Used C&U Ball Bearing for sale (75,050)

Condition: new, functionality: fully functional, Year of construction: 2026, Dry and Wet Ball Mill: Structure, Operation, and Technical Details A ball mill is a fundamental grinding device used in mineral processing, cement manufacturing, chemical production, and other industrial applications. It works by rotating a cylindrical shell filled with grinding media—usually steel balls—causing impact and friction that reduce materials to fine powder. Based on the grinding environment, ball mills are classified into dry and wet types, each suited for specific materials and process requirements. Gbsdpsq Nx Alofx Apwsr Working Principle Both dry and wet ball mills operate on the same mechanical principle. The rotating cylinder, driven by a motor through a gear system, lifts the grinding media and material along the inner wall. As the rotation continues, the balls fall under gravity, striking and grinding the material. The difference lies in the presence or absence of a liquid medium during grinding. Dry Ball Mill A dry ball mill is used when the material must remain moisture-free or when water could affect product quality. It is commonly applied in cement clinker, limestone, quartz, and refractory material grinding. The discharge can be either grate type or overflow type, depending on the desired fineness. Technical Features: Feeding size: ≤25 mm Discharge size: 0.075–0.4 mm Capacity: 0.65–90 t/h Liner material: High manganese steel or wear-resistant alloy Drive system: Gear-driven or direct-coupled motor Dust control: Equipped with air exhaust and dust collector Advantages: Suitable for materials sensitive to moisture No drying process required after grinding Lower corrosion risk and simpler maintenance Easier material classification and separation Limitations: Dry grinding produces more dust and heat, requiring efficient ventilation and dust collection systems. Wet Ball Mill A wet ball mill operates with water or another liquid medium added to the material. The slurry formed during grinding improves efficiency by reducing friction and preventing excessive heat buildup. It is widely used in ore beneficiation, ceramics, and chemical industries. Technical Features: Feeding size: ≤25 mm Discharge size: 0.074–0.2 mm Capacity: 0.65–615 t/h Liner material: Rubber or high-chromium steel Discharge method: Overflow or grate type Auxiliary equipment: Classifier, pump, and thickener for slurry circulation Advantages: Higher grinding efficiency and finer particle size Reduced dust and noise levels Continuous operation suitable for beneficiation circuits Better control of particle uniformity Limitations: Requires drying if the final product must be in powder form and involves more complex slurry handling. The selection between dry and wet grinding depends on the material characteristics, downstream process, and environmental conditions. Dry mills are preferred for materials that must stay moisture-free, while wet mills are ideal for fine grinding and slurry-based processes. Conclusion Dry and wet ball mills share the same mechanical structure but differ in their grinding environment and application scope. The dry type offers simplicity and low maintenance for moisture-sensitive materials, while the wet type provides higher efficiency and finer output for mineral and chemical processing. Understanding their technical parameters and operational differences ensures optimal equipment selection, improved productivity, and reliable performance in industrial grinding operations.

