Metric Trapezoidal (TR DIN 103) U-Type Laydown (Heavy Duty) Threading Inserts
Ideal for: Heavy Linear Actuators, Large Jacks, Industrial Motion Control.
- Product Series: Heavy-Duty Metric Trapezoidal (TR) U-Type laydown threading inserts.
- Coarse Pitch Specialist: Engineered for large pitches from 6.0mm up to massive 12.0mm.
- Stability: Large U-Type format (1/2″ to 3/4″ I.C.) withstands extreme cutting forces that standard 16er threading inserts cannot handle.
- Precision Standard: Full Profile carbide threading inserts compliant with DIN 103 (30°).
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Versatility: Premium threading inserts for lathe applications, stocked in both Right-Hand and left hand thread insert (L) configurations.
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Product Overview
Master heavy-duty power transmission applications with our Metric TR U-Type laydown threading inserts. While standard tools are suitable for fine pitches, these robust U-Type inserts are designed specifically for the aggressive material removal required to cut coarse Trapezoidal threads (DIN 103).
Featuring a large I.C. (Inner Circle), these carbide threading inserts provide the structural mass necessary to machine pitches up to 12mm without vibration. This makes them the essential upgrade from the standard 16er threading insert when tackling large-diameter spindles and lead screws.
Key Features & Benefits
- Extreme Load Handling: The expanded surface area of the U-Type design dissipates heat and stress, ensuring tool life in heavy steel cutting.
- Massive Pitch Range: Capable of machining 12.0mm pitches, far exceeding the 3.0mm limit of a typical 16er threading insert.
- Precision Form: Full Profile geometry cuts the groove and tops the crest, delivering a precise 30° angle for smooth mechanical movement.
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Directional Options: We offer a complete inventory including left hand thread insert models (e.g., 33U EL 12 TR) for bi-directional screw manufacturing.
TR U Insert Model
| I.C. | Pitch (mm) | External Model (R/L) | Internal Model (R/L) | L | X | Y |
| 1/2″ U | 6 | 22U ER/L6TR | 22U IR/L6TR | 22 | 2 | 11 |
| 1/2″ U | 7 | 22U ER/L7TR | 22U IR/L7TR | 22 | 2.3 | 11 |
| 5/8″ U | 8 | 27U ER/L8TR | 27U IR/L8TR | 27 | 2.5 | 13.7 |
| 5/8″ U | 9 | 27U ER/L9TR | 27U IR/L9TR | 27 | 3 | 13.7 |
| 5/8″ U | 10 | 27U ER/L10TR | 27U IR/L10TR | 27 | 3.2 | 13.7 |
| 3/4″ U | 12 | 33U ER/L12TR | 33U IR/L12TR | 33 | 3.9 | 16.9 |
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