Side-Wiring Magnetic Catches for Panel Fitting. Just get them with the bearing pre-loaded. A Bosch aluminum extrusion boom has been used as the rotating bar. With a streamlined process of proven products, Bosch. Thanks to the versatility of aluminum extrusions, A-Line Automations provides a wide variety of aluminum extrusion products suitable for. These. In stock and ready to ship. AluFrame Assistant is a parametric 3D CAD software solution which is integrated into SOLIDWORKS by 10. We are giving our customers and users a competitive advantage through safe, efficient, intelligent and high performance solutions. Pieces are about 30" long, some are longer. Attachments are included. Kit of profiles and connections to get you started on Bosch aluminum extrusion designs. SELECT PRODUCT TO REQUEST QUOTE. Waterproof. Days to Ship : 1 Day. 100x200 Aluminum Extrusion - 8-45 Series, Base 50. We have gussets, specialty connectors, cube connectors, and much more to make your project as seamless as possible. Standard catalog items, custom brackets, panels, and table tops. Due to increased freight costs, some of the products below may have increased pricing for lengths of 2500mm+. Due to increased freight costs, some of the products below may have increased pricing for lengths of 2500mm+. Structural Aluminum Extrusions / Bosch Rexroth Strut Profile 20x20 3N, Bundle of 20 Sticks, Length=3000mm, 6mm T-Slots; Bosch Rexroth Strut Profile 20x20 3N, Bundle of. © Bosch Rexroth Corporation 2014-2023, all rights reserved. ISO 9001:2015 CERTIFIED. Our extrusion line of TSLOTS suits small and large applications. The Dewalt miter saw is the best brand of the best saw for cutting aluminum extrusion. To the Rexroth Store. com. Attachments for 3931-Series Dust Extractors. Ergonomic working for different employees. Join 9,320,000 engineers with over 4,830,000 free CAD files Join the Community. 8M high quality products and 80. Buy Bosch Rexroth 30x120 Structural Aluminum Framing Profile Bundles (3842541939) online today with confidence thanks to our real-time inventory availability information. Our system profiles enable you to create such components as machine frames, ergonomic workstations, shelves or safety fences without any major. User-oriented, clear and comprehensive: Bosch Rexroth offers a variety of tools to support the identification and configuration of suitable product solutions. Whether you simply need a wire mesh or acrylic panel for your aluminum t-slot door or a full-size machine safety guarding unit for your entire shop, we have all of the components and various types of plastic panels needed. Flat Aluminum Extrusions - No Shoulder, Slot Width 8 mm. Free shipping. . Choose from an extensive portfolio of tools that assists you in the selection of standard products, customized variants or speeding-up your engineering. View our complete catalog of Aluminum Extrusion Brackets, Gussets & Plates (pdf – 2. Bosch is one of the most widely used brands of extrusions, ensuring these blocks maintain versatile applications for any. You can contact us via e-mail if you need support. 2. Attachments for Cordless Vacuum Cleaners. com. 00. . 4705 1018 Seabrook Way Cincinnati, OH 45245 Among the companies providing complete modular aluminum extrusion systems are names like 8020 (duh- right), Parker IPS, ITEM, Maytec, MK Systems, Bosch Rexroth, and many others. Due to increased freight costs, some of the products below may have increased pricing for lengths of 2500mm+. •Extrusions have a clear anodized finish. Over time, cleaning maintenance is necessary to permit the proper movement of the pressure ring. Our 20mm x 20mm metric extrusion comes with four open t-slots, one on each 20mm face. Kit of profiles and connections to get you started on Bosch aluminum extrusion designs. SELECT PRODUCT TO REQUEST QUOTE. Aluminum structural framing is a versatile product that provides endless design options for your applications. It has a powerful 15amp and 38,00 RPM motor with durable construction and a powerful engine for flexible work. Free standard shipping on orders over $60. Weight. 015. View/Download. PROFILE 20X20B. In addition to providing outstanding products, we utilize. ST-GP-001-0009. The demands on modern, lean production are more than just focusing on individual. Availability: 31 in stock. Bosch Aluminum Extrusion T-Slotted Rails 45x60mm $5. Number. 3%View seller's store: srlsales. 