Used Gleason Revacycle Nr. 726 for sale (2,031)

Condition: used, Year of construction: 2000, Technical details: max. wheel diameter: 180 mm gear width: * mm max. module: 4 total power requirement: 14 kW weight of the machine ca.: 8 t slide travel axial ( Z-axis ): 300 mm work piece - max.: 490-640 mm Kedpfx Ajyk Ur Uocfjdp

Condition: good (used), Year of construction: 1989, piece diametre 1500MM max coupling 914MM poids 15 tonnes Kdodpfjfl Aaqsx Acfep

Condition: ready for operation (used), Year of construction: 2002, functionality: fully functional, machine/vehicle number: 28 958, travel distance X-axis: 100 mm, travel distance Y-axis: 160 mm, TECHNICAL DETAILS Maximum permissible pitch circle diameter: 80 mm Maximum gear length: 170 mm Total length: 240 mm Mounting diameter: 32 mm Radial slide travel (X-axis): 100 mm Tangential slide travel (Y-axis): 160 mm Axial movement Z-axis: 300 mm/min Workpiece spindle - bore: 45 mm MACHINE DETAILS Approx. machine weight: 7,000 kg Kdsdpfow T Rz Dex Acfop Approx. dimensions (LxWxH): 9,130 x 3,895 x 3,450 mm Voltage: 400 V Frequency: 50 Hz Connected load: 45 kVA

Condition: ready for operation (used), Year of construction: 2000, functionality: fully functional, gear diameter: 180 mm, travel distance Z-axis: 300 mm, shaft length: 640 mm, TECHNICAL DETAILS Wheel diameter - max.: 180 mm Module - max.: 4 Carriage travel axial (Z-axis): 300 mm Shaft length - max.: 490-640 mm Y-axis travel: 33 - 193 mm MACHINE DETAILS Total power requirement: 14 kW Machine weight: 8 t Kedpfx Aow T R Abocfsdp Workpiece counter: 886,067 pieces

Condition: ready for operation (used), Year of construction: 2018, functionality: fully functional, spindle speed (max.): 3,000 rpm, travel distance X-axis: 90 mm, travel distance Y-axis: 80 mm, travel distance Z-axis: 400 mm, spindle bore: 40 mm, TECHNICAL DETAILS Travel Distance X-Axis: 90 mm Travel Distance Y-Axis: 80 mm Travel Distance Z-Axis: 400 mm Maximum Permissible Head Circle Diameter: 140 mm Milling Arbor Diameter: 22 mm Maximum Gear Cutting Length: 160 mm Angles Maximum Swivel Angle of Milling Head +A Direction: 45° Maximum Swivel Angle of Milling Head -A Direction: 118° Workpiece Spindle Outer Diameter: 105 mm Kdodpfxsxvrars Acfop Bore: 40 mm Rapid Traverse X-Axis: 7,500 mm/min Y-Axis: 5,000 mm/min Z-Axis: 15,000 mm/min Rotational Speeds Tool: 50 to 4,000 rpm Workpiece Spindle max.: 3,000 rpm MACHINE DETAILS Operating Hours: 29,790 h Cycle Time: 6,654 h Electrical Connection Mains Connection: 400 V (AC) Supply Voltage: 400 V (AC) Control Voltage: 24 V (DC) Frequency: 50 Hz Connected Load: 13 kVA Cable Cross-Section: 16 mm² Fuse Rating: 63 A Dimensions & Weight Space Requirement: 5.25 x 4.06 x 2.94 m Machine Weight: 8 t EQUIPMENT Industrial Filter IFS EC1500 Sediment Separator Knoll KF200/640 Integrated Chip Conveyor with Magnetic Separator Machine Automation for Loading and Unloading Workpieces Robot Automation Güdel KTB-31/62, Year Built: 2018 with Station for Part Remover

