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R911324310 (MKD112C-058-KP0-RN)

MKD Synchronous Motors

Rated 5.0 stars (6 total reviews)
  In-Stock, Ships 3-5 Days
Expedited Lead Times on Select Parts
1 Year Warranty Included
Free Ground Shipping
Expedited Lead Times on Select Parts
1 Year Warranty Included
Free Ground Shipping
The R911324310 (MKD112C-058-KP0-RN) is a Bosch Rexroth servo motor with a centering diameter of 130 mm and a frame size of 112, featuring a flange size of 192 mm. This unit utilizes a shaft with keyway and shaft seal, following DIN 6885, and does not include a holding brake. It is equipped with resolver feedback for absolute position detection over more than 4096 revolutions. The motor delivers a continuous torque at standstill of 38.0 Nm and a rated torque of 26.9 Nm, with a maximum speed of 6,000 rpm and a peak current rating of 239 A. The power connector is top-mounted, and the design supports natural convection cooling. Protection level is IP65, and the operational ambient temperature range is 0°C to 40°C.

Technical Specifications

Centring Diameter
130 mm

Frame Size
192 mm

Frame Length
C

Cooling Method
Natural Convection

Equivalent Frame Length
38 Nm

Winding Code
058

Encoder System
RSF with absolute integrated

Positional detection
4,096 revs

Output Shaft Design
Keyway design as per DIN 6885

Motor Weight
45 kg

Peak Current Rating
239 Amperes

Power Connection Direction
Right

Performance Type
Standard

Housing Overtemperature
60K

Winding Overtemperature
100K

Shipping Availability
Global

How do the IP65 housing and shaft-seal/keyed-shaft interface on MKD112C-058-KP0-RN affect contamination tolerance and torque transmission integrity?

The IP65 guidance addresses dust-tightness and water-jet exposure when correctly installed, while the shaft seal limits ingress along the output. Its keyed interface maintains positive torque transfer by aiding coaxial couplings in coolant-rich machine-tool envelopes.

For vertical or loaded axes, when is a holding brake advisable if MKD112C-058-KP0-RN already provides 38.0 Nm continuous standstill torque?

The continuous standstill torque resists drift under command, however safety-critical or de-energized holding often requires a brake. Its specifies brake as optional and warns additional safeguarding may be necessary for falling-load risk.

What mounting precision follows from the 192 mm flange and 130 mm centering diameter, and how does this influence gearbox or belt-drive alignment?

The centering pilot constrains runout and concentricity to allowing coaxial alignment with reducers or pulleys. Its 192 mm bolt circle provides stiffness against side loading to support repeatable kinematic alignment in multi-axis frames.

How do low rotor inertia and a 3,000 rpm nominal speed aid acceleration profiles on MKD112C-058-KP0-RN for robotics or pick-and-place?

The reduced polar moment lowers torque required to change speed for compressing accel/decel times and improving point-to-point throughput. Its resolver feedback, tight loop bandwidth is achievable by mitigating overshoot during aggressive S-curve profiles.

How do zero-pulse multiplicity and 4,096-rev absolute range on MKD112 influence gear ratio selection and feed constants?

The MKD071/090/112 encoders generate multiple zero pulses per revolution, so overly large ratios or tiny feed constants can alias reference marks. It maintains encoder granularity and reliable reference detection.

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Internal Product Review

Bosch Rexroth Indramat designs the MKD112C-058-KP0-RN servo motor for 110 – 480 V supply and it operates with an angular rated speed of 3000 rpm in normal conditions. It offers 26.9 Nm of nominal torque, 38.0 Nm of standstill torque and 87.9 Nm short-term torque. This unit has a resolver/encoder absolute feedback system and it is housed in an IP65 rated enclosure. It has a balanced-keyed shaft and 192/130 mm flange/centering for easy retrofits.

Warranty

1-year-warranty
Indramat USA 1 Year Warranty

Repair

product repair We offer a repair service for the MKD112C-058-KP0-RN.
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