Used Naxos-Union Cylindrical Grinding Machine for sale (65,283)

Condition: used, functionality: unexamined, Danobat Universal Grinder model 1200 RP with automatic diamond dressing device, capable of working in automatic cycle, maximum grinding diameter 270mm, maximum wheel diameter 400mm, maximum wheel width 60mm, head power 12 HP. Chedew Iv Huepfx Ahmsc

Condition: used, Year of construction: 2013, grinding diameter 300 mm grinding depth 300 mm Travel distance - Z1 470 mm Travel distance - X1 200 mm Tilt angle - B2 1/1000 ° power capacity 3,5 kW Travel distance - Z2 470 mm Travel distance - X2 325 mm Drive power – External grinding spindles 16,5 kW 120 mm grinding diameter - cylindrical 400 mm sanding belt length 400 mm grinding wheel size Ø 500 x 50 x Ø 127 mm Travel distance - U 470 mm Tilt angle – B1 with longitudinal adjustment -1/+12 ° Tilt angle - B1 with workpiece spindle unit -20/+30 ° Manual longitudinal adjustment of the workpiece sp 470 mm Drive power – workpiece spindle 3,8 kW turning speeds 1-895 U/min Load capacity - Spindle head 200 kg Centre height above the swing bridge 200 mm total power requirement 47 kW weight of the machine ca. 10 t dimensions of the machine ca. 3,54 x 2,83 x 2,3 m Accessories / Equipment: - Pneumatic dressing wheel that extends into the working area Chsdszfqiwjpfx Ahmsc (mounted behind the workpiece spindle) - Coolant system with paper belt filter - Central lubrication - Spindle cooling - Documentation

Condition: refurbished (used), Year of construction: 2025, functionality: fully functional, machine/vehicle number: 1315/451, Completely overhauled: Mechanics, geometry, hydraulics, and electrical parts (checked and/or replaced) Wheelhead: Disassembled, parts cleaned, worn or defective components replaced, motor overhauled, bearings replaced, belts replaced, spindle disassembled, seals and O-rings replaced, adjustments made. Newly painted. Workhead: Disassembled, parts cleaned, worn or defective components replaced, motor overhauled, belts replaced. New spindle bearings. Newly painted. Tailstock: Cjdsw U Ry Nepfx Ahmehc Disassembled, inspected, overhauled. Hydraulics: Disassembled, motor checked, hoses replaced, defective and worn parts replaced. Hydraulic block checked. X-axis: Disassembled, all worn parts such as O-rings, seals, segments, etc. replaced, hydraulic piston overhauled, table ground. Z-axis: Disassembled, table ground, worn or defective parts replaced, hydraulic piston overhauled, newly painted. Electrical cabinet: Completely checked, various relays replaced. Paintwork: Colors: White RAL 9003 and Grey RAL 7011 Geometry according to manufacturer's protocol. Various accessories checked and cleaned. Origin: CH Voltage: 380 / 50 / 3 Net weight: approx. 2,200 kg Customs tariff number: 8460.2920 TECHNICAL SPECIFICATIONS Nominal distance between centers: 600 mm Max. distance between centers (with extended headstock): 750 mm Center height, standard: 125 mm Center height with interchangeable pads for heads: 175–250 mm Max. workpiece diameter (125 mm center height): 250 mm Max. workpiece diameter with interchangeable pads: 350–500 mm Swiveling range of table in each direction: 10° Max. grinding length for flat surfaces (max. width = 200 mm): 900 mm Continuously variable hydraulic table speed: up to approx. 6 m/min Table reversal delay: 0–5 sec Grinding wheel for external grinding, diameter - width - bore: 400x50x127 mm Grinding wheel for flat surface grinding: 250x13x76 mm Wheelhead spindle speed: 1,500/1,700/2,200/3,600 rpm Wheelhead swiveling range: 270°, with indexing every 90° Vertical travel of wheelhead, center height: 125–350 mm Transverse travel of wheelhead: 285 mm Hydraulic rapid traverse stroke: 40 mm Intermittent infeed of wheel by table reversal: 0.001–0.03 mm/dia Continuous infeed for plunge grinding: 0–0.9 mm/dia Micrometric infeed stop, by division: 0.001 mm/dia Workhead swiveling range: 360° Workhead spindle speed, stepless: normal/special: 20–400 / 10–400 rpm Internal taper of workhead/tailstock: Morse 5/3 Wheelhead motor: approx. 4 HP All technical specifications are given without obligation and subject to errors or omissions.

