Products

Suppliers
Filter Gallery
8,515

Nmrv Worm Gearbox

Products
Reducer Gearbox Transmission Gearbox Reduction Gearbox Worm Reduction Gearbox Motor Gearbox Worm Speed Gearbox

Sorry! No matches were found.

Top Quality Nmrv Worm Speed Reducer Transmission Gearboxes

Top Quality Nmrv Worm Speed Reducer Transmission Gearboxes

US $ 10-100 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Gear, Gear Rack, Pulley, Chain, Sprocket, Coupling, Gearbox, Pinion, Speed Reducer, Speed Reducer Gear Box
Contact Supplier
Audited Supplier Audited Supplier Since 2006
Hangzhou Ocean Industry Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2006
Chat Now Send Inquiry
Nmrv 30 40 50 Gear Ratio 5-100 Aluminum/ Cast Iron Speed Reducer Worm Gearbox

Nmrv 30 40 50 Gear Ratio 5-100 Aluminum/ Cast Iron Speed Reducer Worm Gearbox

US $ 17-25 / Piece FOB
1 Piece (MOQ)
More
Application : Motor, Machinery, Toy, Agricultural Machinery
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Shenglin Transmission Technology (Ningbo) Co., Ltd

Manufacturer/Factory

Zhejiang, China Since 2024
Chat Now Send Inquiry
Nmrv 030 40 50 63 Worm Gear Box with Three-Phase Asynchronous Motor

Nmrv 030 40 50 63 Worm Gear Box with Three-Phase Asynchronous Motor

US $ 20-130 / Piece FOB
1 Piece (MOQ)
More
Main Products: Electric Motor, Gear Box, Frequency Converter, Reducer
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Shenglin Transmission Technology (Ningbo) Co., Ltd

Manufacturer/Factory

Zhejiang, China Since 2024
Chat Now Send Inquiry
Nmrv Worm Gear Motor Gearbox Reducer RV Worm Transmission Gearbox Worm Reduction Hypoid Gearbox

Nmrv Worm Gear Motor Gearbox Reducer RV Worm Transmission Gearbox Worm Reduction Hypoid Gearbox

US $ 90.7-325.3 / Piece FOB
1 Piece (MOQ)
More
Installation : Vertical Type
Contact Supplier
Audited Supplier Audited Supplier Since 2015
Taizhou Sihai Machinery Co., Ltd.

Manufacturer/Factory,Trading Company

Zhejiang, China Since 2015
Chat Now Send Inquiry
Spiral Bevel Helical Speed Gear Reducer Reduction Agriculture Nmrv Worm Winch Track Slewing Drive Agricultural Cycloidal Servo High Precision Planetary Gearbox

Spiral Bevel Helical Speed Gear Reducer Reduction Agriculture Nmrv Worm Winch Track Slewing Drive Agricultural Cycloidal Servo High Precision Planetary Gearbox

US $ 10-300 / Piece FOB
1 Piece (MOQ)
More
Main Products: Agricultural Gearbox, Worm Reducer, Sprocket, Gear, Chain, Pulley, Motor
Contact Supplier
Audited Supplier Audited Supplier Since 2020
HangZhou Ever-Power Transmission Co., Ltd.

Zhejiang, China Since 2020
Chat Now Send Inquiry
Reducer Spiral Bevel Helical Speed Reduction Agriculture Agricultural Cycloidal Servo High Precision Planetary Winch Track Wheel Slewing Drive Nmrv Worm Gearbox

Reducer Spiral Bevel Helical Speed Reduction Agriculture Agricultural Cycloidal Servo High Precision Planetary Winch Track Wheel Slewing Drive Nmrv Worm Gearbox

US $ 10-99 / Piece FOB
100 Pieces (MOQ)
More
Step : Stepless
Contact Supplier
Audited Supplier Audited Supplier Since 2020
Hangzhou Xinlan Technology Co., Ltd.