43. Find Similar websites like gapengineering. A-Line Automation provides a wide variety of Series 30 aluminum profiles so that you have the necessary versatility to put together aluminum extrusions in any kind of design. Simple frames and bases can be used to store and display product. Buy Bosch Rexroth 20x20 3N Structural Aluminum Framing Profile Bundles (3842517180) online today with confidence thanks to our real-time inventory availability information. – Aging. 9 /5 · 12 reviews · "fast delivery"Chinese wholesalers provide you with multiple shapes of computer aluminum extrusion profiles, including L-angled, square, solid round tubes, hollow tubes, T-shaped bars, J caps, Z clips, dividers, channels, sliding track systems, framing systems, wheels, gaskets, door locks, and so on. 80/20 UNIVERSITY. Compatible with 45 Series Fasteners and Accessories. Okorder. Miles Graydon. It's frequently fabricated into raceways, decorative trim, and other parts where strength and hardness are not required. Each model features one or more 8mm T-slot profile openings, and any side that does not have an opening has smooth siding. formance, reliability, and accuracy in industrial hydraulics. Our system profiles enable your to create such components as machine frames,. STEP / IGES, STL, Rendering, May 22nd, 2022 Corner Bracket for Alumin. 45x90 Aluminum Extrusion - 8-45 Series, Base 45. Safe, efficient, intelligent and powerful solutions for factory automation, mobile. We offer. Threaded on Both Ends Alloy Steel Shoulder Studs. Parco T-Slotted Aluminum Extrusion has over 80 aluminum extrusion profiles and over 2500 t-slot components that our customers can either purchase individually, as pre-machined kits, or in fully. Metric extrusions consist of 20 Series and 40 Series. Once you and your service provider take all the factors regarding your project into account, you can then calculate the specific industry tolerances to follow. Find Inspiration for Your Next Project. Bosch Aluminum Extrusion T-Slotted Rails 45mm x 60mm or 1. Compare to leading brands like 80/20. Buy Bosch Rexroth 60x60 Structural Aluminum Framing Profiles (3842557212) online today with confidence thanks to our real-time inventory availability information. SKU: R999001283-PDF The Bosch Rexroth. Whether you are creating a simple DIY project with aluminum extrusion or are building a complete Lean Manufacturing setup we have the T-slot Fasteners that you are looking for. The old part number was 8981004773 or 8981992026. The GrabCAD Library offers millions of free CAD designs, CAD files, and 3D models. Choose from our selection of aluminum extrusions, including T-slotted framing rails, T-slotted framing structural brackets, and more. From basic frames to. Showing all 16 results. Bosch structural framing can be designed and assembled to create machine safety guards and barriers, workstations, racks, fixtures, and other material handling equipment. Economy Type Powerful Magnet Catch 40. We design all of our aluminum door components to be sturdy and strong so that you can safely enter and. 40 x 40mm. The aluminum is pushed t. Similar Site Search. A heavy-duty frame made of aluminum Bosch extrusions is placed around the setup providing a secure anchor point for the muon veto panels. In addition, aluminum is an excellent thermal conductor, which makes it ideal for applications such as lighting fixtures and heat exchangers. A-Line Automation is now the Carolinas distributor for Parco T-Slot Innovations! Parco offers a complete line of fractional t-slot aluminum extrusion framing components. Across numerous industries, Bosch aluminum extrusion profiles have become widespread and preferable to materials like stainless steel. In fact, an integrated system with a uniform. 30x30 Aluminum Extrusion - 6 Series, Base 30, Two Adjacent Closed Sides. 6 144 0. There are three main extrusion series we offer: Fractional extrusions consist of 10 Series and 15 Series. Leveling Feet. Slide the screw head into the other extrusion, line it up with the access hole, tighten, and enjoy! Pros: No joint obstructions, no tap drill required to thread, and high resistance to vibration. Livingston and Haven offers a full range of extruded aluminum products and services including: Bulk components, pre-cut kits, and fully assembled structures shipped ready to use. be used in a wide range of projects. Ships as soon as. Planning the upgrade In an aluminum extrusion press of this size, hydraulic components are under significant — and constant — wear and tear. Fine profile grid graduation for economical profile selection. Using an aluminum t-slot and one of our many fasteners or connectors, you can