Condition: ready for operation (used), Workpiece diameter with/without steady rest: 400mm/250mm, max. workpiece length: 750mm, spindle head load: 400kg, max. internal grinding diameter: 350mm, max. grinding depth: 500mm, travel X/Z: 300mm/1000mm, max. traverse speed: 15m/min, control system: Siemens Sinumerik. Documentation available. On-site inspection is possible. Chsdox Uq T Depfx Ahmsc

Condition: good (used), Studer S30-12 cylindrical grinding machine TECHNICAL DATA Main dimensions Center height: 125 mm Center width: 400 / 700 / 1025 mm Largest longitudinal slide path: 400 / 700 / 1000 mm Longitudinal slide Table speed: 50 - 5000 mm/min Reversing delay: 0-6 s Smallest automatic travel: 1.5 mm Max. stroke: 400 / 700 / 1020 mm Max. Table inclination: 12 / 30 / 78° Cross slide Swivel range: +- 45° Quick adjustment: 40 mm Feed path with handwheel: 20 mm Largest plunge depth: 1.7 mm Sanding headstock Grinding wheel diameter x width x bore: 450 x 80 x 203 mm Speed: 1340 / 1500 1625 / 1800 / 2000 / 2200 rpm Coarse adjustment: 210 mm Workpiece headstock Swivel range: 0 - 90 Speed range: 30 - 675 rpm Mounting cone: Morse 5 Collets: W25 Tailstock Mounting cone: Morse 3 Adjustment travel of the center: 30 mm Total power requirement: 5 / 8.25 kW Csdpfevca Izsx Ahmshc No liability is assumed for the correctness, completeness and up-to-dateness of the information.

Condition: used, grinding diameter 450 mm grinding length 1000 mm centre height 225 mm Chedszkvucspfx Ahmoc Fotos von bereits gelieferten Maschinen. Mechanische Überholung: -komplette Maschine nach Kellenberger Messprotokoll überholt -Neue servicefreundliche Kabine -Neulackierung Elektrische Überholung: -FANUC Steuerung mit BLUE-SOLUTION -Neu aufgebauter Schaltschrank -Neue Antriebstechnik -Austausch sämtlicher elektrischer Leitungen Berus Druckschalter etc. -Neue Absolut-Glasmaßstäbe in x- und z -Neuer Absolut Drehgeber (Bei-B-Achse) Fotos von bereits gelieferter Maschine mit anderen Optionen. Schleikopfvariante UR/RS: -Schleifscheibenanordnung für Aussen -und für Schrägeinstichschleifen hintereinander! -Dadurch jeweils 400mm Scheibendurchmesser! -Dadurch wesentlich geringere Kollisionsgefahr -Einfacheres programmieren -Schleifscheibenausrüstung jeweils 400x63x127mm -Einrichtung zum Betrieb einer HF-Spindel -Spindel optional gegen Aufpreis -B-Achse CNC gesteuert zum Aussen-Plan- und Innenschleifen in einer Aufspannung. Schwenkbereich +10°/-270° -C-Achse zum Polygonschleifen -Unterteil fest -Schleifkopfmotor 10,0 KW -Reitstock -Marposs Messsystem zur Schleifscheibenvermessung. -Längspositionierung Marposs