Condition: excellent (used), Year of construction: 2006, operating hours: 53,244 h, functionality: fully functional, Technical Data – Gleason Phoenix II 600HC (CNC Hypoid Gear Cutting Machine) Working Area Kdsdpfx Aexwzu Iocfop Max. workpiece diameter: Ø 600 mm Max. tooth depth: 24.6 mm Max. gear width: 110 mm Number of teeth: 1–300 Cutterhead size face milling (FM): 18" diameter Cutterhead size hobbing (FH): 210 mm radius Max. cutter spindle speed: 600 min⁻¹ Work Spindle Front taper diameter: Ø 203 mm Taper bore diameter: Ø 181 mm Bore depth: 884 mm Max. work spindle speed: 600 min⁻¹ Dimensions and Weight Footprint L × W × H: 4.4 × 3.5 × 3.5 m (incl. peripherals) Machine weight: 26,000 kg Connection Data Total connected load: 139 kVA Main fuse: 200 A Operating voltage: 400 V Mains frequency: 50 Hz Control voltage: 24 V DC

Condition: ready for operation (used), Year of construction: 2008, functionality: fully functional, GP300 CNC gear hobbing machine, WET AND DRY MACHINING available as required. Both options are freely selectable. Kjdpfjxqn Tqjx Acfedp Siemens 840D Solution Line, 5-axis system, suitable for shaft and disc-type workpieces. Max. Ø300 mm, max. module 6, swivel range ±45°, axial travel 440 mm, hobbing power 15 kW, HSK-B80, table Ø300 mm, direct drive, speed 90–900 rpm. High precision, digital drive technology (Sinamics S120), automatic head positioning 0.001°, linear guides, safety retraction, temperature compensation, full enclosure.

Condition: ready for operation (used), Year of construction: 2005, A bevel gear rolling test machine Gleason is available. Workpiece diameter: 330mm, max. center distance: 203mm, driver spindle nose distance range: 100mm-250mm, max. offset range upper/lower: 203mm/50mm, driver spindle bore: 99mm, driver spindle taper per meter: 15.5mm/m, counter spindle bore: 58mm, counter spindle taper per meter: 12.7mm/m, spindle speed: 1500rpm, test angle range: 0°-180°, driver spindle repeatability: +/-0.004mm, runout: +/-0.003mm, machine dimensions X/Y: approx. 1550mm/2050mm, weight: approx. 2400kg. An on-site inspection is possible. Kdsdpfx Aoxltu Nscfop

Condition: ready for operation (used), Three milling heads for different machines of the brand Pfauter-Gleason are available. 1) Milling head for Gleason Genesis 130H. 2) Milling head for Pfauter P200, without counter bearing. 3) Milling head for Pfauter PE250. An on-site inspection is possible. Kdjdexl Upzepfx Acfep

Condition: used, Year of construction: 2002, max. wheel diameter 275 mm gear width 58 mm max. module 10 min. module 0,5 weight of the machine ca. 9,5 t dimensions of the machine ca. 3800x2600x2550 mm Kdsdpfx Acsyan Nfjfep Maximum wheel diameter: 275 mm Module +: 10Module -: 0.5 CNC control Max. spindle speeds: 1200 rpm Max. wheel width: 58 mm

Condition: used, Year of construction: 1998, max. wheel diameter 1000 mm gear width 152 mm total power requirement 75 kW weight of the machine ca. 29,5 t Max. diameter. Gear: 1,000 mm Kedpfoyan N Ejx Acfsdp Dimensions: 5.5 x 5.3 x 3.2 m Weight: 29.5 tons Control: CNC (FANUC Series 150M) Max. wheel diameter 1,000 mm Max. day with single timing 1,000 mm Face milling Max. module 17 Control FANUC Series 150 M Number of teeth 5 - 300 FACE WIDTH 152 mm X-axis -305 Y-axis -305 / +305 mm Z-axis -25 / +711 mm B-axis -5 / 90 degrees

Condition: used, Year of construction: 2006, ratio of transmission 10:1 min. number of teeth 3 max. number of teeth 200 range of tooth size 20 mm tooth width max. 58 mm spindle speeds (infinitely variable) 6000 U/min work piece spindle speed 1200 U/min diameter of tools max. 230 mm diameter of tools min 69,85 mm x-axis 325 mm y-axis 350 mm z-axis 470 mm Kodjvxwr Aspfx Acfodp b-axis + 90,1 / - 1 ° work piece table - Ø 212,71 mm Control SIN 840 D SIEMENS total power requirement 75 kW weight of the machine ca. 10.000 Kg dimensions of the machine ca. 6,10 x 4,40 x 3,30 m coolant filtering unit Hoffmann HSF 100 V

