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Discussion History

Servo Joint

Assembly

One rotary axis with motor, reducer, brake, and feedback. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Servo Joint parts and their functions

5 top-level parts · 54 parts in total · full bill of materials below
Servo Joint parts diagram: 1 servo motor, 2 RV reducer, 3 holding brake, 4 absolute encoder, 5 ball bearing. 54 parts in 5 assemblies.
Servo Joint 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× Brushless motor with an integrated encoder or resolver, driven in closed loop to hold commanded position, speed, or torque precisely.
2 RV Reducer 4 parts 1× Cycloidal reducer giving high reduction and shock resistance at the heavily loaded base joints.
3 Holding Brake 1× Spring-applied brake that holds the axis when power is removed.
4 Absolute Encoder 2 parts 1×
5 Ball Bearing 2× Deep-groove radial ball bearing.

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 Servo Joint

5 top-level lines · 22 rows shown · 54 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 RV Reducer 4 parts vision-guided-robot-reducer 1× 1 6 assembly
2.1 Gearbox Housing gearbox-housing 1× 1 · part
2.2 Cycloidal Disc vision-guided-robot-cycloid-disc 2× 2 · part
2.3 Eccentric Cam vision-guided-robot-eccentric-cam 1× 1 · part
2.4 Ball Bearing ball-bearing 2× 2 · part
3 Holding Brake vision-guided-robot-brake 1× 1 · part
4 Absolute Encoder 2 parts vision-guided-robot-encoder 1× 1 21 assembly
4.1 Bare PCB pcb-bare 1× 1 · part
4.2 SMD Passive (R/C/L) smd-passives 20× 20 · part
5 Ball Bearing ball-bearing 2× 2 · part

Where the servo joint is used

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

Used in 2 assemblies

Six-Axis Arm Three-Roll Wrist

Sourcing: possible vendors

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 $2–$500. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Inovance
inovance.com ↗ 		Shenzhen, CN Drives & motion control 500 units 10–14 wks
🇮🇳Sona Comstar
sonacomstar.com ↗ 		Gurugram, IN EV driveline & motors 500 units 10–14 wks
🇨🇳Broad-Ocean
broad-ocean.com ↗ 		Zhongshan, CN Electric motors 500 units 10–14 wks
🇸🇬Nidec (Singapore)
nidec.com ↗ 		Singapore Motors, regional ops 500 units 10–14 wks
🇮🇳Bosch India
bosch.in ↗ 		Bengaluru, IN Automotive components 500 units 10–14 wks