Wittenstein Components & Systems. Catalog 2012/2013 - page 33

LK

+

/LPK

+

 

Economical right-angle precision

The flexible LK

+

/LPK

+

 all-round talent 

with an excellent price/performance 
ratio is ideal for all applications where 
economical precision is required.

LPBK

+

 

Economical right-angle precision

The logical further development of the 
LPK

+

 is the LPBK

+

. The highly compact 

LPBK

+

 ensures that optimum results 

can be achieved even under the most 
confined conditions.

Simple and convenient

From an optimized design with our cymex

®

 software 

to the classic, patented WITTENSTEIN alpha mo-
tor mounting and grease volume adapted to each 
model – WITTENSTEIN alpha right-angle gearheads 
make your life so much easier.

Reliable and accurate

The low torsional backlash and high torsional rigid-
ity of your WITTENSTEIN alpha right-angle gear-
head assure maximum positioning accuracy of your 
drives and precision of your machines – even during 
highly dynamic operation up to 50,000 cycles/hour.

Power density

Servo right-angle gearheads 

Economy

276

LK

+

LPK

+

LPBK

+

V-Drive

  

economy

Right-angle gearheads

Economy

V-Drive

 

economy

Economical solution with proven 
WITTENSTEIN alpha quality

The servo worm gearhead with solid 
shaft, hollow shaft and hollow shaft 
flange outputs.
Output type:
VDHe: hollow shaft, smooth/keywayed
VDSe: solid shaft, smooth/keywayed

Maximum durability

Your WITTENSTEIN alpha right-angle gearhead 
is extremely reliable due to the overall design and 
100% WITTENSTEIN alpha inspections: 

“mount and  

forget”

. A length compensation feature integrated 

in your WITTENSTEIN alpha right-angle gearhead as 
standard maximizes the lifespan of your servo motor 
during high-speed continuous operation.

277

LK

+

LPK

+

LPBK

+

0 

 1000

2000  

3000

4000

5000  

6000

100

75

50

40

30

20

10

500

400

300

200

100

80

60

40

20

0 

 1000

 2000  

  3000

   4000

    5000        6000

LK

+

  050  

LK

+

  070  

LK

+

  090  

LK

+

  120  

LK

+

  155  

LPK

+

 050

LPK

+

 070

LPK

+

 090

LPK

+

  120  

LPK

+

  155  

LK

+

/LPK

+

/LPBK

+

 

– The economical bevel gears

The flexible LK

+

/LPK

+

/LPBK

+ 

all-round 

talent with an excellent price/perfor-
mance ratio is ideal for all applications 
where economical precision is required.
Thanks to their perfectly-matched bevel 
gear toothing, the LK

+

/LPK

+

 and LPBK

+

 

right-angle gearheads achieve a level 
of economic precision which is ideally 
suited to all areas of application.

Quick size selection

LK

+

 (example for i = 1)

For applications in cyclic operation (ED 

≥

 60%)

LPK

+

/LPBK

+

 (example for i = 5)

For applications in cyclic operation (ED 

≥

 60%)

Max. input speed [rpm]

Max. acceleration tor

que at output [Nm]

Max. input speed [rpm]

Max. acceleration tor

que at output [Nm]

278

LK

+

LPK

+

LPBK

+

1 – 1

3 – 100

3 – 100

≤ 15

≤ 12

≤ 12

–

–

–

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

Right-angle gearheads

Economy

LK

+

 · High power density 
 · High positioning accuracy
 · Compact design
 · Ratio i = 1

LPK

+

 

 · High power density 
 · High positioning accuracy
 · Compact design

LPBK

+

 

 ·  Applications in continuous 

operation (ED ≥ 60%)

 · Ideal for belt applications
 · High positioning accuracy
 · Compact design

Versions and Applications

Features

LK

+

from page 280

LPK

+

from page 290

LPBK

+

from page 300

Ratios 

c)

 

Torsional backlash 
[arcmin] 

c)

Standard

Reduced

Output type

Smooth output shaft

Keywayed output shaft

Output flange

Input type

Motor mounted version

Type

Food-grade lubrication 

a)

 

b)

Accessories

Coupling

Rack

Belt pulley

NEMA flange

 

a)

 

Power reduction: technical data available upon request     

 

b)

 

Please contact WITTENSTEIN alpha     

 

c)

 