Zhejiang, China Since 2020
Chat Now Send Inquiry
Nmrv 25/30/40/50/63/75/90/110/130/150 Worm Gear Reducer Gearbox Prices

Nmrv 25/30/40/50/63/75/90/110/130/150 Worm Gear Reducer Gearbox Prices

US $ 15-100 / Piece FOB
1 Piece (MOQ)
More
Main Products: AC Gear Motor, DC Gear Motor, Worm Gearbox, Helical Gearbox, Planetary Gearbox, AC Electric Motor, DC Electric Motor, Servo Motor, Stepper Motor, Controller
Contact Supplier
Audited Supplier Audited Supplier Since 2020
Hangzhou ANG Drive Co., Ltd.

Manufacturer/Factory,Trading Company

Zhejiang, China Since 2020
Chat Now Send Inquiry
Nmrv Worm Gearbox Like Motovario

Nmrv Worm Gearbox Like Motovario

US $ 17-200 / Unit FOB
1 Unit (MOQ)
More
Installation : Vertical Type
Contact Supplier
Audited Supplier Audited Supplier Since 2021
Suzhou Dawang Transmission Equipment Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2021
Chat Now Send Inquiry
Top Quality Nmrv 25-150 Worm Speed Reducer Worm Speed Reducer Transmission Gearboxes

Top Quality Nmrv 25-150 Worm Speed Reducer Worm Speed Reducer Transmission Gearboxes

US $ 18-35 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Industrial Gearmotors, Gear Reducer Unit, RV Series Worm Gearbox, R Series in-Line Helical Geared Motor, F Series Parallel Shaft Helical Gearmotor, K Series Bevel Helical Gearmotor, S Series Worm Helical Gearmotor, Gear Speed Reducer, Reduction Gear Units
Contact Supplier
Audited Supplier Audited Supplier Since 2022
SLER TRANSMISSION DEVICES (HANGZHOU) CO., LTD.

Manufacturer/Factory

Zhejiang, China Since 2022
Chat Now Send Inquiry
Nmrv Nrv Low Speed Rpm Aluminum Housing Worm Speed Gearbox

Nmrv Nrv Low Speed Rpm Aluminum Housing Worm Speed Gearbox

US $ 10-100 / Piece FOB
10 Pieces (MOQ)
More
Application : Motor, Motorcycle, Machinery, Toy, Agricultural Machinery
Contact Supplier
Since 2021
Cimo Transmission Co., Ltd

Manufacturer/Factory

Zhejiang, China Since 2021
Chat Now Send Inquiry
Nmrv 25 30 40 50 60 75 90 110 130 150 Transmission Worm Gearbox

Nmrv 25 30 40 50 60 75 90 110 130 150 Transmission Worm Gearbox

US $ 17-200 / Unit FOB
1 Unit (MOQ)
More
Main Products: Gearbox, Gear Motor, Gear Box, Geared Motor, Gear Reducer, Worm Gearbox, Worm Reducer, Transmission Gearbox, Cycloidal Gearbox, Reducer
Contact Supplier
Audited Supplier Audited Supplier Since 2021
Suzhou Dawang Transmission Equipment Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2021
Chat Now Send Inquiry
Right Angle Worm Gear Units Nmrv 25 30 40 50 63 75 90 110 130 150 Aluminium Gearbox

Right Angle Worm Gear Units Nmrv 25 30 40 50 63 75 90 110 130 150 Aluminium Gearbox

US $ 100-300 / Piece FOB
10 Pieces (MOQ)
More
Layout : Coaxial
Contact Supplier
Audited Supplier Audited Supplier Since 2022
SLER TRANSMISSION DEVICES (HANGZHOU) CO., LTD.

Manufacturer/Factory

Zhejiang, China Since 2022
Chat Now Send Inquiry
Speed Reducer Gearbox Worm Gear Multi-Function Packing Machine Other Power Transmission Parts
Nmrv+Nmrv Double Worm Speed Gearbox

Nmrv+Nmrv Double Worm Speed Gearbox

US $ 10-100 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Sprocket, V Belt Pulley, Reducer, Locking Element, Gear and Rack, Shaft Collar
Contact Supplier
Since 2021
Cimo Transmission Co., Ltd

Manufacturer/Factory

Zhejiang, China Since 2021
Chat Now Send Inquiry
Prestage PC+Nmrv Combination Worm Gearbox