Year of construction: 2026, condition: new, ceramic ball mill ,Batch ball mill ,also called ceramic ball mill ,it is used for fine grinding of feldspar,quartz,clay,ore and so on.The ceramic ball mill is mainly used for material mixing, grinding,uniform product fineness,and saving power.It can be dry or wet.The machine can use different liner types according to production needs to meet different needs.The fineness of the grinding operation is controlled by the grinding time ceramic ball mill Working principle when ball mill working,steel balls inside drum will rotate with the drum to some height,and then steel balls fall down with materials to reach the point of grinding. Working Principle of Ceramic ball mill Gbedevzx Aujpfx Apwsr ceramic ball mill ,Intermittent ball mill grinding operation is finished in the cylinder body. When the cylinder rotates, materials ascend to a certain height and then fall along a certain path due to the balls' gravity. Two forces are generated on the balls inside. One is the force on balls through tangent direction; the other is a opposite force in the contrast to the diameter of balls, as a result of the force generated when the balls slide down. These two forces will constitute a couple for the steel balls. The balls are squeezed between the cylinder and the adjacent steel balls, so the couple can make unequal-sized friction force. The balls will orbit along with the cylinder axis and then fall down, which can produce a strong impact force on the ores in the cylinder body and, as a result, the ores will be crushed. In conclusion, the ores in the cylinder body are mainly crushed by composite effect of peeling force, impact force and extrusion force. Ceramic ball mill also named Intermittent ball mill which adopts the wet intermittent operation, is used for fine grinding and mixing the material such as feldspar, quartz, clay ceramic raw materials. The discharging and the mud size can through through 1000 sieve pore. This machine is high milling machinery, materials should be Broken in the fineness of the state into the grinding mill to get the highest efficiency and economic benefits. The cement mill is key equipment for the grinding process of the cement clinker after the crushing process of it. It is mainly used in the cement silicate product industry. After long term design and manufacture of the cement mill, our company now has series of cement mill with various specifications to meet with different requirement from our customers. Features of Cement Mill Our company adopts suitable transmission methods according to different specifications. We have brim drive and center drive as transmission form. The cylinder adopts new type step lining to increase the grinding area. And it is easily repairable and changeable. The new designed separate-chambered structure adopts flexible lifting blade and fixed lifting blade and it is easily fixed and repaired. Technical Details We have different models and options for different requirements, please contact us for more info.

Condition: used, Proximity switch, cylinder sensor, magnetic field sensor -Product type: BMF 315K-PS-C-2-PU-05 -Number: 6x available Godpfsd Tpkxox Apwsbr -Price: per piece -Weight: 70 g

Condition: ready for operation (used), Balluff BIS C-620ST2-S evaluation unit, version 1.3, used, 100% functional. Gbedpfx Aei D T D Sjpwjr

Condition: new, Balluff BIS00A9 BIS C-602-019-xxx-03-KL2 24 Vdc evaluation unit with BIS C-670-00,3 cable and BCC011N connector, unused, 100% functional, delivery as per photos. Gbsdpfxoy Np Ene Apwor

Condition: ready for operation (used), Balluff BIS C-620ST2-S Evaluation Unit, Software/Hardware Version 1.3, used, 100% functional. Gedpfx Apei D T D Iswjbr

Condition: ready for operation (used), Balluff BIS C-6002-19-…-03-ST11 0733 DE / BIS C-650 Evaluation unit, used, shows normal signs of wear and tear, 100% functional, scope of delivery as shown in the photos. Gedpsi D T Dyjfx Apwobr

Condition: ready for operation (used), Balluff BIS C-620ST2-S evaluation unit, used, in good condition, 100% functional. Gbedpfx Apei D T D Dswsr

Year of construction: 2019, condition: new, Brand C&U Group Shanghai Bearing Co Ltd Gbjdpfx Apeqa Anqjwjr Model: TM6307/41RS Year of manufacture: Unused Weight (kg) approx 6790 net Number of pieces in stock 17350 ( approx ) Made in China Comments Contact us for min. quantity Terms of sale Contact us for min. quantity

