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alpha Value Line - NPS

alpha Value Line - NPS
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alpha Value Line - NPS

Product catalog summary
Overview: The document details the technical specifications and sizing guidelines for the WITTENSTEIN alpha Value Line - NPS series gearheads, including models NP, NPS, NPL, NPT, and NPR. These gearheads are designed for applications requiring high precision, reliability, and flexibility.
Specifications: The gearheads offer ratios from 3 to 100 with a torsional backlash of ≤ 8 arcmin. They support high axial and radial forces, with a maximum torque of 800 Nm (7100 in.lb) and input speeds between 8000 to 10000 rpm, achieving 97% efficiency. They come with smooth and grooved shaft options.
Applications: Suitable for continuous and cyclic operations, these gearheads are ideal for machine tools, manufacturing systems, and packaging machinery. Options include high torque versions, food-grade lubrication, and various mounting configurations.
Sizing Procedure: A simplified sizing process is outlined, focusing on maximum motor torque and application-specific factors. Steps include determining maximum application torque, operating mode factor, and sizing factor, then comparing with maximum gearhead torque.
Technical Data: Detailed data for different models covers maximum torque, input speed, radial force, and noise levels. Guidelines for handling radial and axial forces at the output are included.
Additional Information: An online configurator for adapter plates and cymex® software for application-specific sizing are available. The gearheads have a protection class of IP 65, with lubrication and paint options specified.
Procedures: Instructions for checking motor shaft fit, permissible motor shaft length, and motor mounting are provided. The process for selecting a suitable adapter plate using an online configurator is outlined.
Standards and Norms: References to DIN standards for output shaft keys and splined shafts are included, along with permissible housing and ambient temperature ranges.
Recommendations: The document recommends using the cymex® tool for application-specific sizing and emphasizes considering the operating mode factor and sizing factor when selecting gearheads.
Key Data from Tables: Tables provide values for maximum torque, emergency stop torque, input speeds, forces, and moment of inertia for different models. Information on clamping hub diameters and output shaft variants is also included.
Glossary: Terms such as equivalent force, equivalent application torque, sizing factor, operating mode factor, moment of inertia, operating noise, and maximum radial force are defined, explaining their significance in gearhead selection and operation.
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Catalog excerpts

alpha Value Line - NPS-1

alpha Value Line - NPS Sizing and Technical Data Efficient Flexible Reliable

 Open the catalog to page 1
alpha Value Line - NPS-3

WITTENSTEIN alpha adapted for any axis The perfect drive solution whatever the requirements are WITTENSTEIN alpha develops complete, singlesupplier solutions for driving any axis. They can be used in virtually any application - from high-precision axes in machine tools and manufacturing systems to packaging machinery where maximum productivity is a must. The name WITTENSTEIN alpha is synonymous with premium quality and optimal reliability, high precision and synchronization accuracy, maximum power density, a long lifetime and very simple motor mounting. The alpha Value Line is a new product family...

 Open the catalog to page 3
alpha Value Line - NPS-4

Sizing of the alpha Value Line NP Auslegung alpha Value Line – – NPS Simplified sizing for servo Servomotoren über maximales Motormoment: Mmax i i T T A: Vereinfachte Auslegung bei motors based on the maximum motor torque:Mmax * * ≤ ≤ 2α 2α Sizing based on the application B: Auslegung über die Applikation Step 1: Schritt 1: Determine the maximum Bestimmung des maximalen application torque: T T [Nm] [Nm] Applikationsmoments2b=2b: Step 3: Schritt 3: Determine the sizing factor Bestimmung des Auslegungsfaktor f with the operaAuslegungsfaktors ting mode factor KM f K mit dem Betriebsartfaktora= M...

 Open the catalog to page 4
alpha Value Line - NPS-5

Berücksichtigung von Radial-of the Axialkräften am forces at the output: Account must be taken oder radial and axial Abtrieb: Bei Kräften auf den Abtriebsteps 6 and 7 if forces are present at the output (e.g.durch montierte Please also carry out bitte zusätzlich Schritt 6 und 7 durchführen (z.B. if timing belt pulleys, Riemenscheiben, Ritzel oder Hebel). pinions or levers are mounted there). Schritt 6 (falls externe Kräfte vorhanden): Step 6 (if external forces are present): Bestimmung der the forces acting on the output Determine wirkenden Kräfte und and check Randbedingungen Überprüfung der...