In relation to reference sizes

Comparison

279

1

2.5

22

1.2

11

5

44

3200

5000

0.2
1.8

≤ 25

–

100

23

650
146

95

> 20000

0.7
1.5

≤ 72

+90
194

IP 64

0.14
0.12

LK

+

 050 

1-stage

1-stage

Ratio 

i

Max. acceleration torque

(max. 1000 cycles per hour)

T

2B

 

Nm
in.lb

Nominal output torque

(with n

1N

)

T

2N

 

Nm
in.lb

Emergency stop torque

(permitted 1000 times during the service life of the gearhead)

T

2Not

 

Nm
in.lb

Nominal input speed

(with T

2N

 and 20°C ambient temperature)

 a)

n

1N

 

rpm

Max. input speed

n

1Max

 

rpm

Mean no load running torque

(with n

1

 = 3000 rpm and 20°C gearhead temperature) 

T

012

 

Nm
in.lb

Max. torsional backlash 

j

t

 

arcmin

Torsional rigidity 

C

t21

Nm/ arcmin

in.lb/ arcmin

Max. axial force 

b)

 

F

2AMax

 

N
lb

f

Max. radial force 

b)

 

F

2RMax

 

N
lb

f

Efficiency at full load 

η

 

%

Service life

(For calculation, see the Chapter “Information”)

L

h

 

h

Weight incl. standard adapter plate 

m

kg
lb

m

Operating noise

(with n

1

 = 3000 rpm no load) 

L

PA

 

dB(A)

Max. permitted housing temperature  

°C

F

Ambient temperature 

°C

-15 to +40

F

5 to 104

Lubrication

Lubricated for life

Paint

without

Direction of rotation

Motor and gearhead same direction

Protection class

Moment of inertia

(relates to the drive)

J

1

 

kgcm

2

10

-3

 in.lb.s

2

a)

 For higher ambient temperatures, please reduce input speed

b)

 Refers to center of the output shaft, if 

n

2  

= 1000 rpm

280

alpha

LK

+

A

CAD data is available under www.wittenstein-alpha.com

Right-angle gearheads

Economy

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 diameter is compensated by a bushing.

Motor mounting according to operating manual

 !

1-stage:

View A

281

1

7

60

3.7

33
15

130

3000

4500

0.4
3.5

≤ 20

–

200

45

1450

330

95

> 20000

1.9
4.2

≤ 73

+90
194

IP 64

0.7
0.6

LK

+

 070 

1-stage

1-stage

Ratio 

i

Max. acceleration torque

(max. 1000 cycles per hour)

T

2B

 

Nm
in.lb

Nominal output torque

(with n

1N

)

T

2N

 

Nm
in.lb

Emergencye stop torque

(permitted 1000 times during the service life of the gearhead)

T

2Not

 

Nm
in.lb

Nominal input speed

(with T

2N

 and 20°C ambient temperature) 

a)

n

1N

 

rpm

Max. input speed

n

1Max

 

rpm

Mean no load running torque

(with n

1

 = 3000 rpm and 20°C gearhead temperature) 

T

012

 

Nm
in.lb

Max. torsional backlash 

j

t

 

arcmin

Torsional rigidity 

C

t21

 

Nm/ arcmin

in.lb/ arcmin

Max. axial force 

b)

 

F

2AMax

 

N
lb

f

Max. radial force 

b)

 

F

2RMax

 

N
lb

f

Efficiency at full load 

η

 

%

Service life

(For calculation, see the Chapter “Information”)

L

h

 

h

Weight incl. standard adapter plate 

m 

kg
lb

m

Operating noise

(with n

1

 = 3000 rpm no load) 

L

PA

 

dB(A)

Max. permitted housing temperature  

°C

F

Ambient temperature 

°C

-15 to 40

F

5 to 104

Lubrication

Lubricated for life

Paint

without

Direction of rotation

Motor and gearhead same direction

Protection class

Moment of inertia

(relates to the drive)

J

1

 

kgcm

2

10

-3

 in.lb.s

2

a)

 For higher ambient temperatures, please reduce input speed

b)

 Refers to center of the output shaft, if 

n

2  

= 1000 rpm

282

alpha

LK

+

A

CAD data is available under www.wittenstein-alpha.com

Right-angle gearheads

Economy

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 diameter is compensated by a bushing.

Motor mounting according to operating manual

 !

1-stage:

View A

283