Guide units FEN/FENG for ISO cylinders

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2 Key features At a glance The guide units FEN and FENG protect ISO cylinders against torsion when these are subjected to high torque loads. They offer high precision guidance for workpiece handling and other handling applications. Two guide variants are available: Plain-bearing guide (GF) Recirculating ball bearing guide (KF) Drive/guide unit combination options Drive/guide unit DSBC DSBG DNC DSNU FENG FEN Page/Internet dsbc dsbg dnc dsnu Position sensing With ISO cylinder DNC: When installed, a mounting kit is required to sense the front end position. The rear end position can be sensed directly via the sensor slot. With ISO cylinder DSNU: With these ISO cylinders, a mounting kit is absolutely necessary for sensing the end positions. Mounting kits Drive Piston diameter Part No. Type DSNU- -A SMBR SMBR SMBR SMBR SMBR SMBR-8-25 DNC- -A 32, SMB-8-FENG-32/40 50, SMB-8-FENG-50/63 80, SMB-8-FENG-80/100 2 Internet: Subject to change 2017/10

3 Type codes FENG GF Type FEN Guide unit to ISO 6432 FENG Guide unit to ISO Piston diameter [mm] Stroke [mm] Guidance GF KF Plain-bearing guide Recirculating ball bearing guide 2017/10 Subject to change Internet: 3

4 FEN to ISO N- Diameter 8 25 mm -W- -T- Stroke length mm FENG to ISO N- Diameter mm -T- Stroke length mm General technical data Type FEN- FENG- Piston diameter 8, 10 12, Stroke [mm] Design Guide Guidance FEN/FENG- -GF Plain-bearing guide FEN/FENG- -KF Recirculating ball bearing guide Displacement force FEN/FENG- -GF [N] FEN/FENG- -KF [N] Type of mounting Via female thread Mounting position Any Ambient temperature [ C] C Weight [g] (for calculation example page 8) Type FEN- FENG- Piston diameter 8, 10 12, Plain-bearing guide (GF) Basic weight with 0 mm stroke Additional weight per 10 mm stroke Moving mass with 0 mm stroke Additional mass per 10 mm stroke Recirculating ball bearing guide (KF) Basic weight with 0 mm stroke Additional weight per 10 mm stroke Moving mass with 0 mm stroke Additional mass per 10 mm stroke Internet: Subject to change 2017/10

5 Centre of gravity of the moving mass [mm] (for calculation example page 8) Type FEN- FENG- Piston diameter 8, 10 12, With 0 mm stroke Supplement per 10 mm stroke Materials Sectional view Recirculating ball bearing guide Plain-bearing guide Guide unit FEN/FENG- -GF FEN/FENG- -KF 1 Yoke plate Piston diameter Aluminium Aluminium Piston diameter 80, 100 Steel Steel 2 Coupling Steel Steel 3 Guide Aluminium Aluminium 4 Bearing Sintered bronze Steel 5 Guide rods Steel Steel Note on materials Free of copper and PTFE RoHS compliant 2017/10 Subject to change Internet: 5

6 Characteristic load value for FEN- -KF/FENG- -KF The indicated forces and torques refer to the guide centre. X If the guide unit is subjected to two or more of the indicated forces and torques simultaneously, the following equation must be satisfied in addition to the indicated maximum loads. Calculating the load comparison factor: f v F y F y,max F z F z,max M x M x,max M y M y,max M z M z,max 1 Distance X (for calculation example page 8) Type FEN- -KF FENG- -KF Piston diameter 8, 10 12, 16 20, Dimension X Max. permissible forces and torques Type FEN- -KF FENG- -KF Piston diameter 8, 10 12, 16 20, Static Fy max. /Fz max Mx max My max. /Mz max Dynamic (for a service life of 5000 km) Fy max. /Fz max Mx max My max. /Mz max Internet: Subject to change 2017/10

7 Calculating the service life The service life of the guide depends on the load. To provide a rough indication of the service life of the guide, the graph below plots the load comparison factor f v against the service life ratio q. These values are only theoretical. You must consult your local Festo contact for load comparison factors f v greater than 1.5. Load comparison factor f v as a function of service life ratio q Example: The effect on the service life, deviating from the specified reference service life, can be determined by means of the service life ratio q: Given: Reference service life = 5000 km Required service life = 3000 km q 3000km km The graph gives a load comparison factor f v of 1.2. This means that the permissible resultant load can be utilised up to 120%. -H- Note f v 1.5 are only theoretical comparison values. PositioningDrives engineering software /10 Subject to change Internet: 7

