Used Gear Shaper for sale (7,724)

  • Sort results

  • Lowest price Highest price
  • Newest listings Oldest listings
  • Shortest distance Farthest distance
  • Newest year of manufacture Oldest year of manufacture
  • Latest update Oldest update
  • Manufacturer A to Z Manufacturer Z to A
  • Relevance
Lowest price
Price
Highest price
Price
Newest listings
Release date
Oldest listings
Release date
Shortest distance
Distance
Farthest distance
Distance
Newest year of manufacture
Year of construction
Oldest year of manufacture
Year of construction
Latest update
Update
Oldest update
Update
Manufacturer A to Z
Manufacturer
Manufacturer Z to A
Manufacturer
designation from A to Z
Description
designation from Z to A
Description
Model from A to Z
Model
Model from Z to A
Model
Lowest reference
Ref.No.
Highest reference
Ref.No.
Shortest runtime
Runtime
Longest duration
Runtime
Relevance
Relevance
Listing
Rack Cutting Gear Shaper with PLC control Sykes V10 B
Rack Cutting Gear Shaper with PLC control Sykes V10 B
Rack Cutting Gear Shaper with PLC control Sykes V10 B
Rack Cutting Gear Shaper with PLC control Sykes V10 B
Rack Cutting Gear Shaper with PLC control Sykes V10 B
more images
Germany Düsseldorf
18,569 km

Rack Cutting Gear Shaper with PLC control
SykesV10 B

Call
Listing
USED GEAR SHAPER MANUF. FELLOWS MODEL 7125 A FELLOWS 7125 A
USED GEAR SHAPER MANUF. FELLOWS MODEL 7125 A FELLOWS 7125 A
USED GEAR SHAPER MANUF. FELLOWS MODEL 7125 A FELLOWS 7125 A
USED GEAR SHAPER MANUF. FELLOWS MODEL 7125 A FELLOWS 7125 A
USED GEAR SHAPER MANUF. FELLOWS MODEL 7125 A FELLOWS 7125 A
USED GEAR SHAPER MANUF. FELLOWS MODEL 7125 A FELLOWS 7125 A
USED GEAR SHAPER MANUF. FELLOWS MODEL 7125 A FELLOWS 7125 A
more images
Denmark Hvidovre
17,954 km

USED GEAR SHAPER MANUF. FELLOWS MODEL 7125 A
FELLOWS7125 A

Call
Listing
Gear shaper LORENZ LS 1.000
Gear shaper LORENZ LS 1.000
more images
Italy Seregno
18,764 km

Gear shaper
LORENZLS 1.000

Call
Listing
Gearwheel shaper STANKO 5M161
Gearwheel shaper STANKO 5M161
Gearwheel shaper STANKO 5M161
Gearwheel shaper STANKO 5M161
Gearwheel shaper STANKO 5M161
Gearwheel shaper STANKO 5M161
Gearwheel shaper STANKO 5M161
Gearwheel shaper STANKO 5M161
Gearwheel shaper STANKO 5M161
Gearwheel shaper STANKO 5M161
Gearwheel shaper STANKO 5M161
Gearwheel shaper STANKO 5M161
more images
Bulgaria Плевен
17,581 km

Gearwheel shaper
STANKO5M161

Call
Listing
Routing cutter Origin Shaper Schaper
Routing cutter Origin Shaper Schaper
Routing cutter Origin Shaper Schaper
Routing cutter Origin Shaper Schaper
Routing cutter Origin Shaper Schaper
more images
Austria Raasdorf bei Wien
18,141 km

Routing cutter
Origin ShaperSchaper

Call
Listing
Pump for fresh oil Shaper für Befüllung von Ölkanister
Pump for fresh oil Shaper für Befüllung von Ölkanister
Pump for fresh oil Shaper für Befüllung von Ölkanister
more images
Germany Wiefelstede
18,341 km

Pump for fresh oil
Shaperfür Befüllung von Ölkanister

Certified Dealer
Call
Listing
Fresh oil pump Shaper für Befüllung von Ölkanister
Fresh oil pump Shaper für Befüllung von Ölkanister
Fresh oil pump Shaper für Befüllung von Ölkanister
Fresh oil pump Shaper für Befüllung von Ölkanister
Fresh oil pump Shaper für Befüllung von Ölkanister
more images
Wiefelstede
18,341 km

