LBC, D-series - SKF

1 LBC, D-series Next generation of SKF linear ball bearings and units Increased level of performance Improved lifetime Improved reliability and robustness Easier to mount 2. Content SKF the knowledge engineering company .. 4. LBC, D-series next generation of linear ball bearings and units .. 6. Applications .. 7. Features and benefits .. 8. Technical and calculation data.. 10. Permissible operating conditions .. 10. Friction .. 10. Calculation bases and factors of influence .. 10. Operating conditions.. 12. Impact of stroke length, factor fs .. 13. Number of loaded bearings per shaft, factor fi .. 13. Influence of load direction, factors fl and fl0 .. 13. Mounting and maintenance .. 13. Product overview .. 14. Product tables .. 15. Linear ball bearings ISO series 3 .. 15. Linear ball bearings LBCR .. D .. 15. Linear ball bearings LBCD .. D .. 15. Axial and rotational fixation LBC, D-series .. 16. Grease fittings for LBC, D-series .

2 17. Linear bearing units, ISO series 3 .. 18. Linear bearing units LUCD .. D .. 19. Linear bearing units LUCE .. D .. 20. Linear bearing units LUND .. D .. 21. Linear bearing units LUNE .. D .. 22. Flanged linear bearing units LVCR .. D .. 23. Tandem linear bearing units LTCD .. D .. 24. Quadro linear bearing units LQCD .. D .. 25. Specification sheet Linear Ball bearing .. 27. 3. SKF the knowledge engineering company From one simple but inspired solution to a misalignment problem in a textile mill in Sweden, and fifteen employees in 1907, SKF has grown to become a global industrial knowledge leader. Over the years we have built on our exper- Meeting the toughest challenges Working for a sustainable future tise in bearings, extending it to seals, me- Our network of knowledge and experience Since 2005, SKF has worked to reduce the chatronics, services and lubrication systems. along with our understanding of how our negative environmental impact from our Our knowledge network includes 46 000 core technologies can be combined helps own operations and those of our suppliers.

3 Employees, 15 000 distributor partners, us create innovative solutions that meet the Our continuing technology development offices in more than 130 countries, and a toughest of challenges. We work closely with introduced the SKF BeyondZero portfolio growing number of SKF Solution Factory our customers throughout the asset life of products and services which improve sites around the world. cycle, helping them to profitably and efficiency and reduce energy losses, as well responsibly grow their businesses. as enable new technologies harnessing Research and development wind, solar and ocean power. This combined We have hands-on experience in over forty approach helps reduce the environmental industries, based on our employees' know- impact both in our own operations and in ledge of real life conditions. In addition our our customers'. world-leading experts and university part- ners who pioneer advanced theoretical research and development in areas includ- ing tribology, condition monitoring, asset management and bearing life theory.

4 Our ongoing commitment to research and development helps us keep our customers at the forefront of their industries. Working with SKF IT and logistics systems and application experts, SKF. SKF Solution Factory makes SKF knowledge and manufacturing expertise Authorized Distributors deliver a valuable mix of product and application available locally, to provide unique solutions and services to our customers. knowledge to customers worldwide. Design and develo p Man ion ufa at ctu ific re an Spec d te st SKF Life Cycle Our knowledge Management ission your success Ma int ai m SKF Life Cycle Management is how we combine our technology n an om platforms and advanced services, and apply them at each stage d rep dc air an of the asset life cycle, to help our customers to be more stall successful, sustainable and profitable. Opera In te and monitor Working closely with you Bearings SKF is the world leader in the design, development Our objective is to help our customers and manufacture of high performance rolling improve productivity, minimize mainten- bearings, plain bearings, bearing units and housings.

5 Ance, achieve higher energy and resource efficiency, and optimize designs for long service life and reliability. Machinery maintenance Condition monitoring technologies and main- Innovative solutions tenance services from SKF can help minimize Whether the application is linear or rotary unplanned downtime, improve operational efficiency and reduce maintenance costs. or a combination of the two, SKF engineers can work with you at each stage of the asset life cycle to improve machine performance by looking at the entire application. This Sealing solutions approach doesn't just focus on individual SKF offers standard seals and custom engineered components like bearings or seals. It looks sealing solutions to increase uptime, improve at the whole application to see how each machine reliability, reduce friction and power losses, and extend lubricant life. component interacts with the next. Design optimization and verification SKF can work with you to optimize current Mechatronics or new designs with proprietary 3-D model- SKF fly-by-wire systems for aircraft and drive-by- ing software that can also be used as a vir- wire systems for off-road, agricultural and forklift tual test rig to confirm the integrity of the applications replace heavy, grease or oil consuming mechanical and hydraulic systems.