8 Calculation example L load L b L b = Centre of gravity of the moving mass of the guide unit L load = Centre of gravity of the payload L b_total = Centre of gravity of the total moving mass L b_total Length measurements should be provided with plus/minus signs as shown in the figure: L b_total 0 = Centre of gravity of the moving mass is on the payload side L b_total 0 = Centre of gravity of the moving mass is on the guide side Load side Guide side Given: Guide unit: FENG KF Stroke length: H = 200 mm Centre of gravity of payload L load = 15 mm Payload: m load = 5 kg Acceleration: a x = a y = 2 m/s 2, a z = 0 m/s 2 To be calculated: Loads Fy dyn /Fz dyn and Mx dyn /My dyn /Mz dyn Verification of operation with combined load Expected service life Solution: Moving load: m b_total m b m load (m b m 0b H m Hb ) m b m 0b = Moving mass of the guide unit = Moving mass with 0 mm stroke m Hb = Additional mass per 10 mm stroke From table page 4 m 0b = kg m Hb = kg/10 mm H = Stroke length m b = kg mm x kg/10 mm = kg m b_total = kg + 5 kg = kg Centre of gravity of the moving mass L b_total L load m load L b m b m b_total (L b L 0b H L Hb ) From table page 5 L 0b = 43 mm L Hb = 4.5 mm/10 mm L b m b L load m load L 0b L Hb = Centre of gravity of the moving mass of the guide unit = Moving mass of the guide unit = Centre of gravity of the payload = Payload = Centre of gravity of the moving mass with 0 mm stroke = Additional centre of gravity of the moving mass per 10 mm stroke L b = 43 mm mm x 4.5 mm/10 mm = 133 mm L b_total ( 15mm) 5kg ( 133mm) 0.843kg 6mm 5.843kg Length measurements should be provided with plus/minus signs as shown in the figure: L b_total 0 = Centre of gravity of the moving mass is on the payload side L b_total 0 = Centre of gravity of the moving mass is on the guide side 8 Internet: Subject to change 2017/10

9 Calculation example Loads Fy dyn /Fz dyn and Mx dyn /My dyn /Mz dyn Fy dyn = m b_total x a y = kg x 2 m/s 2 = 12 N Fz dyn = m b_total x (g + a z ) = kg x (9.81 m/s m/s 2 ) = 57 N From table page 6 Dimension X = 83 mm My dyn =Fz dyn x (dimension X + stroke + L b_total ) = 57 N x (83 mm mm + ( 6 mm)) = 16 Nm Mz dyn = Fy dyn x (dimension X + stroke + L b_total ) = 12 N x (83 mm mm + ( 6 mm)) = 3 Nm Verification of operation with combined load Max values from table page 6 Fy max = 750 N Fz max = 750 N Mx max = 28 Nm My max = 34 Nm Mz max = 34 Nm f v F y F y,max F z F z,max M x M x,max M y M y,max M z M z,max 1 f v 12N 57N 0Nm 16Nm 3Nm N 750N 28Nm 34Nm 34Nm Expected service life L calc L ref f v km km 2017/10 Subject to change Internet: 9

10 Max. payload F and torque M as a function of cantilever load A M A = Cantilever load X = Distance to centre of gravity of the payload S = Centre of gravity of the payload M = Torque Explanation of how to read graphs in the case of a combined load M2 M1 Determine cantilever load (75 mm) Enter proportion that is payload (30 N) Enter distance from curve Permitted torque is the difference between M2 and M1 FEN- with plain-bearing guide Piston diameter 8/10 Piston diameter 12/16 Piston diameter 20/25 10 Internet: Subject to change 2017/10

11 Max. payload F and torque M as a function of cantilever load A M A = Cantilever load X = Distance to centre of gravity of the payload S = Centre of gravity of the payload M = Torque FENG- with plain-bearing guide Piston diameter 32 Piston diameter 40 Piston diameter 50 Piston diameter 63 Piston diameter 80 Piston diameter /10 Subject to change Internet: 11

12 Max. payload F and torque M as a function of cantilever load A M A = Cantilever load X = Distance to centre of gravity of the payload S = Centre of gravity of the payload M = Torque FEN- with recirculating ball bearing guide Piston diameter 8/10 Piston diameter 12/16 Running performance of 1500 km Running performance of 3000 km Running performance of 1500 km Running performance of 3000 km Piston diameter 20/25 Running performance of 5000 km Running performance of km 12 Internet: Subject to change 2017/10

13 Max. payload F and torque M as a function of cantilever load A M A = Cantilever load X = Distance to centre of gravity of the payload S = Centre of gravity of the payload M = Torque FENG- with recirculating ball bearing guide Piston diameter 32 Piston diameter 40 Piston diameter 50 Piston diameter 63 Piston diameter 80 Piston diameter 100 Running performance of 5000 km Running performance of km 2017/10 Subject to change Internet: 13

14 Deflection f tare (due to tare weight) as a function of cantilever load A O f tare f tare O FEN- FENG- FEN-8/10- -GF/KF FEN-12/16- -GF/KF FEN-20/25- -GF/KF FENG-32- -GF/KF FENG-40- -GF/KF FENG-50/63- -GF/KF FENG-80/100- -GF/KF Deflection f standard (due to lateral force) as a function of cantilever load A F z F y f lateral f lateral The maximum permissible lateral force must not be exceeded. f lateral F lateral F standard f standard F standard = 10 N A = Cantilever load of guide rod f lateral = Deflection due to lateral force F lateral = Lateral force F standard = Standardised lateral force f standard = Deflection due to standardised lateral force (value from graph) FEN- FENG- FEN-8/10- -GF/KF FEN-12/16- -GF/KF FEN-20/25- -GF/KF FENG-32- -GF/KF FENG-40- -GF/KF FENG-50/63- -GF/KF FENG-80/100- -GF/KF 14 Internet: Subject to change 2017/10