Fresh oil pump
Shaperfür Befüllung von Ölkanister

Certified Dealer
Call
Listing
ANDERLE STEYR Type 40 | Shaper | ANDERLE STEYR Typ 40 | Shaper | ANDERLE STEYR Typ 40 | Shaper |
ANDERLE STEYR Type 40 | Shaper | ANDERLE STEYR Typ 40 | Shaper | ANDERLE STEYR Typ 40 | Shaper |
ANDERLE STEYR Type 40 | Shaper | ANDERLE STEYR Typ 40 | Shaper | ANDERLE STEYR Typ 40 | Shaper |
ANDERLE STEYR Type 40 | Shaper | ANDERLE STEYR Typ 40 | Shaper | ANDERLE STEYR Typ 40 | Shaper |
ANDERLE STEYR Type 40 | Shaper | ANDERLE STEYR Typ 40 | Shaper | ANDERLE STEYR Typ 40 | Shaper |
ANDERLE STEYR Type 40 | Shaper | ANDERLE STEYR Typ 40 | Shaper | ANDERLE STEYR Typ 40 | Shaper |
ANDERLE STEYR Type 40 | Shaper | ANDERLE STEYR Typ 40 | Shaper | ANDERLE STEYR Typ 40 | Shaper |
ANDERLE STEYR Type 40 | Shaper | ANDERLE STEYR Typ 40 | Shaper | ANDERLE STEYR Typ 40 | Shaper |
ANDERLE STEYR Type 40 | Shaper | ANDERLE STEYR Typ 40 | Shaper | ANDERLE STEYR Typ 40 | Shaper |
ANDERLE STEYR Type 40 | Shaper | ANDERLE STEYR Typ 40 | Shaper | ANDERLE STEYR Typ 40 | Shaper |
ANDERLE STEYR Type 40 | Shaper | ANDERLE STEYR Typ 40 | Shaper | ANDERLE STEYR Typ 40 | Shaper |
ANDERLE STEYR Type 40 | Shaper | ANDERLE STEYR Typ 40 | Shaper | ANDERLE STEYR Typ 40 | Shaper |
ANDERLE STEYR Type 40 | Shaper | ANDERLE STEYR Typ 40 | Shaper | ANDERLE STEYR Typ 40 | Shaper |
more images
Poland Wymysłów
17,869 km

ANDERLE STEYR Type 40 | Shaper |
ANDERLE STEYR Typ 40 | Shaper |ANDERLE STEYR Typ 40 | Shaper |

Certified Dealer
Call
Listing
Laser cutter Mazak Space Gear 510 MKII  2.5 kW
Laser cutter Mazak Space Gear 510 MKII  2.5 kW
Laser cutter Mazak Space Gear 510 MKII  2.5 kW
Laser cutter Mazak Space Gear 510 MKII  2.5 kW
more images
Poland Radomsko
17,844 km

Laser cutter
Mazak Space Gear510 MKII 2.5 kW

Call
Listing
Laser cutter Mazak Hyper Gear 510 4.0 kW
Laser cutter Mazak Hyper Gear 510 4.0 kW
Laser cutter Mazak Hyper Gear 510 4.0 kW
Laser cutter Mazak Hyper Gear 510 4.0 kW
more images
Poland Radomsko
17,844 km

Laser cutter
Mazak Hyper Gear510 4.0 kW

Call
Listing
CNC-processing Shaper Origin Nr. SO2-EN
more images
Germany Gerolzhofen
18,473 km

CNC-processing
ShaperOrigin Nr. SO2-EN

Call
Auction
Gear cutting machine VDF 26 HS
Gear cutting machine VDF 26 HS
Gear cutting machine VDF 26 HS
Gear cutting machine VDF 26 HS
Gear cutting machine VDF 26 HS
Gear cutting machine VDF 26 HS
Gear cutting machine VDF 26 HS
Gear cutting machine VDF 26 HS
Gear cutting machine VDF 26 HS
Gear cutting machine VDF 26 HS
Gear cutting machine VDF 26 HS
Gear cutting machine VDF 26 HS
Gear cutting machine VDF 26 HS
Gear cutting machine VDF 26 HS
Gear cutting machine VDF 26 HS
Ends in 
min  Auction ended
Netherlands Gelderland
18,566 km