Condition: as good as new (ex-display), Year of construction: 2020, operating hours: 200 h, functionality: fully functional, workpiece weight (max.): 150 kg, grinding length: 500 mm, grinding wheel diameter: 455 mm, grinding diameter: 300 mm, workpiece weight between centers: 150,000 g, type of input current: three-phase, workpiece diameter between centers: 500 mm, grinding wheel width: 75 mm, spindle speed (max.): 500 rpm, spindle speed (min.): 10 rpm, grinding spindle motor power: 7,500 W, overall weight: 4,600 kg, Demonstration CNC cylindrical grinding machine with automation setup Brand OKAMOTO Model OGM-350 P NCIII Year of manufacture 2020 Control: Fanuc Oi Model D Operating hours: approx. 200 hours Technical specifications Maximum swing diameter: 320 mm Maximum distance between centers: 500 mm Maximum workpiece diameter to be ground: 300 mm Maximum workpiece weight between centers: 150 kg Maximum workpiece weight: flange + chuck + workpiece: 40 kg Grinding wheel: Diameter x width x bore: 455 x 75 x 127 mm Wheel speed: Continuously variable Circumferential speed: 45 m/sec Grinding headstock (x-axis) Maximum travel: 300 Swivel angle: Non-swivel Workpiece table (z-axis) Travel: 870 mm Swivel angle: 0 – 10° Workhead Fixed/Live Center Design MK 4 Taper Chuck Spindle Bore Diameter 20 mm Spindle Speed ​​10 – 500 rpm Swivel Angle: Non-Swivel Tailstock Tailstock Type: Manual Fine Taper Adjustment Quill Travel 30 mm MK 4 Taper Chuck Drive Power Grinding Wheel Drive 5.5 kW Total Power 20 kVA Dimensions/Weight Length x Width x Height approx. 3400 x 2330 x 1950 mm Machine Weight approx. 4,600 kg Standard Equipment: 2 Carbide Centers Full FANUC Keyboard with Radius Compensation for Creating ISO Programs Workshop Programming: Graphic Software for Grinding and Dressing Cycles with Teach-in Function GAP Eliminator Shoulder Positioning Constant Table coolant flush 3 color LED lamp Documentation Leveling screws and support plates Chedpfezn U S Iex Ahmsc Operating tool set Accessories Automation preparation Automatic door Automation interface Grinding wheel guard fully open when door is open Miscellaneous Signal lamp Tailstock with electric quill retraction 1 flange 1 grinding wheel Options upon request: Paper belt filter on request Clamping devices on request Commissioning and training on request (Commissioning by Okamoto is required for warranty purposes) Transport on request

Condition: good (used), Year of construction: 2001, functionality: fully functional, machine/vehicle number: 400CB1262, workpiece weight (max.): 20 kg, grinding wheel diameter: 350 mm, total width: 1,700 mm, total length: 1,800 mm, total height: 1,600 mm, type of input current: three-phase, overall weight: 2,000 kg, input frequency: 50 Hz, input voltage: 400 V, Universal cylindrical grinding machine Ziersch & Baltrusch Type URS 400 Ergonomy Chodpfxez Db Ewe Ahmec Year of manufacture 2001

Year of construction: 2008, condition: used, functionality: fully functional, machine/vehicle number: TTS10371, Our TT8500 is in very good condition and fully functional. It is equipped with an EPSON manipulator and is very well suited for pre-grinding operations such as with step drills, necking, relief grinding, chamfers, etc. The centerless processing also offers special advantages, especially regarding the concentricity of the tools to be produced. Csdpow H Sguefx Ahmshc

Condition: new, We offer all types of spare parts for your conventional or CNC Karstens/GP cylindrical grinding machine, including components for your tailstock, workpiece spindle head, grinding spindle head, ball screws, glass scales, grinding wheel flanges, drive motors, axis drives (BOSCH SIEMENS), bellows, bearings, K11/K21 infeed control systems—new and used—as well as reversing blocks for the Z axis on an exchange basis. Also suitable for similar Weiss/EMAG/GP cylindrical grinding machines, Studer, Kellenberger, Schaudt, Tschudin, Tacchella, Dannobat, Bahmüller, Fortuna. Chedpforaibvsx Ahmoc

Condition: used, Year of construction: 2003, functionality: fully functional, Siemens Sinumerik 840D control system includes: grinding media preparation, hydraulic unit, and portal loading system for loading and unloading the machine Technical data: Center distance: 600 mm, center height: 180 mm maximum grinding diameter: 355 mm maximum workpiece weight: 150 kg maximum Z-axis speed: 11 m/min minimum Z-axis speed: 0.01 m/min maximum X-axis speed: 7.5 m/min minimum X-axis speed: 0.01 m/min External cylindrical grinding spindle: Grinding wheel standard (outer diameter x width x inner diameter): 600 x 80 x 304.8 mm Grinding wheel peripheral speed: 5 - 50 m/s Power consumption of grinding spindle motor: 11 kW Workpiece spindle: Taper bore of workpiece spindle stock: MK 5 Power consumption: 2.7 kW Codezh Uvaepfx Ahmehc Tailstock: Taper bore of center: MK 4 Coolant tank: 2000 liters, lubricating oil: 30 liters, hydraulic oil: 60 liters Operating voltage: 400 volts, 3 phases Mains frequency: 50 Hz Total machine weight: approx. 5800 kg Operating sound pressure level: 70 dB (A)