 Open the catalog to page 5
alpha Value Line - NPS-6

a) Other ratios available on request. b) Permitted 1000 times during the service life of the gearhead. If T2a > T2N0U then T2N01 is the maximum permitted value. c) At continous operation and 20°C ambient temperature. Higher speeds possible if calculated using cymex®. d) Refers to the center of the output shaft at n2 = 150 rpm. e) Depending on the clamping hub diameter and the selected adapter plate. f At i =10 / i = 100 and ni= 3000 rpm at no load. You can select a suitable adapter plate using the online configurator on www.wittenstein-alpha.com Quick gearhead selection based on the motor characteristic*:...

 Open the catalog to page 6
alpha Value Line - NPS-7

Motor shaft diameter [mm] 32max.21 17,5 min. Alternatives: Output shaft variants Non-tolerated dimensions ±1 mm 1) Check motor shaft fit. 2) Min. / max. permissible motor shaft length. Longer motor shafts are adaptable; please contact us. 3) The dimensions depend on the motor. 4) Smaller motor shaft diameters are compensated by a bushing with a minimum thickness of 1 mm. /\ Motor mounting according to operating manual

 Open the catalog to page 7
alpha Value Line - NPS-8

a) Other ratios available on request. b) Permitted 1000 times during the service life of the gearhead. If T2a > T2N0U then T2N01 is the maximum permitted value. c) At continous operation and 20°C ambient temperature. Higher speeds possible if calculated using cymex®. d) Refers to the center of the output shaft at n2 = 150 rpm. e) Depending on the clamping hub diameter and the selected adapter plate. f At i =10 / i = 100 and ni= 3000 rpm at no load. You can select a suitable adapter plate using the online configurator on www.wittenstein-alpha.com Quick gearhead selection based on the motor characteristic*:...

 Open the catalog to page 8
alpha Value Line - NPS-9

Motor shaft diameter [mm] Alternatives: Output shaft variants Output shaft with key Splined shaft Non-tolerated dimensions ±1 mm 1) Check motor shaft fit. 2) Min. / max. permissible motor shaft length. Longer motor shafts are adaptable; please contact us. 3) The dimensions depend on the motor. 4) Smaller motor shaft diameters are compensated by a bushing with a minimum thickness of 1 mm. ! Motor mounting according to operating manual

 Open the catalog to page 9
alpha Value Line - NPS-10

a) Other ratios available on request. b) Permitted 1000 times during the service life of the gearhead. If T2a > T2N0U then T2N01 is the maximum permitted value. c) At continous operation and 20°C ambient temperature. Higher speeds possible if calculated using cymex®. d) Refers to the center of the output shaft at n2 = 150 rpm. e) Depending on the clamping hub diameter and the selected adapter plate. f At i =10 / i = 100 and ni= 3000 rpm at no load. You can select a suitable adapter plate using the online configurator on www.wittenstein-alpha.com Quick gearhead selection based on the motor characteristic*:...

 Open the catalog to page 10
alpha Value Line - NPS-11

Motor shaft diameter [mm] □ 120 min.31 Alternatives: Output shaft variants Non-tolerated dimensions ±1 mm 1) Check motor shaft fit. 2) Min. / max. permissible motor shaft length. Longer motor shafts are adaptable; please contact us. 3) The dimensions depend on the motor. 4) Smaller motor shaft diameters are compensated by a bushing with a minimum thickness of 1 mm. /\ Motor mounting according to operating manual

 Open the catalog to page 11
alpha Value Line - NPS-12

a) Other ratios available on request. b) Permitted 1000 times during the service life of the gearhead. If T2a > T2Not, then T2Not is the maximum permitted value. c) At continous operation and 20°C ambient temperature. Higher speeds possible if calculated using cymex®. d) Refers to the center of the output shaft at n2 = 150 rpm. e) Depending on the clamping hub diameter and the selected adapter plate. f At i =10 / i = 100 and ni= 3000 rpm at no load. You can select a suitable adapter plate using the online configurator on www.wittenstein-alpha.com Quick gearhead selection based on the motor characteristic*:...

 Open the catalog to page 12
alpha Value Line - NPS-13

Motor shaft diameter [mm] 2-stage 1-stage Up to 38 4) (K) clamping hub diameter Alternatives: Output shaft variants Non-tolerated dimensions ±1 mm 1) Check motor shaft fit. 2) Min. / max. permissible motor shaft length. Longer motor shafts are adaptable; please contact us. 3) The dimensions depend on the motor. 4) Smaller motor shaft diameters are compensated by a bushing with a minimum thickness of 1 mm. /\ Motor mounting according to operating manual

 Open the catalog to page 13
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.