arrange your aluminum extrusions in numerous ways to create structures – from OSHA and ANSI-approved machine safety guarding, workstations,. au. Bosch Rexroth has the industrial hydraulics solutions engineered to serve the toughest challenges. →. . MISUMI USA has all of your Aluminum Extrusions needs covered, with over 3. Operating across four business sectors – Mobility Solutions, Industrial Technology, Consumer Goods, and Energy and Building Technology – Bosch is uniquely positioned to offer customers a multitude of value-add, cross-sector solutions across a diversity of industry applications. A-Line Automation is now the Carolinas distributor for Parco T-Slot Innovations! Parco offers a complete line of fractional t-slot aluminum extrusion framing components. 3 19 0. AccessoriesINSTALLATION GUIDE M o t i o n s i m u l a t o r Odyssee Hot-Line. Aluminum extruded bar for structural framing systems. The core success factors are innovative strength and pace of innovation. The press currently runs one 10-hour shift per day, with plans to move to two shifts in the near future. MISUMI USA has all of your Aluminum Extrusions needs covered, with over 3. Machifit Silver 2060 V-Slot Aluminum Extrusions 20x60mm Aluminum Profile Extrusion Frame For CNC Laser Engraving Machine 11 reviews COD. 5X45B quantity. 36Sold by the foot. 40x40 Aluminum Extrusion - Base 40, 90 Degree Curved, Hole Machining Alterations Available, FS8 Series. 6097 Phone | 513. Find bosch aluminum extrusion cad wholesale for use in construction, engineering works, and decorations. STEP / IGES. 80/20; Aluminum Extrusions and T-slot Fasteners; T-Slot Aluminum Accessories: Fasteners; T-Slotted Aluminum: Machine and Perimeter Guarding; T-Slot Workstations; T-Slot Lab and Medical Tables; Industrial Platforms, Stairs, and Crossovers; Industrial Sound Enclosures; 80/20. ISO 9001:2015 CERTIFIED. Structural Aluminum Extrusion, 45x90L Stick. →. The extrusions are 40x40mm and have 10 mm T-slots. 45x90 Aluminum Extrusion - 8-45 Series, Base 45, One Closed Side. 40x40 Aluminum Extrusion - 8 Series, Base 40, One Closed Side. Used for light-duty applications such as sound enclosures, machine guards, 3-D printer frames, picture frames, displays, pop-up workbenches, and much more. Kit of profiles and connections to get you started on Bosch aluminum extrusion designs. Torsion Index (W t) 17. com Mounts for Robot Teach Pendants. One versatile system, countless applications. See more ideas about aluminum extrusion, aluminum extrusion design, extrusion. Including sales and service partners, Bosch’s global manufacturing, engineering, and sales network covers nearly every country in the world. $17. Aluminum extrusion, Aluminum roll formed section. Buy Bosch Rexroth 90x180 Structural Aluminum Framing Profiles (3842553624) online today with confidence thanks to our real-time inventory availability information. 40x40 6063 t5 industrial extruded Heavy duty t-slot t slot aluminum extrusion profile for industry aluminium frame $2. Manufacturer: Bosch Rexroth. 93 USD. Join the GrabCAD Community today to gain access and download!Shop Product Catalog. I also included all the possible end treatments and suppressed them. 12-02-2010, 02:52 PM #6. Required Length (mm) Product Price: Please Select Desired Machining Options. Aluminum casting is when molten aluminum is poured into a mold and allowed to harden. Our t-slot aluminum extrusion framing meets or exceeds industry standard tolerances to. The store shows our most popular t-slotted aluminum extrusion sizes but many other sizes are available through us and Bosch Rexroth. The demands on modern, lean production are more than just focusing on individual modules. A-Line Automation stocks a high-quality t-slot aluminum framing system designed to be compatible with Bosch aluminum extrusion profiles. Bosch Rexroth offers decades of experience and unbeatable flexibility for the design of your assembly line. Rexroth Store. Strong and durable, Series 45 aluminum profiles are available in a variety of sizes, shapes, and weights to provide you with the right T-slot connectors for your project. Manufacturer Part Number: 3842557216. Choose from our selection of aluminum extrusion accessories, including T-slotted framing structural brackets, T-slotted framing fasteners, and more. Volume Discount is available. Because we use t-slotted aluminum extrusion, our workbenches are not only durable, but also aesthetically pleasing – and 100% compatible with 80/20, Bosch, Item, Faztek and others. Simply select your extrusion