6 Design. Lubrication solutions From specialized lubricants to state-of-the-art lubrication systems and lubrication management services, lubrication solutions from SKF can help to reduce lubrication related downtime and lubricant consumption. Actuation and motion control With a wide assortment of products from actu- ators and ball screws to profile rail guides SKF. can work with you to solve your most pressing linear system challenges. LBC, D-series Next generation of SKF linear ball bearings and units LBC, D-series is the latest range of SKF linear If required, a self-aligning version of the ball bearings, improving on the current SKF LBC, D-series is available. This LBCD .. D. range of linear ball bearings already recog- bearing accommodates tilting of the whole nized as best in class throughout industry. bearing through an angle up to 30 minutes LBC, D-series linear ball bearings consist of arc. The tilting feature compensates for of a cage and raceway segments to support misalignment which may be caused by sig- ball sets and seals.

7 The raceways with an nificant bending of an unsupported shaft or exceptionally long track and a precision ma- by misalignment due to manufacturing and chined profile accommodate heavy loads. fitting tolerances of the adjacent construc- LBC, D-series linear ball bearings are avail- tion. The cage and seals have been opti- able for shaft diameters 12 to 40 mm, with mized to accommodate the self-aligning the choice of double lip seals. Bearings with capability so that the bearing and especially stainless steel balls and raceways are avail- the shields or seals remain concentric with able for contaminated environments. They the shaft. can be used in combination with SKF stain- less steel shafts for a corrosion resistant Pos. Component Material guidance system. 1 Cage PA. 2 Recirculation cap PA. 3 Double lip seal PU. 5 4 Balls Bearing steel 5 Raceways steel 6 Lubrication port . 4. 6. 2. 1. 3. 6. Applications Automation machinery Automation processes are often based on Customer benefits linear ball bearing slides.

8 These enable the High running accuracy insertion, exact positioning and removal of Can be used in harsh / polluted work pieces. environment High speed Efficient sealing provides long service life Pick and place machines Machines performing pick and place tasks, Customer benefits robots in laboratories or automated handling High running accuracy machines, can be equipped with linear ball Can be used in clean environment bearings. High speed Filling machines The fillers move up and down to fill bottles Customer benefits that slide down the production line. The ver- Special grease enables usage with food tical movement is supported by linear ball (optional). bearings. Pre-lubrication and double lip seals provide long lifetime Long service time Platform screen doors The door systems contain linear ball bear- Customer benefits ings, which guide the parallel movement of Low maintenance and long service the door to the side of the vehicle.

9 Intervals Smooth running performance enables easy door movement Bearings are sealed from contamination by double-lip seals It is strongly recommended that the application of bearings proposed by SKF are tested in operational conditions as close as possible to real ones. Please contact SKF in case of any further questions. 7. F eatures and benefits Improved load ratings and lifetime Depending on the specific bearing size, the LBC, D-series linear ball bearings steel Raceway can deliver up to 15% higher dynamic load carrying capacity and up to 50% ball longer bearing lifetime than previous LBC designs. Optimized ball tracks and larger rolling elements enable the performance increases and consequently, Recommended main greater reliability and productivity for the application. Higher load carrying load direction capacity also gives product designers and manufacturers the flexibility to downsize designs or to increase loading.

10 Load zone Returning zone Cage Full ISO interchangeability LBC, D-series linear ball bearings are manufactured according to ISO 10285. dimensions and tolerances, making them fully interchangeable with previous LBC or ISO Series 3 bearings. For product designers and manufacturers, the new LBC, D-series bearings offer a flexible, drop-in replacement option for A. existing equipment designs. L. A. L. H. Fw Fw Self-aligning capability The LBC, D-series linear ball bearings include the self-aligning LBCD .. D. variant. Self-aligning LBCD .. D linear ball bearings can accommodate tilting of the whole bearing through an angle of 30 minutes of arc. This tilting fea- ture compensates for misalignments caused by fitting or manufacturing tol- erances of the adjacent construction, or by significant bending of an unsup- ported shaft. The LBCD .. D bearing cage, seals and shields have been optimized to accommodate the self-aligning feature so that the bearing, shields and seals remain concentric with the shaft.