Condition: used, Year of construction: 2003, functionality: fully functional, Control system: Siemens Sinumerik 840D Includes: Grinding media preparation, hydraulic unit, and portal loading system for loading and unloading the machine. Technical data: Center distance: 600 mm, Center height: 180 mm Maximum grinding diameter: 355 mm Maximum workpiece weight: 150 kg Maximum Z-axis speed: 11 m/min Minimum Z-axis speed: 0.01 m/min Maximum X-axis speed: 7.5 m/min Minimum X-axis speed: 0.01 m/min External cylindrical grinding spindle: Grinding wheel standard (outer diameter x width x inner diameter): 600 x 80 x 304.8 mm Grinding wheel peripheral speed: 5 - 50 m/s Power consumption of grinding spindle motor: 11 kW Workpiece spindle: Taper bore of workpiece spindle: MK 5 Power consumption: 2.7 kW Cjdpfxszh Ux Ij Ahmehc Tailstock: Taper bore of center: MK 4 Coolant tank: 2000 liters, Lubricating oil: 30 liters, Hydraulic oil: 60 liters Operating voltage: 400 volts, 3 phases Mains frequency: 50 Hz Total machine weight: approx. 5800 kg Operating sound pressure level: 70 dB (A)

Condition: used, Year of construction: 1982, grinding diameter 630 mm grinding length 600 mm centre height 320 mm Cedpsvq R Uzsfx Ahmohc Maschine wird überholt nach Kellenberger Messprotokoll und neu lackiert. Die anfällige Güttinger Steuerung wird durch die zeitgemäße BEMA X Steuerung ersetzt. Das heißt die Maschine erhält in diesem zuge auch eine komplett neue Elektrik. Siehe Beispielfotos. Maschine mit verstärktem Werkstückspindelstock zum fliegend Schleifen von schweren Werkstücken. Die Werkzeugmaschine entspricht zum derzeitigen Zeitpunkt nicht den grundlegenden Sicherheits- und Schutzanforderungen wie in der BetrSichV 2015 genannt. Eine Anhebung des erforderlichen Mindest-Schutzzieles ist mittels einer Gefährdungsbeurteilung nach BetrSichV zu ermitteln.

Condition: used, Year of construction: 2001, functionality: fully functional, Control system: Siemens Sinumerik 840D Includes: Grinding media preparation, hydraulic unit, and portal loading system for loading and unloading the machine. Technical data: Center distance: 600 mm, Center height: 180 mm Maximum grinding diameter: 355 mm Maximum workpiece weight: 150 kg Maximum Z-axis speed: 11 m/min Minimum Z-axis speed: 0.01 m/min Maximum X-axis speed: 7.5 m/min Minimum X-axis speed: 0.01 m/min External cylindrical grinding spindle: Grinding wheel standard (outer diameter x width x inner diameter): 600 x 80 x 304.8 mm Grinding wheel peripheral speed: 5 - 50 m/s Power consumption of grinding spindle motor: 11 kW Workpiece spindle: Taper bore of workpiece spindle: MK 5 Power consumption: 2.7 kW Tailstock: Taper bore of center: MK 4 Coolant tank: 2000 liters, Lubricating oil: 30 liters, Hydraulic oil: 60 liters Operating voltage: 400 volts, 3 phases Mains frequency: 50 Hz Total machine weight: approx. 5800 kg Operating sound pressure level: 70 dB (A) Chsdpjzh Uvtsfx Ahmoc

Year of construction: 2014, condition: ready for operation (used), A Karstens cylindrical grinding machine from 1992, which was completely overhauled and modernized in 2014, is available. Center width: 1000mm, center height: 180mm, grinding diameter: 360mm, max. workpiece weight center/flying: 250kg/70kg, grinding wheel diameter: 400mm. Spindle holder: MK4, speed: 450rpm, swivel range: 90°, quill holder: MK4, quill stroke: 45mm, quill force: 600N. Table swivel: 10°, infeed spindle: 80mm, rapid traverse: 50mm, coarse adjustment: 280mm, weight: approx. 3800kg. Including 3x centering points and grinding wheels as good as new. Documentation available. On-site inspection is possible. Csdpev Suftjfx Ahmehc