profile, load distribution, and applied forces and get. These Modular Aluminum Extrusions are light and strong, have a clear anodized finish and include t-slots along the length that allow you to easily connect adjacent extrusions or attach other items like panels, tool holders, monitor arms and more. Bosch Compatible Aluminum Extrusion Accessories; Automation Control; Bosch Compatible Aluminum Extrusion Cut Sticks; Bosch Compatible Aluminum Extrusion Full Sticks; Desiccant Filters; Electric Components & Controls; High Pressure Solutions; Hydraulic Components & Controls; Industrial Robots & Tooling;2-15. Fasteners, plates, nuts, brackets & connectors are also available. $123. Why is that? Well, aluminum possesses many traits that make it practical and aesthetically viable in a way other metals can’t compete with. For example, "80/20 T Slot Aluminum Extrusion 15 S 1530 x 97 N" are $90. 7281 Fax | 513. This profile lends itself to clean room applications, guards. The seamless integration of the component library and numerous supporting functions reduces design outlay, helps prevent errors and lowers the engineering costs. In addition, aluminum is an excellent thermal conductor, which makes it ideal for applications such as lighting fixtures and heat exchangers. 80. 60x60 Aluminum Extrusion - 6 Series, Base 30, Two Adjacent Closed Sides. CP in 30 minutes. PROFILE 20X40B. Easy planning with our Engineering Software MTpro MTpro is a software for the planning and design of assembly technology systems which supports you in selection, configuration, layouting and ordering of products from. We have approximately 73ft all together. Buy Bosch Rexroth 50x50L Structural Aluminum Framing Profile Bundles (3842529351) online today with confidence thanks to our real-time inventory availability information. © Bosch Rexroth Corporation 2014-2023, all rights reserved. Adding to its robust aluminum framing product portfolio metric series, Bosch Rexroth is expanding its offering in North America to include the Inch 10 and 15 series. Depolarization-backscatter lidar for stratospheric studies The main structure is formed by two boxes of standard aluminium extrusion Bosch profiles; one is the telescope box, the second is. You can interchange most of the Parco T-slot extrusions with 80/20 T-slots and Bosch T-Slots, which makes switching to Parco an easier process if you have existing structures. 100x200 Aluminum Extrusion - 8-45 Series, Base 50. About this item . However, many people are adopting t-slot aluminum extrusion for use in a wide variety of projects. 20 - $2. L1000mm 80X40 Aluminum extrusion profile. Mounting Block - Slot 10 - 411 010 For use with Bosch compatible extrusion. aluminum extrusion producer needed to develop a comprehensive and cost-effective plan to upgrade key hydraulics and controls on the company’s main extrusion press, to improve press performance and reduce or eliminate maintenance issues associated with hydraulic fluid leaks. 57 x 2. Call us at 1-248-584-5600. 9 Mil 1997 1-9. This is the website of the professional blue power tools from Bosch – for trade and industry professionals. 0. Add Bosch Rexroth to that list. Structural Aluminum Extrusions / Bosch Rexroth Strut Profile 30x30, Bundle of 20 Sticks, Length=6070mm, 8mm T-Slots; Bosch Rexroth Strut Profile 30x30, Bundle of 20 Sticks. A Bosch aluminum extrusion boom has been used as the rotating bar. AluFab carries a complete assortment of aluminum extrusion brackets, aluminum extrusion gussets, and aluminum extrusion plates. Fusion 360, STEP / IGES, Rendering, May 2nd, 2022. - 5 each - Attachments Included in this price!!Used, in great condition. Bosch Rexroth offers decades of experience both unbeatable flexibility for an design of your mount line. Solution: Bosch Rexroth worked with GEI toBosch Rexroth extrusion starter kit. Aluma 81106 aluminum truck bed on order standard features: extruded alum. They are lightweight, durable, and corrosion-resistant. Items in-stock ordered before 12:00 PM EST ship today!General Info About 6061 Aluminum Tube. These cookies are used to collect information about how you interact with our website and allow us to remember you. 96 cm 3. See the Bosch website for more. All you need to do is cut the t-slots to the desired length and bolt the extrusions together using fasteners and corner brackets or joining plates. (800) 817-0617 sales@parco-inc. If your project needs to support a heavy load and you have questions about which profiles to pick that would provide the best support, check out our. © Bosch