Gear cutting machine
VDF26 HS

buyer-protection
Listing
Lenze gear motor GST04-2B VCK071-32 0.37 kW 44 rpm 79 Nm i=31.6 3-phase Motoreduktor Lenze GST04-2B VCK071-32 0,37 kW 44 obr./min 79 Nm i=31,6 3-fazowy Motoreduktor Lenze GST04-2B VCK071-32 0,37 kW 44 obr./min 79 Nm i=31,6 3-fazowy
Lenze gear motor GST04-2B VCK071-32 0.37 kW 44 rpm 79 Nm i=31.6 3-phase Motoreduktor Lenze GST04-2B VCK071-32 0,37 kW 44 obr./min 79 Nm i=31,6 3-fazowy Motoreduktor Lenze GST04-2B VCK071-32 0,37 kW 44 obr./min 79 Nm i=31,6 3-fazowy
Lenze gear motor GST04-2B VCK071-32 0.37 kW 44 rpm 79 Nm i=31.6 3-phase Motoreduktor Lenze GST04-2B VCK071-32 0,37 kW 44 obr./min 79 Nm i=31,6 3-fazowy Motoreduktor Lenze GST04-2B VCK071-32 0,37 kW 44 obr./min 79 Nm i=31,6 3-fazowy
Lenze gear motor GST04-2B VCK071-32 0.37 kW 44 rpm 79 Nm i=31.6 3-phase Motoreduktor Lenze GST04-2B VCK071-32 0,37 kW 44 obr./min 79 Nm i=31,6 3-fazowy Motoreduktor Lenze GST04-2B VCK071-32 0,37 kW 44 obr./min 79 Nm i=31,6 3-fazowy
Lenze gear motor GST04-2B VCK071-32 0.37 kW 44 rpm 79 Nm i=31.6 3-phase Motoreduktor Lenze GST04-2B VCK071-32 0,37 kW 44 obr./min 79 Nm i=31,6 3-fazowy Motoreduktor Lenze GST04-2B VCK071-32 0,37 kW 44 obr./min 79 Nm i=31,6 3-fazowy
Lenze gear motor GST04-2B VCK071-32 0.37 kW 44 rpm 79 Nm i=31.6 3-phase Motoreduktor Lenze GST04-2B VCK071-32 0,37 kW 44 obr./min 79 Nm i=31,6 3-fazowy Motoreduktor Lenze GST04-2B VCK071-32 0,37 kW 44 obr./min 79 Nm i=31,6 3-fazowy
more images
Poland Wymysłów
17,869 km

Lenze gear motor GST04-2B VCK071-32 0.37 kW 44 rpm 79 Nm i=31.6 3-phase
Motoreduktor Lenze GST04-2B VCK071-32 0,37 kW 44 obr./min 79 Nm i=31,6 3-fazowyMotoreduktor Lenze GST04-2B VCK071-32 0,37 kW 44 obr./min 79 Nm i=31,6 3-fazowy