Condition: used, Year of construction: 1989, grinding diameter 280 mm grinding length 630 mm centre height 145 mm weight of the machine ca. 2,3 t dimensions of the machine ca. 2,90x1,65x1,50 m TOS Hostivar BUAJ 28/630 – robust conventional universal cylindrical grinding machine The machine is a conventional universal cylindrical grinding machine designed for precision grinding of cylindrical and conical workpieces. The BUAJ series is known for its robust construction and suitability for demanding industrial grinding applications. Technical specifications - Manufacturer: TOS Hostivar - Model: BUAJ 28/630 - Year of manufacture: 1989 - Machine type: Universal cylindrical grinding machine / centre-type cylindricalgrinder - Control: Conventional, non-CNC - Max. grinding diameter: 280 mm - Max. grinding length: 630 mm Chsdpfxjz Hqapj Ahmjc - Distance between centres: 630 mm - Max. workpiece weight between centres: approx. 70 kg - Centre height: approx. 145 mm - Workhead speed range: approx. 22.4–710 rpm - Grinding wheel: approx. Ø 400 × 50 mm - Main drive power: approx. 9.3 kW - Machine dimensions (L × W × H): approx. 2,900 × 1,650 × 1,500 mm - Machine weight: approx. 2,300 kg - incl. manuals

Condition: new, Year of construction: 2022, grinding diameter:260 mm grinding length:1000 mm centre height:130 mm dimensions of grinding wheel:400x60x127 mm grinding wheel speeds:1700,1900,2200 U/min grinding head swivelling:+/- 30 Grad table swivelling +/-:9 Grad Tailstock spindle taper:4 MK grinding wheel motor:4 kW hydraulic motor:1,5 kW work piece motor:0,37 kW net weight:2400 kg gross weight:2950 kg PLC control:Siemens S7 tailstock sleeve movement:pneumatic, via foot padel operating panel:New Rittal operating panel with touchscreen screen from Siemens centers sleeves:2 grinding wheel flange:2 unused cylindrical grinding machine, manufactured by ABA type URS 400 Year, 2009 Chodpfxeg N Nh Do Ahmsc Further technical data, and standard and optional equipment, as defined in Appendix. Payment: 100% before loading of the machine Warranty: no

Condition: used, functionality: fully functional, Kellenberger cylindrical grinding machine in very good condition. Available at a favorable price. Price significantly reduced !!!!! Cedpjw Dy Rqsfx Ahmehc

Condition: used, Year of construction: 1995, grinding diameter 350 mm grinding length 1000 mm centre height 175 mm Teilüberholte Maschine mit Messprotokoll nach Neumaschinentoleranz Chjdpfx Ahsyatx Ssmjc NEUE Steuerung Eckelmann ENC mit BEMA Schleifsoftware KEL-ASSIST für Kelco 90 numerisch gesteuerte B-Achse Innnschleifrinrichtung Dia 80mm Schleifscheibe links Durchmesser 400mm Schleifscheibe rechts Durchmesser 300mm Innenschleifspindel HJN 828 hydraulischer Reitstock Mikroverstellung KEL SET Messsystem

Condition: ready for operation (used), Year of construction: 2004, functionality: fully functional, • Year 2004 • In our possession since 06/2023 • Complete gripper setup, with two modified grippers for Ø14 and Ø16 • Automated pallets for Ø3-4-6-10-12 • Various grinding wheels for roughing and finishing, some new, for both metal and HSS • Parkair electrostatic dust extractor • New user interface keyboard (3-4 years old) • New workpiece rotation belt (to be replaced in 2025) • Less than 100 operating hours since 2023 Codszcvakepfx Ahmshc • Dedicated Transor filtration tank, year 2007, maintained with filter replacement and complete functionality check, with service performed in 07/2023 (over €3000 + VAT), less than 100 operating hours since maintenance -separate sale can be considered- • Price for machine + filtration system: €40,000