15 Inclination á (due to torque) as a function of cantilever load A M á M M standard standard M standard = 2 Nm (valid for á 10 ) A = Cantilever load of guide rod á = Inclination due to torque M = Torque M standard = Standardised torque á standard = Deflection due to standardised torque FEN- FENG- FEN-8/10- -GF/KF FEN-12/16- -GF/KF FEN-20/25- -GF/KF FENG-32- -GF/KF FENG-40- -GF/KF FENG-50- -GF/KF FENG-63- -GF/KF FENG-80- -GF/KF FENG GF/KF 2017/10 Subject to change Internet: 15

16 Dimensions FEN-8, 10 Download CAD data 1 Cylinders DSN/DSNU 2 Compensating coupling for radial and axial alignment + = plus stroke length B1 B2 B3 B4 B5 B6 B7 B8 D1 D2 D3 D4 D5 D6 1) D8 H1 H2 [mm] 0.3 ± M M H3 H4 H5 KK L1 L2 L4 L5 L7 L8 L9 L10 L11 L12 T1 T2 ß1 ß2 [mm] M ) FEN- -GF: Tolerance class f8 FEN- -KF: Tolerance class h6 16 Internet: Subject to change 2017/10

17 Dimensions FEN-12, 16 Download CAD data 1 Cylinders DSN/DSNU 2 Compensating coupling for radial and axial alignment + = plus stroke length B1 B2 B3 B4 B5 B6 D1 D2 D3 D4 D5 D6 1) D8 H1 H2 H3 [mm] 0.3 ±0.15 ± ± M M H4 H5 KK L1 L2 L4 L5 L7 L8 L9 L10 L11 T1 T2 ß1 ß2 [mm] +5 ± M ) FEN- -GF: Tolerance class f8 FEN- -KF: Tolerance class h6 2017/10 Subject to change Internet: 17

18 Dimensions FEN-20, 25 Download CAD data 1 Cylinders DSN/DSNU 2 Compensating coupling for radial and axial alignment + = plus stroke length [mm] B1 0.3 B2 B3 ±0.2 B4 B5 B6 D1 D2 D3 D4 D5 D6 1) M M D7 D8 H1 0.4 H2 H3 ±0.2 H4 H5 KK L1 L2 L4 L5 L6 L7 L8 L9 L10 L11 T1 T2 T3 ß1 ß2 [mm] M M10x ± ) FEN- -GF: Tolerance class f8 FEN- -KF: Tolerance class h6 18 Internet: Subject to change 2017/10

19 Dimensions FENG Download CAD data 1 Cylinders DNC/DSBC/DSBG 2 Compensating coupling for radial and axial alignment 3 Users can drill additional mounting holes along these axes as required + = plus stroke length B1 B2 B3 B4 D1 D2 D3 [mm] 0.3 ±0.2 ±0.2 ±0.2 ± ± M M10x ± M M12x ± M M16x ± M M16x ± M M20x ± M M20x1.5 D4 D6 1) H1 H2 H3 H4 H5 KK L1 L2 L3 L4 L5 L6 L7 L8 L9 L11 L12 L13 T1 T2 ß1 [mm] ±0.2 ±0.2 ±0.2 Max. 1) FENG- -GF: Tolerance class f8 FENG- -KF: Tolerance class h6 2017/10 Subject to change Internet: 19

20 Ordering data FEN- for variable strokes for ISO cylinders DSNU Piston diameter Stroke With plain-bearing guide With recirculating ball bearing guide [mm] [mm] Part No. Type Part No. Type 8, FEN-8/10- -GF FEN-8/10- -KF 12, FEN-12/16- -GF FEN-12/16- -KF FEN-20- -GF FEN-20- -KF FEN-25- -GF FEN-25- -KF Ordering data FENG- for variable strokes for ISO cylinders DNC/DSBC/DSBG Piston diameter Stroke With plain-bearing guide With recirculating ball bearing guide [mm] [mm] Part No. Type Part No. Type FENG-32- -GF FENG-32- -KF FENG-40- -GF FENG-40- -KF FENG-50- -GF FENG-50- -KF FENG-63- -GF FENG-63- -KF FENG-80- -GF FENG-80- -KF FENG GF FENG KF Ordering data FENG- -KF with recirculating ball bearing guide for fixed strokes for ISO cylinders DNC/DSBC/DSBG Piston Part No. Type Part No. Type Part No. Type Part No. Type diameter [mm] Stroke 50 mm 100 mm 160 mm 200 mm FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF Stroke 250 mm 320 mm 400 mm 500 mm FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF FENG KF 20 Internet: Subject to change 2017/10

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