Certified Dealer
Call
Listing
SEW-Eurodrive worm gear motor WA20DT63L4/B03 0.25 kW 130 rpm 16 Nm 230/400 V Motoreduktor ślimakowy SEW-Eurodrive WA20DT63L4/B03 0,25 kW 130 obr./min 16 Nm 230/400 V Motoreduktor ślimakowy SEW-Eurodrive WA20DT63L4/B03 0,25 kW 130 obr./min 16 Nm 230/400 V
SEW-Eurodrive worm gear motor WA20DT63L4/B03 0.25 kW 130 rpm 16 Nm 230/400 V Motoreduktor ślimakowy SEW-Eurodrive WA20DT63L4/B03 0,25 kW 130 obr./min 16 Nm 230/400 V Motoreduktor ślimakowy SEW-Eurodrive WA20DT63L4/B03 0,25 kW 130 obr./min 16 Nm 230/400 V
SEW-Eurodrive worm gear motor WA20DT63L4/B03 0.25 kW 130 rpm 16 Nm 230/400 V Motoreduktor ślimakowy SEW-Eurodrive WA20DT63L4/B03 0,25 kW 130 obr./min 16 Nm 230/400 V Motoreduktor ślimakowy SEW-Eurodrive WA20DT63L4/B03 0,25 kW 130 obr./min 16 Nm 230/400 V
SEW-Eurodrive worm gear motor WA20DT63L4/B03 0.25 kW 130 rpm 16 Nm 230/400 V Motoreduktor ślimakowy SEW-Eurodrive WA20DT63L4/B03 0,25 kW 130 obr./min 16 Nm 230/400 V Motoreduktor ślimakowy SEW-Eurodrive WA20DT63L4/B03 0,25 kW 130 obr./min 16 Nm 230/400 V
SEW-Eurodrive worm gear motor WA20DT63L4/B03 0.25 kW 130 rpm 16 Nm 230/400 V Motoreduktor ślimakowy SEW-Eurodrive WA20DT63L4/B03 0,25 kW 130 obr./min 16 Nm 230/400 V Motoreduktor ślimakowy SEW-Eurodrive WA20DT63L4/B03 0,25 kW 130 obr./min 16 Nm 230/400 V
SEW-Eurodrive worm gear motor WA20DT63L4/B03 0.25 kW 130 rpm 16 Nm 230/400 V Motoreduktor ślimakowy SEW-Eurodrive WA20DT63L4/B03 0,25 kW 130 obr./min 16 Nm 230/400 V Motoreduktor ślimakowy SEW-Eurodrive WA20DT63L4/B03 0,25 kW 130 obr./min 16 Nm 230/400 V
SEW-Eurodrive worm gear motor WA20DT63L4/B03 0.25 kW 130 rpm 16 Nm 230/400 V Motoreduktor ślimakowy SEW-Eurodrive WA20DT63L4/B03 0,25 kW 130 obr./min 16 Nm 230/400 V Motoreduktor ślimakowy SEW-Eurodrive WA20DT63L4/B03 0,25 kW 130 obr./min 16 Nm 230/400 V
more images
Poland Wymysłów
17,869 km

SEW-Eurodrive worm gear motor WA20DT63L4/B03 0.25 kW 130 rpm 16 Nm 230/400 V
Motoreduktor ślimakowy SEW-Eurodrive WA20DT63L4/B03 0,25 kW 130 obr./min 16 Nm 230/400 VMotoreduktor ślimakowy SEW-Eurodrive WA20DT63L4/B03 0,25 kW 130 obr./min 16 Nm 230/400 V

Certified Dealer
Call
Listing
Gear motor, gearbox Getriebemotor, Getriebe (3161)
Gear motor, gearbox Getriebemotor, Getriebe (3161)
Gear motor, gearbox Getriebemotor, Getriebe (3161)
Gear motor, gearbox Getriebemotor, Getriebe (3161)
Gear motor, gearbox Getriebemotor, Getriebe (3161)
Gear motor, gearbox Getriebemotor, Getriebe (3161)
Gear motor, gearbox Getriebemotor, Getriebe (3161)
Gear motor, gearbox Getriebemotor, Getriebe (3161)
Gear motor, gearbox Getriebemotor, Getriebe (3161)
more images
Hungary Tatabánya
18,028 km

Gear motor, gearbox
Getriebemotor, Getriebe(3161)

Certified Dealer
Call
Listing
Gear milling machine Gleason-Pfauter P 1600/2000 S
Gear milling machine Gleason-Pfauter P 1600/2000 S
Gear milling machine Gleason-Pfauter P 1600/2000 S
Gear milling machine Gleason-Pfauter P 1600/2000 S
Gear milling machine Gleason-Pfauter P 1600/2000 S
Gear milling machine Gleason-Pfauter P 1600/2000 S
Gear milling machine Gleason-Pfauter P 1600/2000 S
Gear milling machine Gleason-Pfauter P 1600/2000 S
Gear milling machine Gleason-Pfauter P 1600/2000 S
Gear milling machine Gleason-Pfauter P 1600/2000 S
Gear milling machine Gleason-Pfauter P 1600/2000 S
Gear milling machine Gleason-Pfauter P 1600/2000 S
Gear milling machine Gleason-Pfauter P 1600/2000 S
Gear milling machine Gleason-Pfauter P 1600/2000 S
Gear milling machine Gleason-Pfauter P 1600/2000 S
Gear milling machine Gleason-Pfauter P 1600/2000 S
Gear milling machine Gleason-Pfauter P 1600/2000 S
Gear milling machine Gleason-Pfauter P 1600/2000 S
Gear milling machine Gleason-Pfauter P 1600/2000 S
Gear milling machine Gleason-Pfauter P 1600/2000 S
Gear milling machine Gleason-Pfauter P 1600/2000 S
Gear milling machine Gleason-Pfauter P 1600/2000 S
Gear milling machine Gleason-Pfauter P 1600/2000 S
Gear milling machine Gleason-Pfauter P 1600/2000 S
Gear milling machine Gleason-Pfauter P 1600/2000 S
Gear milling machine Gleason-Pfauter P 1600/2000 S
Gear milling machine Gleason-Pfauter P 1600/2000 S
more images
Czech Republic Brno-město
18,106 km