Condition: used, Year of construction: 1981, Technical details: grinding diameter: 240 mm grinding length: 700 mm centre height: 125 mm table length: 1525 (schwenkbar) mm distance grinding spindle - table min./max.: 225/410 mm rpm speed range - grinding wheel: 1590 U/min grinding wheel dia. (unused wheel): 600 mm grinding wheel dia. (used wheel): 450 mm cutting speed: 50 m/s total power requirement: 13 kW weight of the machine ca.: 5,5 t space requirements of the machine approx.: L:2,8xB:2,2xH:1,8 m Cylindrical grinding machine, semi-automatic operation - grinding spindle head -adjustment 185mm - grinding spindle head-infeed 0,001-0,05 mm/min continuous - rotation workpiece 50-500 rpm continuous machine is equipped: - sleeve with hydr. retraction - cooling device - trueing device Chedpfx Asu Ng Avjhmoc - grinding wheel balancing - transverse delivering device for grinding spindle head - hydr. adjustment of grinding table. Upper table swivable. Documentation i.D. *

Condition: used, Year of construction: 2005, Junker cylindrical grinding machine, type EJ 10 Year of manufacture: 2005 Control system: Siemens 810 Distance between centers: 150 mm Center height: 100 mm Maximum workpiece weight: 5 kg Maximum grinding wheel diameter: 400 mm Maximum grinding wheel width: 63 mm Grinding wheel bore: JUNKER spindle bore 27 mm This offer is exclusively aimed at business operators within the meaning of §14 of the German Civil Code (BGB). Chodpfx Asznx Hcohmoc

Condition: excellent (used), Year of construction: 1974, center height: 250 mm, grinding length: 2,500 mm, grinding wheel diameter: 750 mm, grinding diameter: 500 mm, Max. grinding diameter: 500mm Max. grinding length: 2500mm Grinding wheel diameter: 750mm Csdpfx Ahszm N D Nemshc

Condition: ready for operation (used), Year of construction: 2012, functionality: fully functional, machine/vehicle number: 155847, Round grinding machine Knuth RSM 1000, year of manufacture 2012, fully functional, with internal grinding attachment. Chsdpfxozyltms Ahmoc Condition: fully functional Year of manufacture: 2012 Location: West Saxony Price: on request Technical data: Manufacturer: Knuth Werkzeugmaschinen GmbH Type: RSM 1000 Serial number: 155847 Power: 9.5 kW Grinding length: 1,000 mm Grinding diameter: up to 320 mm Center height: 180 mm Dimensions: L 3,600 × W 1,650 × H 1,800 mm Machine weight: approx. 3.7 t Equipment: Digital 2-axis position display (DRO) Internal grinding attachment (standard) Steady rest (standard equipment) Central lubrication system Coolant system Description: For sale is a Knuth RSM 1000 round grinding machine, manufactured in 2012, with a digital 2-axis position display. With a grinding length of 1,000 mm and a grinding diameter of up to 320 mm, the machine is suitable for both single-part machining and small-batch production. It comes standard with an internal grinding attachment and a steady rest for machining long workpieces. The machine is fully functional. Inspection and test run possible at the location in West Saxony by appointment. Price: on request Other machines available from site liquidation Takeover of the location negotiable.

Condition: used, Year of construction: 2010, grinding diameter 350 mm grinding length 1000 mm centre height 175 mm Control Fanuc 310is CNC control GE Fanuc 310is Hand panel for CNC control GE Fanuc Wenger loader optional Turned part with automatic indexing 1° Grinding head UR 1-2-3 Grinding wheel equipment left 500 x 80 mm Grinding wheel equipment right 400 x 63 mm Operating unit for one high-speed internal grinding spindle MFV / MFZ High-frequency internal grinding spindle MFN 1090 Chjdpfx Ahjy U N Hiemjc Coolant supply through the workpiece spindle Dressing unit on the upper table Swivelling holder for PCD diamond plates Basic module for KEL-TOUCH gate sensor and KEL-BALANCE balancing devices KEL-TOUCH lead sensor for universal grinding head variants R / RS / UR / URS KEL-TOUCH on the workpiece headstock for internal and external grinding Preparations for Movomatic ESZ 400 or Marposs P7 ME measuring controls Preparation for external filters Cooling lubricant switch-off for table devices Full casing emulsion Emulsion sanding mist extraction system Maintenance unit for additional pneumatic functions Preparation for KEL-VITA gantry loader KEL-POS, MOVOMATIC: C25 measuring probe Hydraulic preparation for arobo bezel