4 assembly
4.1 Bare PCB pcb-bare 1× 1 · part
4.2 SMD Passive (R/C/L) smd-passives 1× 1 · part
4.3 Encoder Disk robotic-case-packer-encoder-disk 1× 1 · part
4.4 Connector connector 1× 1 · part
5 Ball Bearing ball-bearing 2× 2 · part
6 Oil Seal oil-seal 2× 2 · part

Where the elbow joint (axis 3) is used

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

Used in 1 assembly

Robot Arm

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