Condition: used, Year of construction: 2003, max. wheel diameter 275 mm gear width 58 mm max. module 13 min. module 2 Control SINUMERIK 840 D number of teeth 5 - 200 ratio of transmission 10:1 Kjdpfox R U E Nox Acfodp cutter diameter max. 228 mm x-axis 25 - 350 mm y-axis +/- 175 mm z-axis 125 - 600 mm b-axis -5 / +90 ° total power requirement 75 kW weight of the machine ca. 11,7 t dimensions of the machine ca. 12,5 x 3,0 x 3,0 m Equipped for dry milling Pressure deburrer Deburring device with driven brush Integrated magnetic chip conveyor Promot Cellmaster Cartridge pulse filter system User interface control works with Gleason Summary

Condition: used, Year of construction: 2003, The equipment will be available for sale starting March 2027, as it is currently still in use within the production process Please state your offer price. Price without packaging and transportation; Payment in advance. You need to make us a price offer is you are interested about the machine. The hand over will be at our location Terms of delivery: EXW Cugir, Romania The buyer can assist in disassembling the machine. The buyer is responsible for transporting the machine. Kdsdpfx Acjza Tyvsfjp We organize only the loading part of the machine on the trailer/truck with forklift/crane The equipment will be available for sale starting March 2027, as it is currently still in use within the production process

Condition: used, Year of construction: 2005, ratio of transmission 10:1 min. number of teeth 3 max. number of teeth 200 range of tooth size 20 mm tooth width max. 58 mm diameter of tools min 69,85 mm diameter of tools max. 230 mm x-axis 325 mm y-axis 350 mm z-axis 470 mm work piece table - Ø 212,71 mm b-axis + 90,1 / - 1 ° Kodpfx Ajynmm Eecfodp Control SIN 840 D SIEMENS total power requirement 75 kW weight of the machine ca. 10.000 Kg dimensions of the machine ca. 6,10 x 4,40 x 3,30 m WAGURI with EWAB load cell built in 2012 (Linear loader) no coolant filter system available

Condition: used, Year of construction: 2007, ratio of transmission 10:1 min. number of teeth 3 max. number of teeth 200 range of tooth size 20 mm diameter of tools min 69,85 mm tooth width max. 58 mm diameter of tools max. 230 mm x-axis 325 mm y-axis 350 mm z-axis 470 mm work piece table - Ø 212,71 mm b-axis + 90,1 / - 1 ° Control 160 i - MB FANUC total power requirement 75 kW weight of the machine ca. 10.000 Kg dimensions of the machine ca. 6,10 x 4,40 x 3,30 m WAGURI With EWAB robot cell (KUKA robot) without coolant filter system Fire extinguishing system without CO2 bottles Cooling oil return with various pumps / collecting basins Threading device A1/B2 axes with measuring probe Kdsdpfx Ajynbdlecfjp Clamping device for a pinion shaft External spindle oil cooler Extraction system "pinion shaft"

Condition: used, Year of construction: 2008, ratio of transmission 10:1 min. number of teeth 3 max. number of teeth 200 range of tooth size 20 mm tooth width max. 58 mm spindle speeds (infinitely variable) 6000 U/min work piece spindle speed 1200 U/min diameter of tools max. 230 mm diameter of tools min 69,85 mm x-axis 325 mm y-axis 350 mm z-axis 470 mm b-axis + 90,1 / - 1 ° work piece table - Ø 212,71 mm Control SIN 840 D SIEMENS total power requirement 75 kW weight of the machine ca. 10.000 Kg dimensions of the machine ca. 6,10 x 4,40 x 3,30 m Kodpfx Aovxwmtjcfodp Internal probe Renishaw LP2 (axis X2;Y2) Hoffmann coolant filter system HSF 100SE/K (built in 2008) Tank capacity 2500L VT oil mist filter system

