The KM 19/N bearing lock nut provides a dependable and efficient method of securing bearings and shafts in industrial systems. With its robust steel design, DIN 981 precision, and compatibility with standard locking washers, it ensures long-lasting performance and simplified maintenance. Ideal for demanding industrial and mechanical applications where reliability is essential.
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The KM 19/N bearing lock nut is a precision-engineered shaft retaining nut designed for securely locating and locking bearings, adapter sleeves, and other rotating components onto a shaft. Commonly used in industrial drives, gearboxes, electric motors, agricultural machinery, and bearing housings, this lock nut ensures stable axial positioning under dynamic load conditions.
Manufactured according to DIN 981, the KM 19/N model features radial slots for easy tightening with a hook or impact spanner, allowing safe and precise mounting even in high-vibration environments. When combined with a MB series lock washer, it provides an effective locking system that prevents loosening during operation.
Reliable axial locking - ideal for securing ball bearings, spherical roller bearings, and tapered roller bearings on shafts or adapter sleeves.
DIN 981 compliant thread design - ensures high dimensional accuracy and interchangeability.
Multiple locking options - compatible with MB tab washers or modern self-locking mechanisms.
Durable steel construction - manufactured from high-grade hardened steel for long service life and resistance to torque stress.
Easy installation and removal - radial slots allow efficient tightening using a hook wrench or hydraulic tools.
Universal use - suitable for maintenance operations, bearing units, and heavy-duty mechanical assemblies.
| Parameter | Value |
|---|---|
| Product Type | Bearing Lock Nut |
| Model | KM 19/N |
| Standard | DIN 981 |
| Thread Size | M95x2 (example for KM 19) |
| Outer Diameter | ≈ 125 mm |
| Width | ≈ 17 mm |
| Material | Hardened carbon steel |
| Locking Method | With MB lock washer or equivalent |
| Applications | Bearings, shafts, housings, mechanical drives |
1. What is the purpose of a KM 19/N lock nut?
It axially secures a bearing or sleeve on a shaft, preventing unwanted movement and maintaining alignment under load.
2. Does the KM 19/N require a lock washer?
Yes, it is typically paired with an MB-series lock washer, which prevents rotation and loosening.
3. Can it be used with adapter or withdrawal sleeves?
Absolutely - the KM 19/N is compatible with both adapter and withdrawal sleeves in tapered bore bearing assemblies.
4. What tools are used for installation?
A hook spanner or impact wrench is recommended for accurate tightening and proper torque control.
5. What industries use KM series lock nuts?
They are widely applied in power transmission, machine tools, industrial motors, conveyors, and bearing units.