Gear milling machine
Gleason-PfauterP 1600/2000 S

Certified Dealer
Call
Listing
Geared motor 0.05/0.17 kW 450/1440 rpm DEMAG 13/6 PKF 12/4
Geared motor 0.05/0.17 kW 450/1440 rpm DEMAG 13/6 PKF 12/4
Geared motor 0.05/0.17 kW 450/1440 rpm DEMAG 13/6 PKF 12/4
Geared motor 0.05/0.17 kW 450/1440 rpm DEMAG 13/6 PKF 12/4
Geared motor 0.05/0.17 kW 450/1440 rpm DEMAG 13/6 PKF 12/4
Geared motor 0.05/0.17 kW 450/1440 rpm DEMAG 13/6 PKF 12/4
Geared motor 0.05/0.17 kW 450/1440 rpm DEMAG 13/6 PKF 12/4
Geared motor 0.05/0.17 kW 450/1440 rpm DEMAG 13/6 PKF 12/4
Geared motor 0.05/0.17 kW 450/1440 rpm DEMAG 13/6 PKF 12/4
Geared motor 0.05/0.17 kW 450/1440 rpm DEMAG 13/6 PKF 12/4
Geared motor 0.05/0.17 kW 450/1440 rpm DEMAG 13/6 PKF 12/4
more images
Germany Wiefelstede
18,341 km

Geared motor 0.05/0.17 kW 450/1440 rpm
DEMAG13/6 PKF 12/4

Certified Dealer
Call
Listing
Gear motor 0.37 kW 197 rpm Bonfiglioli MVF49/F
Gear motor 0.37 kW 197 rpm Bonfiglioli MVF49/F
Gear motor 0.37 kW 197 rpm Bonfiglioli MVF49/F
Gear motor 0.37 kW 197 rpm Bonfiglioli MVF49/F
Gear motor 0.37 kW 197 rpm Bonfiglioli MVF49/F
more images
Germany Wiefelstede
18,341 km

Gear motor 0.37 kW 197 rpm
BonfiglioliMVF49/F

Certified Dealer
Call
Listing
Bevel Gear Testing Machine KLINGELNBERG PS 750
Bevel Gear Testing Machine KLINGELNBERG PS 750
more images
Germany Malsch
18,657 km

Bevel Gear Testing Machine
KLINGELNBERGPS 750

Certified Dealer
Call
Listing
Geared motor 0.22 kW 54 rpm Chiaravalli** CBFV040   CHT 63C4 B14
Geared motor 0.22 kW 54 rpm Chiaravalli** CBFV040   CHT 63C4 B14
Geared motor 0.22 kW 54 rpm Chiaravalli** CBFV040   CHT 63C4 B14
Geared motor 0.22 kW 54 rpm Chiaravalli** CBFV040   CHT 63C4 B14
Geared motor 0.22 kW 54 rpm Chiaravalli** CBFV040   CHT 63C4 B14
Geared motor 0.22 kW 54 rpm Chiaravalli** CBFV040   CHT 63C4 B14
Geared motor 0.22 kW 54 rpm Chiaravalli** CBFV040   CHT 63C4 B14
Geared motor 0.22 kW 54 rpm Chiaravalli** CBFV040   CHT 63C4 B14
Geared motor 0.22 kW 54 rpm Chiaravalli** CBFV040   CHT 63C4 B14
Geared motor 0.22 kW 54 rpm Chiaravalli** CBFV040   CHT 63C4 B14
Geared motor 0.22 kW 54 rpm Chiaravalli** CBFV040   CHT 63C4 B14
Geared motor 0.22 kW 54 rpm Chiaravalli** CBFV040   CHT 63C4 B14
Geared motor 0.22 kW 54 rpm Chiaravalli** CBFV040   CHT 63C4 B14
Geared motor 0.22 kW 54 rpm Chiaravalli** CBFV040   CHT 63C4 B14
more images
Germany Wiefelstede
18,341 km

