Stober 1 Servo Gear Units

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PKX/PK Series: RIGHT ANGLE – Shaft Output PKX/PK Series Output Shaft Options (“P” or “G” designated in part number, for example: P421S P ... P Shaft with Key l4 l2 l1 d t G Shaft without Key l4 l2 d u s3 s2 D k6 l1 l2 l4 S Unit mm T U (2) mm mm mm (1) mm W x H x L P2* 12 +0.012/+0.001 2 22 36 M4 13.5 A4x4x18 P3* 16 +0.012/+0.001 2 28 48 M5 18.0 A5x5x22 P4* 22 +0.015/+0.002 3 36 56 M8 24.5 A6x6x28 P5 32 +0.018/+0.002 3 58 88 M12 35.0 A10x8x50 P7 40 +0.018/+0.002 4 82 112 M16 43.0 A12x8x70 P8 55 +0.021/+0.002 6 82 112 M20 59.0 A16x10x70 P9 75 +0.021/+0.002 7 105 143 M20 79.5 A20x12x90 *PKX only d k6 l2 l4 Unit mm mm mm S 3 (1) P2* 12 +0.012/+0.001 22 36 M4 P3* 16 +0.012/+0.001 28 48 M5 P4* 22 +0.015/+0.002 36 56 M8 P5 32 +0.018/+0.002 58 88 M12 P7 40 +0.018/+0.002 82 112 M16 P8 55 +0.021/+0.002 82 112 M20 P9 75 +0.021/+0.002 105 143 M20 *PKX only (1) The center hole in shafts with keys (Option “P”) are machined to DIN 332 T2 shape DR. (2) Feather keys are toleranced according to standard DIN 6885. Permissible Motor Tilting Torque The permissible tilting torque of the motor attached to the gear unit is a result of the static and dynamic load “F” from the motor weight, mass acceleration, and vibration multiplied by the distance from the center of gravity “Is” of the motor. PKX/PK Series Load/Life/Speed Calculations The permissible load and tilting moment values are based on an output speed of 100 RPM. For higher speeds the following applies, where n 2 is the desired speed: F2AX = F 2A 3 n 2 100 Is F F 2R 3 n 2 100 n 2b1 • t b1 +...+ n 2bn • t bn F 2RX = M 1k = F × I s < M 1K M 2KX = The application output tilting moment should be determined by the following formula: 2 • F 2a • y 2 + F 2rb • (x 2 + z 2 ) M 2A = < M 2KB 1000 3 n 2b1 • t b1 • M 2kb1 3 +...+ n 2bn • t bn • M 2kbn 3 M 2K 3 n 2 100 M 2ka = < M 2K n 2b1 • t b1 +...+ n 2bn • t bn 3 n 2b1 • t b1 • F 2rb1 3 +...+ n 2bn • t bn • F 2rbn 3 F 2r = < F 2R Where: F 2a Axial Load at Output Shaft M 2K Rated Tilting Torque F 2A Permissible Axial Load M 2k Equivalent Tilting Load F 2r Radial Load at Output Shaft M 2KB Acceleration Tilting Torque F 2R Permissible Radial Load z 2 Distance Factor F 2RB Acceleration Permissible Radial Load M 1K PK (ME Motor Adapters) PKX (MF Motor Adapters) ME10 ME20 ME30 ME40 ME50 PKX3 PKX4 PKX5 PKX7 Nm 25 60 125 250 600 12 24 50 100 All formulas shown are based on METRIC values Upper case letters are permissible values. Lower case letters are for existing values. –F 2a +F 2a y 2 +F 2r –F 2r x 2 z 2 The hours of life (L h ) of the unit can be determined by the following formula: bearing life for duty cycle < 40% L h > 10,000 hours if M 2K /M 2A < 1.25 and > 1 L h > 20,000 hours if M 2K /M 2A > 1.25 and > 1.5 L h > 30,000 hours if M 2K /M 2A < 1.5 bearing life for duty cycle > 40% 40% L hA = L h Duty Cycle ( ) 220 Servo Gear Units V.28 800.711.3588 • www.stober.com
Overview PKX/PK Output Bearing Options R Ball Bearing D Double Row Angular Contact Bearing Z Cylindrical Roller Bearing PKX Series Characteristics: Applications: PK Series • Minimal frictional torque • Good radial load capacity • Axial load approx. 35% of radial load • Spur geared rack/pinion • Couplings • Belt with or without light tension • Low frictional torque • Good radial bearing capacity • Axial load approx. 50% of radial load • Helical geared rack/pinion • Couplings with high axial load • Belt with or without light tension • Very good radial load capacity • Axial load approx. 20% of radial load • Prestressed belt drive • Prestressed spur rack drive • Applications with high radial loads and/or high service requirements Permissible Output Shaft Load and Tilting Moments* Z 2 (mm) F 2A (N) F 2R (N) F 2RB (N) M 2K (Nm) M 2KB (Nm) R Ball Bearing D P2* 17 500 1200 1300 34 36 P3* 21 1000 2500 2500 88 88 P4* 22 1500 4000 4500 160 180 P5 23 2300 6500 7000 338 364 P7 26 2900 8000 9000 536 603 P8 28 4700 13,000 18,000 897 1242 P9 40 6000 18,000 27,000 1665 2498 Double Row Angular Contact Bearing P3* 24 1400 2750 2750 105 105 P4* 25 2250 4500 5000 194 215 P5 29 3500 7000 8000 406 464 P7 31 4500 9000 10000 648 720 P8 35 7500 15,000 18,000 1140 1368 P9 51 10,000 20,000 30,000 2070 3105 Z Cylindrical Roller Bearing P3* 21 600 3000 3000 105 105 P4* 22 1000 5000 5000 200 200 P5 23 1600 8000 8000 416 416 P7 26 2000 10,000 10,000 670 670 P8 28 3600 18,000 18,000 1242 1242 P9 40 5000 27,000 35,000 2500 3238 * Refer to illustration and definitions on page 220. Sizes P2-P4 available on PKX only. During EMERGENCY OFF operation (maximum stops per gearhead = 1000) the permissible values in the table for F 2A , F 2R , and M 2K can be multiplied by a factor of 2. The permissible load values given are valid with the load applied to the center of the output shaft (x 2 ). 800.711.3588 • www.stober.com Servo Gear Units V.28 221 PKX/PK Series: RIGHT ANGLE – Shaft Output