Prestage PC+Nmrv Combination Worm Gearbox

US $ 17-200 / Unit FOB
1 Unit (MOQ)
More
Application : Motor, Machinery, Marine, Agricultural Machinery
Contact Supplier
Audited Supplier Audited Supplier Since 2021
Suzhou Dawang Transmission Equipment Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2021
Chat Now Send Inquiry
Right Angle Worm Gearboxes with Output Flange Nmrv 63 Ratio 20

Right Angle Worm Gearboxes with Output Flange Nmrv 63 Ratio 20

US $ 18-50 / Piece FOB
15 Pieces (MOQ)
More
Main Products: Industrial Gearmotors, Gear Reducer Unit, RV Series Worm Gearbox, R Series in-Line Helical Geared Motor, F Series Parallel Shaft Helical Gearmotor, K Series Bevel Helical Gearmotor, S Series Worm Helical Gearmotor, Gear Speed Reducer, Reduction Gear Units
Contact Supplier
Audited Supplier Audited Supplier Since 2022
SLER TRANSMISSION DEVICES (HANGZHOU) CO., LTD.

Manufacturer/Factory

Zhejiang, China Since 2022
Chat Now Send Inquiry
Nrv+Nmrv Double Worm Speed Gearbox

Nrv+Nmrv Double Worm Speed Gearbox

US $ 10-100 / Piece FOB
10 Pieces (MOQ)
More
Application : Motor, Motorcycle, Machinery, Toy, Agricultural Machinery
Contact Supplier
Since 2021
Cimo Transmission Co., Ltd

Manufacturer/Factory

Zhejiang, China Since 2021
Chat Now Send Inquiry
Nmrv Series Worm Gearbox

Nmrv Series Worm Gearbox

US $ 17-200 / Unit FOB
1 Unit (MOQ)
More
Main Products: Gearbox, Gear Motor, Gear Box, Geared Motor, Gear Reducer, Worm Gearbox, Worm Reducer, Transmission Gearbox, Cycloidal Gearbox, Reducer
Contact Supplier
Audited Supplier Audited Supplier Since 2021
Suzhou Dawang Transmission Equipment Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2021
Chat Now Send Inquiry
Top Quality Nmrv Worm Speed Reducer Transmission Gearboxes

Top Quality Nmrv Worm Speed Reducer Transmission Gearboxes

US $ 66.5 / pc FOB
1 pc (MOQ)
More
Application : Motor, Machinery
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Gexin Electromechanical Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2023
Chat Now Send Inquiry
Nmrv Series Gearbox 21-89nm Worm Gear Reducer

Nmrv Series Gearbox 21-89nm Worm Gear Reducer

US $ 20-100 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Agricultural Gearbox, Baler Gearbox, Fertilizer Gearbox, Mower Gearbox, Spreader Gearbox, Worm Reducer, Cutter Bar, Universal Gearbox, Silage Gearbox, Tiller Gearbox
Contact Supplier
Audited Supplier Audited Supplier Since 2024
KADIVA MACHINERY (HANGZHOU) CO., LTD

Manufacturer/Factory,Trading Company

Zhejiang, China Since 2024
Chat Now Send Inquiry
Nmrv Combination Series Worm Gear Reducers, Gearbo Motors, Gearbox

Nmrv Combination Series Worm Gear Reducers, Gearbo Motors, Gearbox

US $ 200 / Piece FOB
1 Piece (MOQ)
More
Installation : Horizontal Type
Contact Supplier
Audited Supplier Audited Supplier Since 2007
Shanghai SGR Heavy Industry Machinery Co., Ltd.

