eLINE Profiled Rail Systems
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The Drive & Control Company eLINE Profiled Rail Systems with Ball and Cam Roller Runner Blocks R310EN 2211 (2008.04)

Bosch Rexroth AG www.boschrexroth.com/brl Linear Motion and Assembly Technologies Ball Rail Systems Roller Rail Systems Linear Bushings and Shafts Ball Screw Drives Linear Motion Systems Basic Mechanical Elements Manual Production Systems Transfer Systems

R310EN 2211 (2008.04) eLINE Profiled Rail Systems Bosch Rexroth AG eLINE Profiled Rail Systems Product Overview 4 Technical Data, Design Notes, Mounting Instructions, Lubrication 6 General Technical Data and Calculations 6 General Mounting Instructions 7 Selection of Accuracy Classes 8 Combination of Accuracy 9 Selection of System Preload 9 Load-Dependent Size Selection 10 Lubrication 11 eLINE Ball Runner Blocks 12 FNS R2031 flanged, normal, standard height 12 SNS R2032 slimline, normal, standard height 14 FNN R2033 flanged, normal, low profile 16 SNN R2034 slimline, normal, low profile 18...

Bosch Rexroth AG eLINE Profiled Rail Systems R310EN 2211 (2008.04) Product Overview Special features of the new eLINE Profiled Rail Systems: Profiled rail systems have firmly established themselves as standard linear motion solutions. They were developed for precision applications calling for highly accurate guidance and high rigidity, e.g. in machine tools. In the meantime, a great variety of other applications for rail systems have emerged where high rigidity and accuracy are frequently not the most important considerations. Rexroth’s eLINE range of profiled rail systems was developed for...

R310EN 2211 (2008.04) eLINE Profiled Rail Systems Bosch Rexroth AG Ball Runner Blocks, flanged version Standard height Low profile (size 25) – – Lube unit with sealing function for eLINE ball and cam roller runner blocks (accessories) Cam Roller Runner Blocks, short Cam Roller Runner Blocks, standard Ball Runner Blocks, slimline version Standard height Low profile (size 25) – – Manual clamping unit

Bosch Rexroth AG q = 0 - 60 °C (1) (2) C F L 2 · s · nS · 60 L = ( )3 · 105 Lh = eLINE Profiled Rail Systems R310EN 2211 (2008.04) General Technical Data and Calculations Travel speed Acceleration All eLINE runner blocks are delivered with ready-mounted seal units. Temperature resistance Sealing Technical Data, Design Notes, Mounting Instructions, Lubrication Definition and calculation of the nominal life The radial loading of constant magnitude and direction which a linear rolling bearing can theoretically endure for a nominal life of 100 km distance traveled (per ISO 14728 Part 1)....

Bosch Rexroth AG S1 = a · Y S2 = b · X R310EN 2211 (2008.04) eLINE Profiled Rail Systems General Mounting Instructions Parallelism of the installed rails measured at the guide rails and at the runner blocks The parallelism offset P1 causes a slight increase in preload on one side of the assembly. As long as the values specified in the table are met, the effect of parallelism offsets on the service life can generally be neglected. eLINE profiled rail systems allow substantially higher installation tolerances compared to steel rail systems. c Vertical offset Provided the vertical offset is...

Bosch Rexroth AG H P1 P1 P1 A3 eLINE Profiled Rail Systems R310EN 2211 (2008.04) General Technical Data and Calculations Technical Data, Design Notes, Mounting Instructions, Lubrication Accuracy classes and their tolerances eLINE Ball Rail Systems are available in two different accuracy classes, eLINE Cam Roller Guide Systems in accuracy class E only. Built-in interchangeability through precision machining Rexroth manufactures its guide rails and runner blocks with such high precision, especially in the running track zone, that each individual component element can be replaced by another at...

R310EN 2211 (2008.04) eLINE Profiled Rail Systems Bosch Rexroth AG Combination of Accuracy Classes Runner block Rails N E (ìm) (ìm) N Tolerance dimension H +/– 100 +/– 110 Tolerance dimension A3 +/– 40 +/– 60 Max. diff. in dimens. H and A3 on one rail 30 30 E Tolerance dimension H +/– 115 +/– 120 Tolerance dimension A3 +/– 50 +/– 70 Max. diff. in dimens. H and A3 on one rail 60 60 Recommendations for combining accuracy classes Recommended for short strokes and close spacing of runner blocks: Runner blocks in higher accuracy class than guide rail. Recommended for long strokes and larger...

10 Bosch Rexroth AG MX MY MZ FZ FY Fcomb = kf · ( FZ + FY + C · MX + C · MY + C · MZ ) Mt ML ML eLINE Profiled Rail Systems R310EN 2211 (2008.04) Fcomb = combined equivalent load (N) FY, FZ = Dynamic loads (N) MX = Moment about the X-axis 1) (Nm) MY = Moment about the Y-axis 2) (Nm) MZ = Moment about the Z-axis 2) (Nm) Mt = dynamic torsional moment load capacity (Nm) For values, see runner blocks ML = dynamic longitudinal moment load capacity (Nm) For values, see runner blocks kf = Operating factor For values, see table Calculation of load on bearing for a runner block The moment MX will...

Bosch Rexroth AG 11 100.000 10.000 1.000 6.400 s (km) Fcomb/C 100 0,00 0,05 0,10 0,15 0,20 0,25 0,30 0,35 0,40 30.000 A B R310EN 2211 (2008.04) eLINE Profiled Rail Systems Size Ball runner blocks Cam roller runner blocks F0.15C (N) R2041 F0.15C (N) 15 750 140 20 1700 390 25 2500 400 Take account of the general service life of lubricants! c The following conditions apply: Initial greasing with Dynalub 510 With Seal Unit (DE) Maximum speed: vmax = 2 m/s No exposure to metalworking fluids Ambient temperature: T = 20 – 30 °C – – – – – s = distance traveled (km) C = dynamic load capacity (N) F =...

12 Bosch Rexroth AG eLINE Profiled Rail Systems R310EN 2211 (2008.04) Ball runner block FNS R2031 Flanged, normal, standard height Runner block body made from wrought aluminum alloy Hardened steel running tracks Steel balls per DIN 5401 With Seal Unit (DE) Initial greasing with Dynalub 510 Lubrication concept – – – – – – eLINE Ball Runner Blocks Size Accuracy class Part numbers C0 C1 15 N R2031 194 10 R2031 114 10 E R2031 195 10 – 20 N R2031 894 10 R2031 814 10 E R2031 895 10 – 25 N R2031 294 10 R2031 214 10 E R2031 295 10 –