Condition: new, Year of construction: 2026, A superfine ball mill is a type of milling machine that is used to grind materials into very fine particles. This type of ball mill has some distinctive features that make it especially suitable for processing even the hardest materials with low contamination and minimal wear. It is commonly used in various industries, including pharmaceuticals, minerals, pigments, and chemicals, for producing micro powder or nanoparticles. Here are some key features and considerations for a superfine ball mill for micro powder: 1. High Grinding Efficiency: Superfine ball mills are designed to achieve high grinding efficiency by utilizing grinding media with a relatively small size, leading to a large surface area for grinding. 2. Precision Control: These mills often come with advanced control systems to regulate parameters like rotation speed, temperature, and grinding time, allowing precise control over the particle size distribution. 3. Specialized Design: The mill is typically designed with features to minimize contamination, such as using materials resistant to wear and corrosion. Some mills also have cooling systems to prevent overheating during the milling process. 4. Variety of Materials: Superfine ball mills can handle a wide range of materials, including both brittle and fibrous substances. They are often used for milling hard materials that require fine grinding, such as ceramics, minerals, or pigments. 5. Size Reduction to Micro or Nano Level: The primary goal of a superfine ball mill is to reduce particle size to the micro or even nano level. This is achieved by the intense grinding action that occurs within the mill. 6. Classifier System: Some superfine ball mills incorporate a classifier system to control the particle size distribution more precisely. This allows for the separation of fine particles from coarser ones during the milling process. 7. Batch or Continuous Operation: Depending on the specific design, these mills can operate in either batch or continuous mode, offering flexibility based on the production requirements. Gbsdpfx Asq Nf Uwepwor 8. Safety Measures: Safety features may be included, such as monitoring and control systems to prevent overloading, overheating, or other potential issues during operation. When selecting a superfine ball mill for micro powder production, it's important to consider the specific requirements of your application, the characteristics of the materials you're working with, and the desired final particle size distribution. Always follow the manufacturer's guidelines for operation, maintenance, and safety to ensure optimal performance and longevity of the equipment.

Condition: used, Falling Ball Viscometer like Thermo HAAKE Type C THERMO ELECTRONIC CORPORATION Type 002-7580 Serial No.: With the Thermo falling ball viscometer, you can measure viscosity precisely without electricity, using only a stopwatch. It allows for accurate measurement of the viscosity of transparent Newtonian liquids and gases. Gbjdpfxexcbnrj Apwer Measuring principle: A ball moves by rolling and sliding inside an inclined cylindrical tube filled with the liquid to be tested. The time it takes for the ball to travel a defined measuring distance is recorded. By swiveling the measuring section, the return movement of the ball can also be used for measurement. The result is displayed as dynamic viscosity in mPa·s. Max. viscosity: 100,000 mPa·s Min. viscosity: 0.5 mPa·s Standards: DIN 53015, ISO 12058 Reproducibility: < 0.5% Thermometer: -1 °C to +26 °C (read-out accuracy 0.1 °C) Ball set Type 800-0182 with 6 balls (balls 1 and 2 made of borosilicate glass; balls 3, 4, 5 and 6 made of nickel-iron alloy) Recommended for: Chemical industry (polymer solutions, solvents, printing inks) Pharmaceutical industry (raw materials, glycerin) Mineral oil industry (oils, liquid hydrocarbons) - Inner glass tube (falling tube) damaged on one side at the screw socket (see images). Replacement part no. 002-6968 Dimensions of inner tube: outer diameter 20 mm; inner diameter 16 mm; wall thickness 2 mm; length 225 mm Dimensions (W x H x D): 170 x 310 x 220 mm Weight: 3.5 kg

Condition: excellent (used), Year of construction: 1985, Control: Philips B2T Swinging diameter: 640 mm Machining diameter, longitudinal: 550 mm Gjdpfszpy Rrjx Apwjbr Machining diameter on the turret: 450 mm Turning length: 1000 mm Spindle speed: 2,240 rpm Spindle bore: 103 mm 12-position turret, VDI 60 Chip conveyor

Condition: good (used), Year of construction: 2011, Control system: Siemens 840 D pl Gjdpfxozint Ie Apwobr X-axis 650 mm – Y-axis 600 mm – Z-axis 500 mm A-axis +- 115° - C-axis 360° Spindle 18,000 rpm, power 13 / 10 kW, tool holder HSK-A63 Tool changer 32 tool positions - additional magazine 87 positions NC rotary table ø280 PW160 with pallet clamping system, automatic cabinet doors, hydraulic and pneumatic extension, pallet changer PW 160-400x400 mm, pallet storage system control 3D tool radius correction, A-axis standard version, A-axis position offset Internal coolant supply 80 bar, includes: KNOLL paper band filter, KNOLL chip conveyor, standard coolant system, clean air supply for measuring probes, machine bed flushing, scraper conveyor Air blast through the spindle center, manual cabinet roof, laminated safety glass, rotating clear window, electric thermal compensation, electric manual control module, measuring probe Renishaw incl. BLUM tool breakage/measurement, chip flushing gun 7 pallets 400/STM190 with thread drilling grid Oil mist extraction system LTA, technical documentation (German) Total spindle hours: 18,667 h, new spindle in 2025 at 16,560 h.