Condition: like new (used), Year of construction: 2017, max. wheel diameter 100 mm gear width 26 mm max. module 31 min. module 0,1 Control Siemens 840 D SL Number of working hours 9598 h total power requirement 45 kW weight of the machine ca. 7,8 t dimensions of the machine ca. 4,40x3,95x3,01 m Ksdpfx Ajv Ehbbecfjdp Gleason 100S gear shaping machine for the production of internally and externally toothed cylindrical gears and other cylindrical workpiece circumference regularly occurring profiles and moulds as well as for the production of profiles using the single part process. Technical data: Nominal workpiece diameter 100 mm Largest circumferential diameter 150 mm Machine nominal module approx. 3 mm (Guide value depending on the respective machining task.) Shaping spindle stroke speed range 0 - 3,000 1/min Stroke position adjustment range (manual) 20 mm Largest toothing width 26 mm Smallest pitch height of the hydrostatic inclined guide 400 mm Smallest/largest distance between tool axis - 20/+ 180 mm and workpiece axis Stand inclination range (manual) - 1/+ 11° Tool holder (manual clamping) HSK-D63 (hollow shank taper according to DIN 69063) Weight of the machine approx. 7,000 kg with robot cell

Condition: good (used), Year of construction: 2000, gear diameter: 449 mm, Equipped with: Fanuc 150MB CNC Control Dry Cutting Cutter Shroud Chip Evacuation System Auto Doors Hydraulic System Lubrication System Work light Stack Light Specifications: Largest Speed Ratio: 10:01 Work Area (Continuous): Largest Depth of Teeth: 15.24 mm Largest Width of Tooth Face: 50.8 mm Work Area Axis: Horizontal Movement X Axis: -114 - 178 mm Vertical Movement Y Axis: -178 - 190 mm Movement of the Carriage Baseplate Z-Axis: -10.16 - 500 mm Workpiece Headstock Swiveling Range B-Axis: -3 - 90 Degree Maximum Distance Machine Center to Spindle Side: 165 mm Number of Teeth: 5-200 Inclusive Max. Gear Pitch Dia. of Typical 35 Deg. Spiral Angle Gear Using Max. Cutter Dia. 12" Cutter at the Following Ratios: Face Milling 1 x 1 - 13.5" - 342.9mm 2 x 1 - 16.0" - 406.4mm 5 x 1 - 17.7" - 450.0mm Face Hobbing (210mm Dia. Cutter) 1 x 1 - 10.560" - 268.22mm 2 x 1 - 10.286" - 275.00mm Kodpfx Aoruakgocfedp 5 x 1 - 11.810" - 300.00mm Milling Head Diameter: Helixact: 100,125,169,200,250,320mm Continuous Gumption Procedure, Teichloroethylene: 102 - 210 mm Workpiece Spindle: Drilling of Large Diameters: 5 3/64" Cone Upward Gradient on 304.8 mm (1 Foot): 21/32" Deep One of the Cone: 5.29" Diameter of the Whole Spindle Perforating: 3.35" Speeds: B-Axle Workpiece Headstock Drag Axis: 30 Degrees A-Axle Workpiece Spindle Number of Revolutions: 0 83 min-1 X-Axis Horizontal: 80 mm/sec Y-Axis Vertically: 80 mm/sec Z-Axis Carriage Baseplate: 80 mm/sec Space Requirement L x W x H (Approximate): 4.75 x 3.40 x 2.54m / 188" x 134" x 100" Machine Weight (Approximate): 10980 kg / 24,156#

Condition: used, Year of construction: 1996, functionality: fully functional, machine/vehicle number: 25734, Equipped with: Fanuc 150MB Control Hydraulic Chucking Work Spindle Large Bore Work Spindle #80 Taper Stock Divider Helical Motion Modified Roll Hansen Coolant Chiller & Filtration Coolant Tank & Pumps Chip Conveyor Chip Hopper Reven Mist Collector Hydraulic System Transformer Cutter Bolt Work Light Operator Platform Hand Tools Kedpfx Asxaqa Sscfodp Documentation Specifications: Extreme Ratio: Face Milling: 10:1, Face Hobbing: 10:1 Full Depth: Maximum: Face Milling:1.25" (31.75mm), Face Hobbing: 0.93" (23.50mm) Face Width: Maximum: Face Milling:6.00" (152.00mm),Face Hobbing: 3.00" (76.20mm) Range of Tooth Numbers: 1-300 Inclusive Gear Pitch Diameter, Maximum: 1000 mm (39.37") Cutter Size, Maximum: 18" (diameter) Face Milling Cutter Size, Maximum: 350 mm (radius) Face Hobbing Root Angle Range (B-Axis) 5 deg.to 90 deg., Face Hobbing:5 deg. to 90 deg. Machine Center to Work Spindle Face:9.00"Fixed, 229mm (Fixed) A-Work Spindle: 0 to 67 RPM, 0 to 333 RPM B-Swinging Base: 0 to 30 deg./sec, N/A C-Cutter: 0 to 500 deg., Same X-Horizontal: +/-305mm (+/-12") Y-Vertical: +/-305 mm (+/-12") Z-Sliding Base: -25/+700mm (-1/+28") B-Root Angle: -5 Degree/+90 Degree Diameter of Taper Hole at Large End: 8" (#80 Taper) to 6" (#60 Taper) Taper Per Foot:3/4", Same Depth of Taper Front:6", 152.40 mm Depth of Bore: 678 mm (26.7") Diameter of Taper Bore: 140 mm (5.5") Diameter Through Spindle of Hole:7.125", 180.98 mm MACHINE DIMENSIONS: Length x Width:233"x 209", 5920 mm x 5310 mm Height: 129", 3280 mm Weight: 65,000 lbs., 29,484 kg

