One row ball bearing untoothed--NB1.25S-NB1.25P-NB1.25R

One row ball bearing untoothed--NB1.25S-NB1.25P-NB1.25R

One row ball bearing untoothed--NB1.25S-NB1.25P-NB1.25R

The EB1 series represents a versatile toothless four-point contact ball slewing bearing solution, purposely built for light-to-medium duty rotary machinery that requires pure rotational movement without integrated gear transmission. Unlike conventional geared slewing rings that rely on built-in teeth for power input, the EB1 gearless design prioritizes installation flexibility, operational smoothness and universal adaptability, making it a go-to component for custom industrial rotary systems and general mechanical motion applications.


Typical Applications:

Rotary tables and welding positioners

Process automation and packaging equipment

Cranes and crane trucks

Mixers, reeling machines, and bottling or capping machines

Wind turbines and aerial platforms


  • One row ball bearing untoothed--NB1.25S-NB1.25P-NB1.25R
  • One row ball bearing untoothed--NB1.25S-NB1.25P-NB1.25R
  • One row ball bearing untoothed--NB1.25S-NB1.25P-NB1.25R
  • One row ball bearing untoothed--NB1.25S-NB1.25P-NB1.25R
  • One row ball bearing untoothed--NB1.25S-NB1.25P-NB1.25R
  • One row ball bearing untoothed--NB1.25S-NB1.25P-NB1.25R
Inquiry TypeBrandDrawing No.DimensionsFixing HolesWeight
De[mm]Dce[mm]de[mm]diDci[mm]Di[mm]Fe[mm]NeFi[mm]Ni[KGS]

This type designed with user-friendly installation features, all standard EB1 series bearings come with pre-drilled standard mounting holes for quick positioning and effortless assembly. The lightweight, compact sectional structure features low starting torque and ultra-smooth rotation, perfectly matching the lightweight, energy-efficient design demands of modern industrial machinery. In conventional medium-load working conditions, the EB1 four-point contact ball structure outperforms traditional roller bearings in operating flexibility and noise control with excellent cost-performance.

EB1 series toothless four-point contact ball slewing bearings are widely deployed in solar tracking equipment, precision rotary workstations, light engineering machinery, aerial work platforms, port auxiliary equipment and industrial automation rotary mechanisms. Every finished bearing undergoes rigorous factory quality testing, covering dimensional tolerance inspection, hardness verification and dynamic load testing to ensure reliable field performance. Custom internal clearance adjustment, personalized machining and professional anti-corrosion treatments are available to meet unique application and environmental requirements.


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