NM 194 Flexibel käftkoppling

NM 194 is a large entry in the supplied table. Reference values are 112.0 Kg*m normal torque, 200 Kg*m maximum torque, 3,500 rpm maximum speed and a 32-85 mm bore range. The same table lists boss diameter 140 mm, outside diameter 198 mm, distance L 100 mm and approximate weight 26.30 kg. Note that the outside diameter does not equal the model number, so the drawing must control envelope checks.

• Outside diameter is 198 mm, not the model code
• Listed bore span 32-85 mm
• Reference L 100 mm
• Use safe handling for the large assembly
• Measure unidentified replacements carefully

Large-Frame Cross-Check

For NM 194, the table deserves a dimensional cross-check because the listed outside diameter is 198 mm. The project drawing, not the model code, should control acceptance.

Construction Reference

The source illustration identifies forged iron at the hub and shows the flexible jaw element between the two halves. For NM 194, the 198 mm outside-diameter reference is a useful reminder not to infer physical dimensions from naming conventions. Element material remains unspecified in the supplied technical data; include heat, oil, chemical and duty conditions if the project requires a defined compound.

Dimension Verification

A replacement review for NM 194 should verify every major dimension against the existing installation. Compare bore and key interfaces, then check the 198 mm outside diameter, 100 mm distance L and specified hub spacing. Separately review normal torque, transient torque and operating speed. If the old coupling is unidentified, measure the machine interface and send photos instead of assuming that a similar red jaw coupling is interchangeable.

Safe Handling

Handling planning is required for the approximately 26.30 kg reference weight. Use safe lifting/support methods appropriate to the actual part and protect shaft fits during installation. Align the equipment independently, set the hubs to the approved axial positions and verify the center spacing. After commissioning, inspect for migration on the shaft, unusual element compression, guard contact or rising vibration.

Replacement Duty

NM 194 may enter consideration for larger industrial machinery when shaft sizes and duty exceed the smaller NM frames. The correct decision still depends on the actual driver, driven load, start condition and environment. If the machine has repeated high-inertia starts or occasional jams, describe them; those events can matter more than steady-state power for coupling review.

Drawing Control

Custom bores up to the reference range should be treated as drawing-controlled work. Include keyway geometry, fits and any shaft shoulder. Marking, surface finish and packing can be specified, but structural changes to hub dimensions require explicit approval because the supplied outside diameter and length are part of the reference envelope.

Packing And Quantity

For NM 194 enquiries, include destination and packing constraints if they affect handling. Samples or low quantities can be evaluated, but large-component setup, machining and inspection remain real cost drivers. Mixed models can be reviewed as a combined commercial package when useful.

Frequently Asked Questions