Condition: excellent (used), Year of construction: 2019, machine/vehicle number: 32006, input voltage: 480 V, The Sprinter for Gears with Short Face Widths up to 100 mm The 100S Gear Shaping Machine is ideally suited for small face widths, for shaping spur and helical gears, internal and external, and for crowned and tapered gears. With only 6 m2 the 100S is one of the most compact machines of its class. Equipped with: Siemens Sinumerik 840D SL Control Hydraulic System 180 Degree Load System HSK-63 Spindle Auto Stroke Adjustment Chip Conveyor Chip Basket Flexlink Automation Festo Pneumatics Rittal Panel Conditioners Chiller 480/3/60, 35 KvA Motor & Controls Specifications: Workpiece With External Gear: -Largest Module (Steel W/Approximate 600 N/mm2): 3 mm -Maximum Width: 26 mm -Maximum Diameter: 100 mm Workpiece With Internal Gear: -Largest Module (Steel With Approximate 600 N/mm2): 3 mm -Maximum Width: 26 mm -Maximum Swing Diameter: 150 mm -Maximum Internal Diameter: 100 mm Tool: -Locating Cone In The Cutter Spindle: HSK-D63 -Diameter Shaping Spindle: 85 mm -Maximum Stroke Length: 30 mm Machine Travel Distances: -Radial (X-Axis): 180 mm -Column Tilting (B-Axis): -1 - +11 Degrees Machine Workpiece Table: -External Diameter: 220 mm -Clamping Diameter: 160 mm -Bore: 63 mm Speeds: -Feed Rate X-Axis: 12,000 mm/min -Workpiece Table (C-Axis): 0-400 min-1 -Cutter (C2-Axis): 0-300 min-1 -Spindle Stroke (A-Axis): 500-3,000 min-1 Electrical Equipment: -Operating Voltage: 480V -Supply Voltage: 115V Kdjdpfx Acsrtrvyefjp -Control Voltage: 24V -Frequency: 60 Hz -Connected Load of Machine: 35 kVA -Cable Cross-Sectional Area: 35 mm2 -Protection: 80 A Machine Overall Dimensions (L x W x H): 3,380 x 3,950 x 3,015 mm Weight of Machine: 7,800 kg

Condition: good (used), workpiece diameter between centers: 2,286 mm, The No. 61 Angular Hypoid Tester is designed to test large bevel and hypoid gears up to 90" diameter and with shaft angles from 0 - 135 degrees. Spur, helical and internal gears can also be accommodated. The drive or pinion spindle can be rotated in either direction at a recommended spindle speed of 600 RPM. It is mounted in a head which is vertically adjustable on a column, so that the spindle can be offset either above or below the center line of the gear spindle for testing hypoid gears. The pinion head column is adjustable angularly in a horizontal plane to permit testing of gears of any shaft angle from 0 - 135 degrees. Specifications: Centerline of Drive Spindle to Nose of Brake Spindle (90 degrees shaft angle and without face plate): 38-1/2" Max. / 7-5/8" Min. Centerline of Brake Spindle to Nose of Drive Spindle (90 degrees shaft angle and without face plate): 60" Max. / 10" Min. Centerline of Brake Spindle to Nose of Drive Spindle (90 degrees shaft angle and with 54" face plate): 60" Max. / 28" Min. Centerline of Brake Spindle to Centerline of Drive Spindle (For Spur Gears): 56" Max. / 6" Min. Distance Between Nose of Brake Spindle and Nose of Drive Spindle (for spur gears): 36-1/2" Max. / 0" Min. Offset of Drive Spindle Either Above or Below Centerline of Brake Spindle: 10" Range of Shaft Angles: 0 - 360 Degrees Maximum Diameter of Gear: 90" Diameter of Face Plate: 54" Outboard Bearing: 3" Diameter Hole Spindles: RPM of Drive Spindle Pulley Set No. 1: 100 - 400 Ksdpfx Aertrzdjcfodp RPM of Drive Spindle Pulley Set No. 2: 250 - 600 Diameter of Taper Hole (large end): 6" Taper Per Foot: 3/4" Depth of Taper: 8" Hole Through Spindle: 5-1/2" Net Weight of Machine: 20,000# Net Weight of Machine W/Outboard Support and Bed Plate: 24,000#