Manufacturer/Factory,Trading Company

Shanghai, China Since 2007
Chat Now Send Inquiry
Related Videos
  • What is Top Quality Nmrv Worm Speed Reducer Transmission Gearboxes
    What is Top Quality Nmrv Worm Speed Reducer Transmission Gearboxes
    Negotiable
    10 Pieces (MOQ)
    Contact Supplier
  • What is Nmrv 30 40 50 Gear Ratio 5-100 Aluminum/ Cast Iron Speed Reducer Worm Gearbox
    What is Nmrv 30 40 50 Gear Ratio 5-100 Aluminum/ Cast Iron Speed Reducer Worm Gearbox
    Negotiable
    1 Piece (MOQ)
    Contact Supplier
  • What is Nmrv 030 40 50 63 Worm Gear Box with Three-Phase Asynchronous Motor
    What is Nmrv 030 40 50 63 Worm Gear Box with Three-Phase Asynchronous Motor
    Negotiable
    1 Piece (MOQ)
    Contact Supplier
  • What is Nmrv Worm Gear Motor Gearbox Reducer RV Worm Transmission Gearbox Worm Reduction Hypoid Gearbox
    What is Nmrv Worm Gear Motor Gearbox Reducer RV Worm Transmission Gearbox Worm Reduction Hypoid Gearbox
    Negotiable
    1 Piece (MOQ)
    Contact Supplier
Right Angle Aluminium Alloy Nmrv Series Worm Gearbox with SGS Certificate

Right Angle Aluminium Alloy Nmrv Series Worm Gearbox with SGS Certificate

US $ 30 / UNIT FOB
1 UNIT (MOQ)
More
Main Products: Reucer, Gearbox, Screw Jack, Gearmotor
Contact Supplier
Audited Supplier Audited Supplier Since 2022
Qingdao Chinese Science Machinery Co., Ltd.

Trading Company

Shandong, China Since 2022
Chat Now Send Inquiry
Nmrv Worm Gearbox with Flange Mounting, 24.6-1192 Nm Torque

Nmrv Worm Gearbox with Flange Mounting, 24.6-1192 Nm Torque

US $ 10-100 / Piece FOB
1 Piece (MOQ)
More
Installation : Horizontal Type
Contact Supplier
Audited Supplier Audited Supplier Since 2025
Wuxi Hemingder Technology Co., Ltd

Manufacturer/Factory

Jiangsu, China Since 2025
Chat Now Send Inquiry
High Quality Gear Motor Nmrv Aluminum Worm Gearbox for Industrial Machine

High Quality Gear Motor Nmrv Aluminum Worm Gearbox for Industrial Machine

US $ 10.99-159.99 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Speed Reducer, Worm Gearbox, Helical Gearbox, Power Transmission
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Hangzhou Jiuwei Transmission Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2024
Chat Now Send Inquiry
Nmrv Worm Gear Reducer Worm Gearbox 48VDC 1kw 50rpm 100A

Nmrv Worm Gear Reducer Worm Gearbox 48VDC 1kw 50rpm 100A

US $ 145-220 / Piece FOB
10 Pieces (MOQ)
More
Number of Poles : 2
Contact Supplier
Audited Supplier Audited Supplier Since 2021
Shenzhen Xinhe Motor Co., Ltd.

Manufacturer/Factory

Guangdong, China Since 2021
Chat Now Send Inquiry

Not exactly what you want?

Post Sourcing Request

Aluminum Housing Worm Reduces Nmrv 050 037 Reduces Gearbox

Aluminum Housing Worm Reduces Nmrv 050 037 Reduces Gearbox

US $ 8-10 / Piece FOB
1 Piece (MOQ)
More
Main Products: Belt Pulley, Shaft Collars, Gear Rack, Sprocket, Transmission Chain, Conveyor Chain, Bevel Gear, Roller Chain, CNC Machining, Metal Parts
Contact Supplier
Audited Supplier Audited Supplier Since 2021
Yuchen power transmission limited

Zhejiang, China Since 2021
Chat Now Send Inquiry
Nmrv Worm Gearbox Gear Box Motor Units RV Geared PC Nrv Speed Reducer Increaser Roller Shaft Output Best Price Manufacturer Seller Worm Gearbox

Nmrv Worm Gearbox Gear Box Motor Units RV Geared PC Nrv Speed Reducer Increaser Roller Shaft Output Best Price Manufacturer Seller Worm Gearbox

US $ 1,000 / Piece FOB
1 Piece (MOQ)
More
Installation : Horizontal Type
Contact Supplier
Audited Supplier Audited Supplier Since 2021
Ma'an Shan Precise Transmission Technology Co., Ltd.