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Servo Gear Units Geared to a higher
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Geared to a higher standard Conten
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Geared to a higher standard Servic
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Unique STOBER Quality and Design Fe
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Overview Selection At-a-Glance Righ
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Overview Selection At-a-Glance RIGH
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Gearhead Sizing to your Specific Ap
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Overview Selection Options At-a-Gla
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Overview P/PA Series Motor Mounting
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Overview P/PA No Load Running Torqu
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Selection Data P2 Exact Ratio (i) O
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Selection Data Exact Ratio (i) P/PA
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P9 Exact Ratio (i) Output Torque Mo
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Dimensional Data Large Input Option
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Overview Note: Overview data is gen
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Overview PH Series Permissible Moto
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Selection Data Exact Ratio (i) Outp
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Dimensional Data Table 1 Dimensions
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Overview Permissible Motor Tilting
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Dimensional Data PE with MAL Input
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Overview C40 C50 C61 C71 C81 C91 2
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Overview C Series Lubrication Maint
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Selection Data Reducer Ratio (i) No
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Dimensional Data SMS Reducer Option
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Overview F Series Motor Mounting Pl
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Overview Overhung Load Calculations
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Dimensional Data “V” Shaft Outp
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Dimensional Data “W” Double Bus
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Dimensional Data “A” Hollow Out
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Dimensional Data “S” Shrink Rin
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Overview K51 K61 K71 K81 K91 K101 3
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Overview K/KL Series Output Options
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Page 219: Overview PKX/PK Series Motor Mounti
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Page 253 and 254: Overview PHKX/PHK/PHQK Series Motor
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Selection Data Exact Ratio (i) Nomi
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Reducer Ratio (i) Nominal 1) M2N Ou
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Overview KS Series Motor Mounting P
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Overview IP69K/STAINLESS STEEL KSS
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Overview IP69K/STAINLESS STEEL KSS
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Selection Data IP69K/STAINLESS STEE
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Selection Data IP69K/STAINLESS STEE
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Dimensional Data IP69K/STAINLESS ST
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Technical Reference C Series Solid
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Technical Reference Values and Symb
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Other Products from STOBER ServoSto
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STOBER Servo Gear Units V.28
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Stober 1 Servo Gear Units

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