NPK / NPLK / NPSK / NPTK / NPRK bevel gearboxes

NPK bevel gearbox with smooth shaft
NPSK bevel gearbox with SP⁺ output geometry
NPLK bevel gearbox with reinforced bearings and B14 output geometry
NPTK bevel gearbox with TP⁺ output geometry
NPRK bevel gearbox with slotted holes for optimum rack and pinion connection
Motor mounting alpha Value Line Planetary and right-angle gearboxes

Individual Talents

Total flexibility, even in limited space. The bevel gearboxes of the alpha Value Line combine the variety of the NP series with a compact and powerful bevel gear stage. This permits maximum flexibility through the configuration of five different output versions.

Learn more

Further information on the predecessor LPK⁺ can be found here.

Downloads

Technical data / Dimension sheets (2 MB)
Catalog alpha Basic Line & alpha Value Line (23 MB)
Ordering code / CAD data NPK
Technical documents (incl. operating manual) (3 MB)
Instruction sheet: Sealing Plate (122 KB)
Operating manual cynapse^® (629 KB)
Motor mounting video alpha Value Line

Your benefits
Technical data
Options

Features	NPK MF-version	NPLK MF-version	NPSK MF-version	NPTK MF-version	NPRK MF-version
Power density	++	++	++	++	++
Positioning accuarcy	+	+	+	+	+
High input speed	++	++	++	++	++
Torsional rigidity	++	++	++	++	++
Space-saving design	++	++	++	++	++

Application	NPK MF-version	NPLK MF-version	NPSK MF-version	NPTK MF-version	NPRK MF-version
Cyclic applications (ED ≤ 60%)	✓	✓	✓	✓	✓
Continuous operation (ED ≥ 60%)	✓	✓	✓	✓
For high axial and radial forces		✓	✓		✓

Detailed overview by size

		NPK MF-version	NPLK MF-version	NPSK MF-version	NPTK MF-version	NPRK MF-version
Ratio	i	3 - 100	3 - 100	3 - 100	3 - 100	3 - 100
Number of sizes		5	4	4	5	4
Max. backlash	j_t [arcmin]	Standard ≤ 11	Standard ≤ 11	Standard ≤ 11	Standard ≤ 11	Standard ≤ 11
Torsional rigidity	C_t21 [Nm/arcmin]	0,9 - 54	2,4 - 54	2,4 - 54	0,9 - 54	2,4 - 54
Max. torque	T_2α [Nm]	14 - 700	33 - 700	33 - 700	14 - 700	33 -700
Max. input speed	n_1Max [rpm]	5000	5000	5000	5000	5000
Max. tilting moment	M_2KMax [Nm]	23 - 704	152 - 952	152 - 952	17 - 256	152 - 952

	NPK MF-version	NPLK MF-version	NPSK MF-version	NPTK MF-version	NPRK MF-version
Output type
Smooth shaft	✓	✓	✓		✓
Shaft with key ^b)	✓	✓	✓		✓
Splined shaft (DIN 5480)		✓	✓		✓
Flange				✓
Input type
Motor-mounted	✓	✓	✓	✓	✓
Characteristic
Food-grade lubrication ^{a) b)}	✓	✓
Accessories
Coupling	✓	✓

^a) Power reduction: technical data available on request

^b) Please contact WITTENSTEIN alpha

Product highlights

High flexibility

Various output versions offer design freedom tailored to individual requirements.

High economy

The gearboxes of the alpha Value Line are very economical to purchase, unbeatably efficient in operation, and maintenance free over their entire service life.

Flexible motor connection

Mounting of all common servo motors by means of a flexible and screw-fastened adapter plate as well as a large number of motor shaft diameters.

WITTENSTEIN alpha in all axes

Right-angle gearboxes

WITTENSTEIN alpha develops complete, single-supplier solutions for driving any axis. They can be used in virtually any application – from high-precision axes in manufacturing systems to packaging machinery where maximum productivity is called for.
The name WITTENSTEIN alpha is synonymous with premium quality and reliability, high precision and synchronization accuracy, the highest power density, a long lifetime and very simple motor mounting.