Manufacturer/Factory,Trading Company

Anhui, China Since 2021
Chat Now Send Inquiry
Small Industrial Worm Gearbox Nmrv Series Inch Size

Small Industrial Worm Gearbox Nmrv Series Inch Size

US $ 56-150 / Piece FOB
3 Pieces (MOQ)
More
Main Products: Gearbox, Gear Box, Worm Gearbox, Speed Reducer, Gear Reducer, Gear Motor, Helical-Worm Gearmotor S Series, Helical-Bevel Gearmotor K Series, Parallel Helical Gear Motor F Series, Helical Gear Motor R Series
Contact Supplier
Audited Supplier Audited Supplier Since 2010
Guangdong Starshine Drive Co., Ltd.

Manufacturer/Factory

Guangdong, China Since 2010
Chat Now Send Inquiry
Nmrv Worm Gearbox Reduktor with Aluminium Housing

Nmrv Worm Gearbox Reduktor with Aluminium Housing

US $ 50-50,000 / Piece FOB
10 Pieces (MOQ)
More
Layout : Coaxial
Contact Supplier
Audited Supplier Audited Supplier Since 2019
RICHMAN UNIVERSAL SOURCING CO., LIMITED

Manufacturer/Factory,Trading Company

Guangdong, China Since 2019
Chat Now Send Inquiry
NMRV +NRV Worm Gear Reducer Worm Gearbox

NMRV +NRV Worm Gear Reducer Worm Gearbox

US $ 20-100 / Piece FOB
10 Pieces (MOQ)
More
Main Products: Chain,Sprocket,Gear,Gear Rack,Timing Pulley,V Belt Pulley,Gearbox,Coupling
Contact Supplier
Audited Supplier Audited Supplier Since 2006
ZHEJIANG OCEAN INDUSTRY CO., LTD

Manufacturer/Factory

Zhejiang, China Since 2006
Chat Now Send Inquiry
Worm Gear Reducer Double Stage Nmrv Gearbox for Boat Hoist

Worm Gear Reducer Double Stage Nmrv Gearbox for Boat Hoist

US $ 20-300 / Piece FOB
10 Pieces (MOQ)
More
Gear Shape : Bevel Gear
Contact Supplier
Audited Supplier Audited Supplier Since 2004
Hangzhou Sino-Deutsch Power Transmission Equipment Co., Ltd.

Manufacturer/Factory

Zhejiang, China Since 2004
Chat Now Send Inquiry
China Manufacter Nmrv/Nrv Series Worm Gearbox Transmission Gear Reducer

China Manufacter Nmrv/Nrv Series Worm Gearbox Transmission Gear Reducer

US $ 16-300 / Piece FOB
5 Pieces (MOQ)
More
Main Products: Cyclo Gearbox, Taper Bush, Tyre Coupling, Worm Reducer, Helical Geabrox
Contact Supplier
Audited Supplier Audited Supplier Since 2021
Hangzhou Speed Control Transmission Import & Export Co., Ltd.

Trading Company

Zhejiang, China Since 2021
Chat Now Send Inquiry
Nmrv 025-150 Worm Gear Box with Flange and Electric Motor

Nmrv 025-150 Worm Gear Box with Flange and Electric Motor

US $ 50 / Piece FOB
1 Piece (MOQ)
More
Installation : Horizontal Type
Contact Supplier
Audited Supplier Audited Supplier Since 2013
Zhengzhou Aokman Machinery Co., Ltd.

Manufacturer/Factory,Group Corporation

Henan, China Since 2013
Chat Now Send Inquiry
Gphq Nmrv30 Aluminum Worm Gearbox with Ratio 7.5 Nmrv Gearbox

Gphq Nmrv30 Aluminum Worm Gearbox with Ratio 7.5 Nmrv Gearbox

US $ 30-200 / Piece FOB
5 Pieces (MOQ)
More
Main Products: Electric Motor, Gearbox, Vibrator Motor, AC Fan, AC Motor, Gear Box Motor, Three Phase Motor, Single Phase Motor, Asynchronous Motor, Induction Motor
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Taizhou Pengyuan Electrical & Mechanical Co., Ltd.