Geared motor 0.22 kW 54 rpm
Chiaravalli**CBFV040 CHT 63C4 B14

Certified Dealer
Call
Listing
Gear hobbing cutters, drills, gauges
Gear hobbing cutters, drills, gauges
Gear hobbing cutters, drills, gauges
Gear hobbing cutters, drills, gauges
Gear hobbing cutters, drills, gauges
Gear hobbing cutters, drills, gauges
Gear hobbing cutters, drills, gauges
Gear hobbing cutters, drills, gauges
Gear hobbing cutters, drills, gauges
Gear hobbing cutters, drills, gauges
Gear hobbing cutters, drills, gauges
Gear hobbing cutters, drills, gauges
Gear hobbing cutters, drills, gauges
Gear hobbing cutters, drills, gauges
Gear hobbing cutters, drills, gauges
Gear hobbing cutters, drills, gauges
Gear hobbing cutters, drills, gauges
more images
Czech Republic Most 1
18,240 km

Gear hobbing cutters, drills, gauges

Call
Siegel

Trust Seal

Dealers certified through Machineseeker

Trust Seal
Listing
Used Nova shaper NOVA NOVA
Used Nova shaper NOVA NOVA
more images
France Perriers-sur-Andelle
18,963 km

Used Nova shaper
NOVANOVA

Call
Listing
Gear hobbing machine Pfauter 800
more images
Germany Rostock
18,083 km

Gear hobbing machine
Pfauter800

Call
Listing
Gear shaping machines  Karl Klink RW 10 1963 Karl Klink RW 10
Gear shaping machines  Karl Klink RW 10 1963 Karl Klink RW 10
Gear shaping machines  Karl Klink RW 10 1963 Karl Klink RW 10
Gear shaping machines  Karl Klink RW 10 1963 Karl Klink RW 10
Gear shaping machines  Karl Klink RW 10 1963 Karl Klink RW 10
Gear shaping machines  Karl Klink RW 10 1963 Karl Klink RW 10
Gear shaping machines  Karl Klink RW 10 1963 Karl Klink RW 10
Gear shaping machines  Karl Klink RW 10 1963 Karl Klink RW 10
Gear shaping machines  Karl Klink RW 10 1963 Karl Klink RW 10
Gear shaping machines  Karl Klink RW 10 1963 Karl Klink RW 10
Gear shaping machines  Karl Klink RW 10 1963 Karl Klink RW 10
Gear shaping machines  Karl Klink RW 10 1963 Karl Klink RW 10
Gear shaping machines  Karl Klink RW 10 1963 Karl Klink RW 10
Gear shaping machines  Karl Klink RW 10 1963 Karl Klink RW 10
Gear shaping machines  Karl Klink RW 10 1963 Karl Klink RW 10
more images
Netherlands Wijchen
18,567 km

Gear shaping machines Karl Klink RW 10 1963
Karl KlinkRW 10

Certified Dealer
Call
Listing
Laser cutting machine MAZAK Hyper Gear 510
Laser cutting machine MAZAK Hyper Gear 510
Laser cutting machine MAZAK Hyper Gear 510
Laser cutting machine MAZAK Hyper Gear 510
Laser cutting machine MAZAK Hyper Gear 510
more images
Germany Großrudestedt
18,353 km

Laser cutting machine
MAZAKHyper Gear 510

Certified Dealer
Call

This may be of interest to you

Machineseeker Group Aquire Gebrauchtmaschinen.de Used-machines.com

Machineseeker Group acquires the platforms used-machines.com and Gebrauchtmaschinen.de

Machineseeker Auctions

Sales with maximum attention: Selected auction highlights

receive any e-mails from Machineseeker

How to receive 100% of our e-mails

Machinseeker Olympic Games

Olympic Games: Machineseeker supports “Team Germany” in Paris

Machineseeker Premium Auctions: Auction with the No. 1

Machineseeker Premium Auctions: Auction with the No. 1

Strongest Forklift Trucks

Photo gallery: the 10 strongest forklift trucks in the world