--- title: NPK url: "https://www.wittenstein-group.com/en-us/product/npk" date: 2026-02-12 modified: 2026-02-24 lastUpdated: 2026-04-13 --- # NPK alpha Value Line Bevel gearbox The NPK bevel gearbox impresses with its extremely compact construction, attractive design and outstanding operating efficiency. The integrated bevel gear stage ensures high power density in the smallest of spaces – ideal for demanding applications with limited installation space. See CAD data and configure product Downloads ![](https://www.wittenstein-group.com/typo3temp/assets/_processed_/4/f/csm_NPK-IMAGE_00757391fd.webp) ### 3 – 100 Ratio ### 14 – 700 Nm Max. torque ### ≤ 11 arcmin Backlash [ Technical details ](#tech-details) [ Further information ](#further-info) [ Related products ](#related) [ Request consultation ](#consultation) ![](https://www.wittenstein-group.com/epim-fs/Wittenstein-Prod-static_content/usp/57-options.svg) ###### Universally applicable The planetary gearboxes of the alpha Value Line are suitable for universal application and offer the best, most economical solution for virtually all requirements – on each axis and for all industries ![](https://www.wittenstein-group.com/epim-fs/Wittenstein-Prod-static_content/usp/60-1-costEffectiveness.svg) ###### High cost-effectiveness The NPK bevel gearbox impresses with its low acquisition costs, high operating efficiency and maintenance-free operation over its entire service life ![](https://www.wittenstein-group.com/epim-fs/Wittenstein-Prod-static_content/usp/45-2-flexibleMotorMounting.svg) ###### Flexible motor connection Connection of all common servo motors using a flexible and screwed adapter plate and a large number of motor shaft diameters - Configure product - Technical data - Available options - Downloads | Product type | | NPK | |---|---|---| | Design | | MF | | Ratio | | 3 – 100 | | Number of sizes | | 5 | | Max. backlash c) | jt | ≤ 11 arcmin | | Max. torque | T2α | 14 – 700 Nm | | Max. input speed | n1Max | 5000 rpm | | c) In relation to reference sizes | | **Output shape** | | |---|---| | Smooth shaft | ✓ | | Shaft with key d) | ✓ | | **Input shape** | | | Motor-mounted | ✓ | | **Characteristic** | | | Food-grade lubrication a) b) | ✓ | | **System solutions** | | | Linear system (rack / pinion) | ✓ | | **Accessory** (for more information, see the relevant product pages) | | | Coupling | ✓ | | a) Performance reduction: Technical data available on request b) Please contact WITTENSTEIN alpha d) Performance reduction: For detailed sizing, please use our [cymex®](https://stage.wittenstein-group.com/de-de/produkt/cymex-5) design software | | Document name | Document type | Language | Downloads | |---|---|---|---| | ![CP, CPS, CPK, CPSK, NP, NPL, NPS, NPT, NPR, NTP, NPK, NPLK, NPSK, NPTK, NPRK, CVS, CVH, NVS, NVH, HDV](https://www.wittenstein-group.com/fileadmin/processed_epim_fs/pdf-thumbnails/ALPHA-BASIC-LINE-VALUE-LINE-US-fb4a30e90750.webp "Catalog alpha Basic Line & alpha Value Line") Catalog alpha Basic Line & alpha Value Line CP, CPS, CPK, CPSK, NP, NPL, NPS, NPT, NPR, NTP, NPK, NPLK, NPSK, NPTK, NPRK, CVS, CVH, NVS, NVH, HDV | Brochure /Catalog | American English | [ Download (22 KB) ](https://www.wittenstein-group.com/index.php?eID=dumpWittFile&t=f&f=4114&dl=1&st=1739&lg=0&token=53d8b5d5ef298cf06e536271c220fab32aeeade3)[ Open in viewer ](https://www.wittenstein-group.com/index.php?eID=dumpWittFile&t=f&f=4114&st=1739&lg=0&token=cfadb9ddb03689be8f750f4f29e33e5ee0d02005) | | ![NPK, NPLK, NPSK, NPTK, NPRK](https://www.wittenstein-group.com/fileadmin/processed_epim_fs/pdf-thumbnails/ALPHA-BASIC-LINE-VALUE-LINE-NPK-NPLK-NPSK-NPTK-NPRK-8bdbd5b0c46f.webp "Technical data / Dimension sheets NPK / NPLK / NPSK / NPTK / NPRK") Technical data / Dimension sheets NPK / NPLK / NPSK / NPTK / NPRK NPK, NPLK, NPSK, NPTK, NPRK | Brochure /Catalog | Neutral | [ Download (2 KB) ](https://www.wittenstein-group.com/index.php?eID=dumpWittFile&t=f&f=3253&dl=1&st=1739&lg=0&token=e8b2dbd94d86741c57e8007f5beb11c232001ad8)[ Open in viewer ](https://www.wittenstein-group.com/index.php?eID=dumpWittFile&t=f&f=3253&st=1739&lg=0&token=0c7fcbabbd789c4d50b47114f528080a115ce446) | | ![Technical documents CP, CPS, CPK, CPSK, NP, NPL, NPS, NPT, NPR, NTP, NPK, NPLK, NPTK, NPRK](https://www.wittenstein-group.com/fileadmin/processed_epim_fs/pdf-thumbnails/OPERATING-MANUAL-NP-NPK-NPL-NPLK-NPR-NPRK-NPS-NPSK-NPT-NPTK-NTP-CP-CPK-CPS-CPSK-ea25c5cc4d41.webp "alpha Value Line / alpha Basic Line") alpha Value Line / alpha Basic Line Technical documents CP, CPS, CPK, CPSK, NP, NPL, NPS, NPT, NPR, NTP, NPK, NPLK, NPTK, NPRK | Operating manual | Neutral | [ Download (3 KB) ](https://www.wittenstein-group.com/index.php?eID=dumpWittFile&t=f&f=3321&dl=1&st=1739&lg=0&token=42f5985a1ce2b3567fe78a37fec8fbf9b55c5d16)[ Open in viewer ](https://www.wittenstein-group.com/index.php?eID=dumpWittFile&t=f&f=3321&st=1739&lg=0&token=985ed6e750bb9fd85c0169596c7319737296e33a) | | ![](https://www.wittenstein-group.com/fileadmin/processed_epim_fs/pdf-thumbnails/INFORMATION-SEALING-PLATE-190dba672cbe.webp "Sealing Plate") Sealing Plate | Operating manual | Neutral | [ Download (121 B) ](https://www.wittenstein-group.com/index.php?eID=dumpWittFile&t=f&f=3293&dl=1&st=1739&lg=0&token=c3d69de968cae2150db287914e6e8f2b6fe59b02)[ Open in viewer ](https://www.wittenstein-group.com/index.php?eID=dumpWittFile&t=f&f=3293&st=1739&lg=0&token=94da936c558ddf2b56f754082763bd13e3759ab7) | | Ordering code / CAD data NPK | CAD / CAE | Neutral | [ Open in viewer ](https://cad-point.wittenstein-group.com/GearDetails/NPK) | ![](https://www.wittenstein-group.com/fileadmin/_processed_/9/c/csm_logo-sculpture_e38190faf6.webp) Contact us ------------ Would you like to learn more about our solutions? We would be happy to advise you—personally, competently, and tailored to your requirements. [info@wittenstein-us.com](#) [ 1 630 540-5300 ](tel:16305405300) [ To the contact form ](https://www.wittenstein-group.com/en-us/contact-locations/contact) ![](https://www.wittenstein-group.com/fileadmin/_processed_/6/0/csm_npk-main-image_04b8dd767a.webp) Compatible with all common servo motors – thanks to screwed adapter plate and large selection of motor shaft diameters The particularly compact angle step allows insertion even in minimal installation spaces Wide range of ratios from i = 3 to i = 100 – for maximum application versatility The beautifully designed housing emphasizes the dynamics of the gearbox and adds visual accents ### cynapse® & smart services ### Accessories ![](https://www.wittenstein-group.com/fileadmin/_processed_/f/9/csm_cynapse-produkseite-element_slider_3783d47093.webp) With cynapse® and smart services, you can unleash the full potential of your drive system: sensor data is processed, visualized, and analyzed intelligently. Find out how the combination of gearboxes with cynapse® and our smart services can make your digital production faster, safer, and more efficient. [Read more](https://www.wittenstein-group.com/int-en/products/software-and-digitalization/cynapse-smart-services) ![](https://www.wittenstein-group.com/fileadmin/_processed_/3/0/csm_ELASTOMER-COUPLING-IMAGE-tabmodule_3a6e5abaa1.webp) Optimization of your value chain: Utilize the combination of gearboxes and accessories in a complete package to streamline your internal processes. Find suitable elastomer couplings for our products. [Read more](https://www.wittenstein-group.com/en-us/product/elastomer-couplings) Related products ------------------ ![](https://www.wittenstein-group.com/epim-fs/Wittenstein-Prod-AssetsPublic/NP-IMAGE.PNG)##### [ NP ](https://www.wittenstein-group.com/en-us/product/np) alpha Value Line Ratio3 – 100Max. torque18 – 800 NmBacklash≤ 8 arcmin ![](https://www.wittenstein-group.com/typo3temp/assets/_processed_/5/0/csm_NPSK-IMAGE_33b7ab0519.webp)##### [ NPSK ](https://www.wittenstein-group.com/en-us/product/npsk) alpha Value Line Ratio3 – 100Max. torque33 – 700 NmBacklash≤ 11 arcmin ![](https://www.wittenstein-group.com/typo3temp/assets/_processed_/9/a/csm_NPLK-IMAGE_39e6df13ec.webp)##### [ NPLK ](https://www.wittenstein-group.com/en-us/product/nplk) alpha Value Line Ratio3 – 100Max. torque33 – 700 NmBacklash≤ 11 arcmin ![](https://www.wittenstein-group.com/typo3temp/assets/_processed_/2/f/csm_ELASTOMER-COUPLING-IMAGE_5914e4c022.webp)##### [ Elastomer couplings ](https://www.wittenstein-group.com/en-us/product/elastomer-couplings) Max. acceleration torque0,1 – 2700 NmDynamic torsional rigidity0,1 – 52 Nm/arcminBore diameter D1/D26 – 80 mm ![](https://www.wittenstein-group.com/typo3temp/assets/_processed_/7/e/csm_METALBELLOWS-COUPLING-IMAGE_02aaadbe11.webp)##### [ Metal bellows couplings ](https://www.wittenstein-group.com/en-us/product/metal-bellows-couplings) Max. acceleration torque2 – 10000 NmTorsional rigidity4 – 3172 Nm/arcminBore diameter D1/D24 – 180 mm ![](https://www.wittenstein-group.com/typo3temp/assets/_processed_/c/1/csm_SAFETY-COUPLING-IMAGE_ed1d6bb91e.webp)##### [ Torque limiters ](https://www.wittenstein-group.com/en-us/product/torque-limiters) Release torque0,1 – 2700 NmTorsional rigidity4 – 379 Nm/arcminBore diameter D1/D23 – 100 mm