Rexroth Corporation 2014-2023, all rights reserved. Home quot; 1515 aluminum extrusion v slotquot; 63 Results; Price - OK. These tanks were filled with tap water, providing at least. Bosch Rexroth offers decades of experience and unbeatable flexibility for the design of your assembly line. Made of 1000 series aluminum which is 99% pure, this aluminum offers superior formability, corrosion resistance, and electrical conductivity. Min Order: 500 kilograms. B-SERIES EXTRUSIONS. emeryville 6 feet 8020 15 Series, 1. Use our contact form. These are all ready to be run through the Structural Shape Author so they can be used with Frame Generator. These loads are the allowed maximum. Using an aluminum t-slot and one of our many fasteners or connectors, you can arrange your aluminum extrusions in numerous ways to create structures – from OSHA and ANSI-approved machine safety guarding, workstations, desk modules, climate control enclosures, material handling racks to laser. 99. The store shows our most popular t-slotted aluminum extrusion sizes but many other sizes are available through us and bosch rexroth. Come by and get what you need. Our B-series also has its own line of hardware, hinges, brackets, and accessories. 100% Compatibility with 80/20, Bosch, Faztek, and others (For BLACK EXTRUSIONS & PARTS, Click HERE). Download our B-series catalog and compare to Bosch, or check out what else our B-series line has to offer: TSLOT nuts. ©2009 Bosch Rexroth Corporation Bosch Rexroth Corporation Linear Motion and Assembly Technologies 816 E. With a streamlined process of proven products, Bosch exemplifies the. . We stock profiles from 20x20 to 100x200, so whatever your framing. $21. View Brochure. Check on Toolbarn. Rexroth Store. Bosch Rexroth offers decades of experience and unbeatable flexibility for the design of your assembly line. Bosch Rexroth Canada. Aluminum Structural Framing Bosch Rexrot buy on the official Bosch Rexrot catalog. A-Line Automation offers aluminum extrusion brackets for custom-frame fabrication. Kit of profiles and connections to get you started on Bosch aluminum extrusion designs. Aluminum extrusion, Aluminum roll formed section. Bosch aluminum extrusion profiles offer several advantages over other materials. 60x60 Aluminum Extrusion - 8-45 Series, Base 60. Imprint Data Protection Notice Legal Notice Terms and Conditions Quality and Environmental Certificates. comMounts for Robot Teach Pendants. L-Shaped Aluminum Assembly Plate, for 45 x 45mm Extrusions. From machine guards to robot arms and racing simulators to workstations, 80/20 is a product for individuals, industries and businesses alike. 646. Contact us via email. It provided a firm surface against which an additional layer of aluminum tanks was pushed, without disturbing the inner shielding configuration. Each model features one or more 8mm T-slot profile openings, and any side that does not have an opening has smooth siding. Genuine Bosch Rexroth. Explore our Assembly Technology Portfolio. Come by and get what you need. We are funded by CNBM Group, a Fortune 500 enterprise and the largest Bosch Aluminum Extrusion firm in. Planning the upgrade In an aluminum extrusion press of this size, hydraulic components are under significant — and constant — wear and tear. Is the same as Aluminum Extrusion HFS Series, except for the groove into which the mesh fence is inserted, and thus, can include the same accessories as for HFS Series. Ships. do NOT contact me with unsolicited services or offersWelcome to Bosch Blue. Aluminum extrusion is one of the easiest and most versatile materials to build with - using only a few simple hand tools, you can basically build anything! In our previous blog, 3 Easy Ways To Connect. TSLOTS is the ideal building material with its diverse line of exceptional quality of aluminum extrusion. 20-2020 - 20 millimeter x 20 millimeter T-Slotted Aluminum Extrusion . May 20th, 2020. We use a proven system of t-slot aluminum framing designed to be interchangeable with Bosch and Item. Advanced Motion & Controls offers Bosch Rexroth – world’s largest aluminum profile building system. pounds of aluminum extrusions for the Michigan-based manufacturer. Buy Bosch Rexroth 45x90 Structural Aluminum Framing Profile Bundles (3842553615) online today with confidence thanks to our real-time inventory availability information. The update is now available for all users and can be downloaded and installed directly from within the MTpro application. Profile length in profile packaging units ( ) The stated