Condition: used, Year of construction: 1977, machine/vehicle number: 19909, Equipped with: Index Plate Geneva Cam Cutter Body Hydraulic Work Clamping Coolant Pump & Tank Chip Conveyor Additional Cutter Bodies, Index Plates & Geneva Cams Available Specifications: Minimum Outside Cone Distance: 2.75" Maximum Cone Distance: 10" Maximum Gear Pitch Dia.: 20" Cutter Diameters Utilized: 9 - 18" Root Angle: 55 - 80 Deg. Face Width: 3" Number of Teeth: 20 -75 Diameter of Taper Hole at Large End: 3-27/64" Taper Per Foot: .50" Kdodpfoxdfazsx Acfjp Depth of Taper: .625" Cutter Speeds: 15.6 to 87.7 RPM Feeds (seconds/tooth): 5 to 34.3 Main Motor: 10hp, 1800 rpm Hydraulic Motor: 7.5hp, 1800 rpm Approximate Floor Space: 118" x 86.5" Needed Overall Height: 70" Approximate Net Weight: 18,820 lbs Shipping Weight Boxed for Export: 20,500 lbs

Condition: used, Year of construction: 1973, machine/vehicle number: 24109, Equipped with: Stock Divider Hydraulic Work Clamping Chip Conveyor Cutter Clamping Bolt Index Plate Kedpfxoxdfa Uj Acfedp Change Gears Hydraulic System Coolant System Specifications: Min. Outside Cone Distance: 2.75" Max. Cone Distance: 10" Max. Gear Pitch Dia.: 20" Cutter Diameters Utilized: 9 - 18" Root Angle: 55 - 80 deg. Face Width: 3" Number of Teeth: 20 -75 Diameter of Taper Hole at Large End: 3-27/64" Taper Per Foot: .50" Depth of Taper: .625" Cutter Speeds: 6.8 to 16.5 RPM Feeds (seconds/tooth): 3 to 9 Main Motor: 5hp, 900 rpm Hydraulic Motor: 7.5hp, 1800 rpm Approx. Floor Space: 118" x 86.5" Needed Overall Height: 70" Approx. Net Weight: 16,000 lbs Shipping Weight Boxed for Export: 17,000 lbs

Condition: good (used), gear diameter: 508 mm, total height: 1,780 mm, total length: 2,990 mm, total width: 2,200 mm, MODEL 610 GLEASON GEAR ROUGHER/FINISHER Equipped with: Hydraulic Workholding Pendant Control Chip Conveyor Index Plate Geneva Cam Ksdpfx Ajrtrykscfedp Change Gears Hydraulic System Coolant System Manuals Specifications: Maximum Gear Pitch Diameter: 20" Cutter Diameters: 9", 10.5", 12",14",16", 18" Whole Depth: 1.250" Root Angle: 60 to 80 deg. Face Width: 3.0" Extreme Ratio (Minimum): 2.25 to 1 Number of Teeth: 20 to 75 Diameter of Taper Hole at Large End: 3-27/64" Cutter Speeds (Per Minute) for Roughing: 15.6' to 87.7' Feeds (Seconds Per Tooth) for Roughing: 3 to 35 Cutter speeds (Per Minute) for Finishing: 6.8' to 20.5' Feeds (Seconds Per Tooth) for Finishing: 3 to 9 Floor Space: 118" x 86.5" x 70" H Weight: 17,500 lbs.