Manufacturer/Factory,Trading Company

Zhejiang, China Since 2023
Chat Now Send Inquiry
Nrv/Nmrv Series Worm Gearbox Worm Gear Speed Reducer RV Aluminum Alloy Worm Gearbox

Nrv/Nmrv Series Worm Gearbox Worm Gear Speed Reducer RV Aluminum Alloy Worm Gearbox

US $ 35-68 / Piece FOB
1 Piece (MOQ)
More
Step : Double-Step
Contact Supplier
Audited Supplier Audited Supplier Since 2024
Dezhou Jinmai Machinery Equipment Co., Ltd

Manufacturer/Factory,Trading Company

Shandong, China Since 2024
Chat Now Send Inquiry
RV Series Worm Gear Speed Reducers, Motovario 90 Degree Nmrv Gearboxes

RV Series Worm Gear Speed Reducers, Motovario 90 Degree Nmrv Gearboxes

US $ 47-199 / Piece FOB
1 Piece (MOQ)
More
Main Products: Electric Motor, Geared Motor, AC Motor, Gear Reducer
Contact Supplier
Audited Supplier Audited Supplier Since 2015
Guangdong Lingyi Industrial Technology Co., Ltd.

Trading Company

Guangdong, China Since 2015
Chat Now Send Inquiry
230/600 Cak/W33spherical Roller Bea Speed Gear Reducer Bevel Helical Agricultural Cycloidal High Precision Planetary Winch Wheel Slewing Drive Nmrv Worm Gearbox

230/600 Cak/W33spherical Roller Bea Speed Gear Reducer Bevel Helical Agricultural Cycloidal High Precision Planetary Winch Wheel Slewing Drive Nmrv Worm Gearbox

1 Piece (MOQ)
More
Spherical : Aligning Bearings
Contact Supplier
Audited Supplier Audited Supplier Since 2023
Luoyang Monton Bearing Science & Technology Co., Ltd.

Manufacturer/Factory

Henan, China Since 2023
Chat Now Send Inquiry
Reducer Gearbox Transmission Gearbox Reduction Gearbox Worm Reduction Gearbox Motor Gearbox Worm Speed Gearbox
View More

Related Searches

Transmission Worm Gear Speed Reducer Gearbox Reducer Gear Box Gear Reducer Worm Gearbox Worm Gear Motor Wholesale Nmrv Worm Gearbox

Browse by Categories

Home > Industrial Equipment & Components > Power Transmission Parts > Speed Reducer
1/237
TOP

Search Filter

Categories

More Less
  • Speed Reducer
  • Gearbox
  • Worm
  • Gear
  • Multi-Function Packing Machine
  • Other Power Transmission Parts
  • Transmission Belt
  • Packing Machinery Parts
  • Sheet Metal Fabrication
  • Cylindrical Roller Bearing

Application

More Less
  • Motor
  • Machinery
  • Agricultural Machinery
  • Marine
  • Toy
  • Motorcycle
  • Electric Cars
  • Car

Function

More Less
  • Speed Reduction
  • Speed Changing
  • Change Drive Torque
  • Distribution Power
  • Change Drive Direction
  • Speed Increase
  • Clutch

Hardness

More Less
  • Hardened Tooth Surface
  • Soft Tooth Surface

Step

More Less
  • Single-Step
  • Stepless
  • Double-Step
  • Three-Step
  • Four-Step

Type

More Less
  • Worm Gear Box
  • Planetary Gear Box
  • Cylindrical Gear Box

Company Type

More Less
  • Manufacturer/Factory
  • Trading Company
  • Group Corporation
  • Other

Company Location

More Less
  • Zhejiang
  • Guangdong
  • Henan
  • Jiangsu
  • Shandong
  • Anhui
  • Fujian
  • Shanghai
  • Jiangxi
  • Beijing
  • Hebei
  • Tianjin
  • Jilin

Product Types

More Less
  • SecuredTrading
  • Buy Sample
Reset Done