Table of Contents 1 Product Overview............................................ L 4 2 Applications 2.1 Linear Bearings for a Universal Tool Grinding Machine Table......... L 12 2.2 Grinding Table Mounting on an Internal Grinder................... L 13 2.3 Non pre-loaded Anti-friction Guideway for Heavy Duty Flat Grinder.... L 14 2.4 Closed V-Guides for Flat Grinding Machine...................... L 15 2.5 Cages with assisted movement............................... L 16 2.6 V-Guide for Heavy Duty Tool Grinding Machines.................. L 18 2.7 Delivery Unit in Nuclear Industry............................... L 19 3 Linear Bearings Type R 3.1 Linear Bearings Type R..................................... L 21 3.2 Material................................................. L 21 3.3 Special version........................................... L 21 3.4 Dimension Table Type R.................................... L 22 3.5 Accessories.............................................. L 30 4 NEW: Linear Bearings Type RN 4.1 Linear Bearings Type RN.................................... L 33 4.2 Material................................................. L 33 4.3 Special version........................................... L 33 4.4 Dimension Table Type RN................................... L 34 4.5 Accessories.............................................. L 38 5 Linear Bearings Type RNG 5.1 Linear Bearings Type RNG.................................. L 39 5.2 Material................................................. L 39 5.3 Special version........................................... L 39 5.4 Dimension Table Type RNG.................................. L 40 5.5 Accessories.............................................. L 44 5.6 Fitting Example........................................... L 46 6 Linear Bearings Type RD 6.1 Linear Bearings Type RD.................................... L 47 6.2 Material................................................. L 47 6.3 Special version........................................... L 47 6.4 Dimension Table Type RD................................... L 48 6.5 Fitting Example........................................... L 50 7 Linear Bearings Type N and O 7.1 Linear Bearings Type N and O................................ L 51 7.2 Material................................................. L 51 7.3 Special version........................................... L 51 7.4 Dimension Table Type N/O.................................. L 52 7.5 Accessories.............................................. L 58 7.6 Fitting Example........................................... L 60 8 Prisma and Support Guideway System 8.1 Prisma and Support....................................... L 61 8.2 Material................................................. L 61 8.3 Special version........................................... L 61 8.4 Dimension Table PRISMA................................... L 62 8.5 Dimension Table SUPPORT................................. L 64 9 Recirculating Units Type SK and SKD 9.1 Recirculating Type SK and SKD.............................. L 67 9.2 Material................................................. L 67 9.3 Dimension Table SK and SKD................................ L 68 9.4 Fitting dimensions......................................... L 70 9.5 Permissible moments...................................... L 70 10 Recirculating Units Type SR 10.1 Recirculating Units Type SR................................. L 71 10.2 Material................................................. L 71 10.3 Dimension Table Type SR................................... L 72 10.4 Fitting dimensions......................................... L 74 10.5 Permissible moments...................................... L 74 11 Recirculating Units Type ECO-ROLL 11.1 Recirculating Units Type ECO-ROLL........................... L 75 11.2 Material................................................ L 75 11.3 Dimension Table ECO-ROLL................................. L 76 11.4 Fitting Example........................................... L 78 11.5 Accessories.............................................. L 78 12 Recirculating Units Type NRT 12.1 Recirculating Units Type NRT and Preload Wedge Type NRV........ L 79 12.2 Material................................................ L 79 12.3 Standard version.......................................... L 79 12.4 Dimension Table Type NRT and NRV.......................... L 80 12.5 Special version........................................... L 82 12.6 Preload Adjustment........................................ L 82 13 Technical Information 13.1 Tolerances............................................... L 83 13.2 Materials................................................ L 86 13.3 Permissible Operating Temperatures........................... L 86 13.4 Lubrication.............................................. L 87 13.5 Permissible Velocities and Accelerations........................ L 87 13.6 Sealing and Guarding...................................... L 88 13.7 Friction, Running Accuracy and Smoothness..................... L 88
14 Design and Fitting Guidelines 14.1 Types of Fitting.......................................... L 89 14.2 Attaching Linear Bearings and Recirculating Units................ L 93 14.3 Preloading Linear Bearings................................. L 95 14.4 Design of Base Unit....................................... L 99 14.5 Design of Seals and Guards................................. L 103 14.6 Assembly............................................... L 106 14.7 Layout of SCHNEEBERGER Linear Bearings and Recirculating Units.................................... L 108 15 Dimensioning 15.1 Load Carrying Capacity and Operational Life.................... L 113 15.2 Elastic Deformation and Rigidity.............................. L 116 15.3 The Essentials Summarized................................. L 120 16 Calculation Examples 16.1 Load carrying capacity and operational life...................... L 123 17 Ordering Information........................................ L 136
11 Recirculating Units Type ECO-ROLL 11.1 Recirculating Units Type ECO-ROLL -R -RE 11.2 Material ECO-ROLL recirculating units, equipped with rollers, consist of a wear-resistant plastic housing with a built-in hardened and ground track. All rollers are fitted in plastic inserts. This simple design permits a comparably high traversing speed. L 75
11.3 Dimension Table ECO-ROLL ECO-ROLL-R ECO-ROLL-RE Weight Order No. in gm A B D w K t L L 1 ECO-ROLL-3R 14 7 16 3 33 60 ECO-ROLL-3RE 14 7 16 3 33 70 64 ECO-ROLL-6R 38 10 22 6 52 80 ECO-ROLL-6RE 40 10 22 6 52 90 83 ECO-ROLL-9R 126 15 33 9 78 120 ECO-ROLL-9RE 133 15 33 9 78 135 125 ECO-ROLL-12R 295 20 44 12 104 160 L w N d f f 1 g g 1 x C in N 2.8 4 2.5 5.5 3.5 4500 2.8 10 4 2.5 3 5.5 5 3.5 4500 4 5.2 3 7.8 5 12000 4 15 5.2 3 3.8 7.8 6.7 5 12000 5.6 8.2 5 11.8 7.5 27000 5.6 23 8.2 5 5 11.8 10.5 7.5 27000 7.2 10.2 6 15.8 10 46000 Ordering example: 10 Recirculating units ECO-ROLL-3RE L 76 L 77
11.4 Fitting Example Preloaded anti-friction guideway with ECO- ROLL and special customer specified linear bearings 11.5 Accessories Adjusting Plates Type ECO-PL The ground steel adjusting plates are intended to adjust the clearance when fitting the recirculating unit or, are used as a base plate when they are fitted to low strength materials. The attaching screw (DIN 84A) is supplied. Attaching screw Order No. B J L x DIN 84A DIN 6912 ECO-PL 3 15.8 3.7 59.8 3.5 M 2 8 ECO-PL 6 21.8 4.7 79.8 5 M 2.5 12 ECO-PL 9 32.8 5.6 119.8 7.5 M 4 16 M 4 16 ECO-PL 12 43.8 7.6 159.8 10 M 5 20 M 5 20 Ordering example: 10 Adjusting plates ECO-PL 3 L 78