Condition: used, Year of construction: 2011, travel -x axis 650 mm travel -y axis 600 mm travel -z axis 500 mm control HEIDENHAIN - iTNC 530 number of spindle speeds 18.000 U/min NC rotary indexing table Ø 630 mm numbers of positions in the tool changer 32 tool taper SK 40 5-axis simultaneous machining center | HERMLE - C 30 U equipped with ITC (80 bar), NC swivel rotary table, tool changer & chip conveyor. The machine has only 13.924 H spindle hours. The machine is in a well-maintained condition. Gedpfjzczhaox Apwsbr Please refer to further technical details in the attachement of the offer. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - #Tags: C30U | C-30U | C-30 U

Condition: used, Year of construction: 2007, travel -x axis 650 mm travel -y axis 600 mm Gedpezaf Husfx Apwjbr travel -z axis 500 mm control HEIDENHAIN - iTNC 530 number of spindle speeds 10.000 U/min NC rotary indexing table Ø 630 mm numbers of positions in the tool changer 32 tool taper SK 40 5-axis simultaneous machining center | HERMLE - C 30 U equipped with ITC (80 bar), NC swivel rotary table, tool changer & chip conveyor. The Z-axis motor was replaced in 2025, and the spindle was already replaced in 2015 at 7,100 operating hours. The machine is in a well-maintained condition. Please refer to further technical details in the attachement of the offer. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - #Tags: C30U | C-30U | C-30 U

Condition: good (used), Year of construction: 2010, 2010 Hermle C50 U MT Dynamic 5 Axis Vertical Machining Centre With Turning Capability & Dual Siemens 840D Controls Gbedpfjzt Nywjx Apwjr Table Dimension Ø1,000mm (16 16mm H7 'T' Slots). Maximum Table Load 2,000kg (1,000kg Turning). Maximum Component Dimension Ø1,000 x 810mm High. Axis Travel 'X'=1,000mm, 'Y'=1,100mm, 'Z'=750mm , 'A'=+100°/-130°, 'C'=360°. Rapid Traverse 'X'60m/min, 'Y'=60m/min, 'Z'=65m/min. Maximum Spindle Speed 12,000rpm (56kW Motor). Maximum Turning Spindle Speed 500rpm. Spindle Taper HSK A100. 84 Position ATC (Additional ZM 42 Magazine). Maximum Tool Ø250mm, Maximum Tool Length 430mm, Maximum Tool Weight 30kg. Chip To Chip Tool Change Time 7s. S/No. 19871 (2010). Machine Hours 89,860.9 , Drive Hours = 74,916.2, Spindle Hours 10,585.7, Work Spindle Hours 566.0 (New Spindle Installed 2023). With Knoll KF 400 Through Coolant Paper Filtration System, Knoll S-1 Chip Conveyor, Swarf Bin, Handte Mist Extraction Unit, Hyfra Pedia VWK70-DE-S Chiller Unit, Brand New Blum Laser Toolsetter, Quantity Of Tooling In ATC, Renishaw MP40-2 Spindle Probe, Visiport TK2 Spin Window, Blum Reference Tool In Carry Case, Heidenhain Calibration Kit In Carry Case, Automatic Doors, Retractable roof For Loading & Technical Manuals. Weight 21,500kg. Technical Agreement/Specifications Are Located In A Folder Inside Control Panel. Machine Is A Clean & Very Good Condition, Only Issues Are Internal Lights Not Working (No Faults As They Were Repaired Last Month Through Kingsbury). We Run Fusion 360 Through The Machine.