length of the profile packaging units relates to the guaranteed usable length. Volume Discount is available. Items in-stock ordered before 12:00 PM EST ship today!4-Post Internal Mount Dyna-Lift Systems. That's not all; we also have the highest quality T-slot aluminum framing guaranteed to be compatible with Bosch aluminum extrusion profiles. High-strength extruded aluminum. au. These are all ready to be run through the Structural Shape Author so they can be used with Frame Generator. Tag: 4040 ×. In stock and ready to ship. Operating across four business sectors – Mobility Solutions, Industrial Technology, Consumer Goods, and Energy and Building Technology – Bosch is uniquely positioned to offer customers a multitude of value-add, cross-sector solutions across a diversity of industry applications. L&H can help keep your Bosch Rexroth TS Series of Pallet Conveyors operating at maximum productivity by assisting with spare parts, system upgrades, and system…577,830 active members* 5,181 visitors online* Register for free LoginVente en ligne de profilés aluminium modulaires type Bosch, extrusions, barres, rails, accessoires, fixations, écrous - Professionnels & particuliers | Systeal - Systeal. The 30-3030 profile is compatible with all 30 series fasteners. 77 x 1. 5These extrusions are 100% compatible with the following manufacturers: 80/20 #45-4545-L, T-SLOTS #670030, Bosch-Rexroth #3 842 992 967. Mounting Block - Slot 10. Nowadays, there are so many products of bosch aluminum extrusion distributors in the market and you are wondering to choose a best one. For more than 87 years of manufacturing for companies such as 80/20® and Bosch® TSLOTS by Futura, a division of Bonnel Aluminum, became the only North American based extrusion provider to produce their own extruded products. TS 30-30 End Cap Black. Come by and get what you need. Slot widths range from 6mm to 10mm. A wide range of accessory components complements the aluminum profile system of Bosch Rexroth. Door Catches, Handles and Latches. Buy Bosch Rexroth 90x180L Structural Aluminum Framing Profiles (3842557236) online today with confidence thanks to our real-time inventory availability information. T Slot Components | Aluminum T Slot Profiles in SSize. •They are in the “20. 45 Series Smooth T-Slotted Aluminum Extrusion with Four Open T-Slots. 00. 2 cm 3. The best prices. Let us know if you would like our engineering service to help you with your more complicated aluminum framing system projects like work cells, machine enclosures or guards. Manifolds are the basic elements for ready for connection control systems of vertical stackings with 1 to 10 stations. Win A $1,000 Gift Card – Register Your Appliance. Order online from AluFab Inc, - high quality, configurable 80mm x 80mm T-Slotted Aluminum extrusion bar for. A-Line Automation’s Bosch aluminum extrusions work with your existing Bosch profiles. Rapid Design. Discover how to create custom solutions for your assembly needs with our versatile and reliable aluminum structural framing systems. Miles Graydon. Thanks ! Reply to Pogo. Manifolds. Bosch’s framing system consists of T-slot aluminum extruded profiles, connectors, components and accessories. With its more than 400 locations worldwide, the Bosch GroupBuy Bosch Rexroth 45x45 Structural Aluminum Framing Profile Bundles (3842553614) online today with confidence thanks to our real-time inventory availability information. Manufacturer: Bosch Rexroth. Looking for a cost-effective sturdy aluminium profile for your workplace, well look no further. Our aluminum. 36Sold by the foot. . 25" X 15. Due to increased freight costs, some of the products below may have increased pricing for lengths of 2500mm+. End Cap- Kanya Style. 57" x 2. Dewalt Sliding Compound miter saw, 12-inch. Our 45x45 aluminum extrusions are ideal for medium-weight applications and manage to remain lightweight and incredibly strong. Read More. Metric Aluminum Extrusion Profiles. Rexroth Store offers our optimum portfolio of products and an online experience you won’t find anywhere else. . Aluminum Extrusion Tall Safety Fence Units. Frame mullion for curtain wall and window cn heb hot aluminum extrusion thermal break aluminium extrusion $3. Bosch Aluminum Extrusion Profiles (302 products available) Custom aluminium frame for cabinet glass door extremely narrow border closet door frame wardrobe aluminium profile $2. See FAQs for this. Select options. 100x100 Aluminum Extrusion - 6 Series, Base 50. do NOT contact me with unsolicited services or offers Leading U.