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AN 26 High-Precision Adapter Sleeve Lock Nut (M130x2) for Industrial Bearing Systems

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Product Details

Brand: SKF
AN 26 High-Precision Adapter Sleeve Lock Nut (M130x2) for Industrial Bearing Systems

The AN 26 Adapter Sleeve Nut is a critical component engineered for the precise axial location and retention of bearings mounted on tapered shafts or adapter sleeves. Manufactured to stringent standards typically associated with leading brands like SKF, this lock nut features a specialized metric thread configuration of M 130x2. Its robust design ensures maximum grip and resistance against loosening caused by high vibrational loads and reversing operational stresses. Utilized predominantly in heavy machinery, conveyor systems, and industrial gearboxes, the AN 26 provides the necessary clamping force to maintain optimal bearing setting, prevent creep, and ensure the correct internal clearance is achieved and retained throughout the operational lifespan. Selecting a premium AN 26 nut guarantees longevity and safety within industrial applications where premature failure is costly. This component is designed for fast and secure mounting and dismounting using hook spanners, streamlining maintenance procedures and reducing downtime. When coupled with the appropriate MB 26 lock washer (or similar security clip), the system forms an extremely reliable locking mechanism that prevents unintended loosening, even under extreme shock loads. Its high-strength steel construction and precise threading minimize friction during tightening, allowing maintenance staff to achieve exact torque specifications necessary for securing large rotating assemblies with confidence.

Key Features

  • Provides precise axial retention for bearings mounted on adapter sleeves.
  • High-strength steel construction ensures durability and resistance to deformation under load.
  • Facilitates easy and rapid mounting/dismounting using standard hook spanners.
  • Essential for maintaining correct internal bearing clearance and minimizing shaft creep.
  • Optimized thread profile (M 130x2) for secure locking and reduced vibrational loosening.
  • Compatible with standard MB 26 lock washers for enhanced security against rotation.

Technical Specifications

nut_typeAdapter Sleeve Lock Nut
d1_thread_diameterM 130x2
d_outer_diameter180 mm
B_nut_height20 mm
keyway_slots4
wrench_typeHook Spanner (HN 26)
associated_lock_washerMB 26
materialHigh-Strength Carbon Steel
mass_approx1.2 kg