Condition: excellent (used), Year of construction: 1998, x-travel 800 mm Gbsdpfx Ajx Dndcspwsr y-travel 600 mm z-travel 500 mm

Condition: excellent (used), Year of construction: 2015, operating hours: 22,387 h, Manufacturer: Hermle | Type: C 400 U | Serial number: 23589 | Year of manufacture: 2015 | Operating hours: approx. 8939 | Control system: Heidenhain TNC 530; Travel ranges (X/Y/Z): 850 / 700 / 500 mm; Swivel/rotating table: Ø 630 mm, integrated, C- and B-axis. Gedpozq Dkxsfx Apwebr Tool magazine: 38 positions; Spindle speed: up to 18,000 rpm; Drive power: approx. 20 kW; Machine weight: approx. 8,000 kg; Cooling system: Knoll 850 K-1 with high-pressure unit; Coolant system; Central filter with return conveyor and heat exchanger; NC swivel rotary table; The operating hours refer to spindle operation. | Dimensions: approx. 4000 mm x 3400 mm x 2700 mm (W x H x L) | Approx. 10,500 kg | The specified dimensions are approximate values. All other information is provided without guarantee. | Grey | Steel Category: Machines and technical equipment

Condition: used, Roller conveyor with ball-bearing metal rollers and feet Roller width: 495 mm Roller diameter: 50 mm Total length of the roller conveyors: 1950 mm Gedezinwyepfx Apwsbr Number of rollers: 25 Total width: 540 mm Overall height: 500 - 700 mm - Ball-bearing metal rollers - Roller spacing can be flexibly adjusted - Perforated side profiles with screwed-in rollers and spacers - 2 frame feet with height-adjustable foot supports Weight: approx. 45 kg Good condition

Condition: new, 2 pieces = 1 set NSK AXIAL-RADIAL THRUST BALL BEARING 76.2x110x16 Gbjdezh E Igjpfx Apwer 76 TAC 110 A DB C11 PN7 A PRESSURE ANGLE 60° INSTALLATION IN O-ARRANGEMENT

Condition: used, Ball bearings, bearings, bearing set, accurate, radial ball bearings, roller bearings -Type: 71944CTP2HUL -Lubricating groove Gbsdpod Nw H Defx Apwer -Bore: Ø 220 mm -Outer diameter: 300 mm -Width: 75 mm -Number: 4x bearings available -Price: per piece -Weight: 14 kg

Condition: used, Cylindrical roller bearings, spherical roller bearings, deep groove ball bearings -FAG: 6218MA.C3 -Outer diameter: 160 mm -Inside diameter: 90 mm Gjdpfx Apod S Ibbjwobr -Width: 30 mm -Price: per piece -Number: 2 pieces -Weight: 2.7 kg

Condition: used, Axial deep groove ball bearings, axial deep groove ball bearings, thrust ball bearings, thrust bearings -Manufacturer: FAG, axial deep groove ball bearing 51164PM, OVP Gsdpfxef S Nclj Apwobr -Outer diameter: 400 mm -Dimension: Ø 400 x 65 mm -Weight: 18.4 kg

Condition: used, Ball bearings, deep groove ball bearings -Number: 80x stock available -Price: per piece -Interior diameter: Ø 10 mm -Outer diameter: Ø 28 mm Gbjdpfx Apob A S Dkjwjr -Width: 8 mm -Weight: 0.2 kg/piece

Condition: excellent (used), Axial groove ball bearings, axial groove ball bearings, axial ball bearings, axial bearings -Manufacturer: ISB, axial ball bearing 51144M -Main dimensions according to: ISO 9001:2000 -Outer diameter: 270 mm -Width: 37 mm -Inner diameter: 220 mm -Number: 4x ball bearings available Gjdpsf Ngcgsfx Apwsbr -Price: per piece -Weight: 4.5 kg