R911283876 (MKD112D-027-GP0-BN)
MKD Synchronous Motors
Technical Specifications
Cooling
Surface or Natural
Permissible Transport and Storage Temperature
-20 to +800C
Ambient Temperature
00C to 400C
Maximum Set-up Height
1000 MSL
Weight
56kg
Recommended Pole Pairs
4
Winding Inductivity
5.65 Mh
Voltage Constant
154.5 V
Torque Constant
1.7Nm/A
Winding Resistance
0.35 Ohms at 200C
Characteristic Motor Speed
3000 min-1
Rated Speed
2000 min-1
Rated Frequency
133Hz
Frequently Asked Questions
What are the mechanical implications of the keyed shaft per DIN 6885 and shaft seal on the MKD112D-027-GP0-BN for backlash control and ingress resistance in servo gearhead couplings?
The parallel key transmits torque without clamp slippage, maintaining torsional stiffness for precision indexing. The sealing ring reduces lubricant washout and particulates ingress at the bearing journal, extending life in dusty or spray-prone stations.
Under natural convection, what thermal constants and duty assumptions govern the MKD112D-027-GP0-BN’s 48 Nm continuous standstill torque at 35 A, and how do surface cooling or overtemperature allowances shift continuous ratings?
Rexroth characterizes continuous torque with specified housing overtemperature and time constants; MKD112D shows ~90/40-minute thermal constants (natural/surface). Increased cooling or permitted ΔT elevates continuous torque while maintaining insulation limits and resolver stability.
How do the 130 mm centering diameter, 112 frame, and flange mounting of MKD112D-027-GP0-BN influence concentricity, shaft runout, and repeatable alignment when swapping motors on precision fixtures?
The pilot diameter locates the stator concentrically to the machine housing, controlling coaxiality independent of bolt clearance. That geometry stabilizes runout and simplifies repeatable replacement without re-boring adapter plates.
Is the MKD112D-027-GP0-BN’s IP65 protection and ~45 kg mass adequate for washdown-adjacent packaging lines without compromising bearing preload or connector sealing on Side-B terminations?
IP65 withstands dust and water jets, not immersion or caustic washdown; use shields in alkaline foams. Mass and Side-B connectors suit rigid conduit routing; maintain gasket integrity and torque values to preserve enclosure rating.
What cabling and EMC practices are recommended for MKD112D-027-GP0-BN resolver and power leads to minimize conducted emissions and angle noise in high-dI/dt cabinets?
Rexroth supplies pre-qualified cable sets with braided shields grounded 360° at entry to segregate motor/power from encoder routing and maintains minimum bending radii. Its ferrites and cabinet bonding reduce common-mode voltages near drives.
Common Misspellings
MKD 112D-027-GP0-BN
MKD-112D-027-GP0-BN
MKD112D-O27-GPO-BN
MKD112D027GP0BN
MKD112D 027 GP0 BN
mkd112d-027-gp0-bn
Internal Product Review
Bosch Rexroth Indramat produces MKD112D-027-GP0-BN as a servo motor with a 112 frame (length D). It provides 48 Nm standstill torque and 100 Nm of peak at up to 3000 rpm. This motor uses RSF resolver feedback and a keyed, sealed DIN-6885 shaft to ensure precise commutation. It is suits machine tools, packaging lines and printing presses.
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