NB1.20.0414.200-1PPN

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

NB1.20.0414.200-1PPN-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


High load-carrying capacity
Resistance to high and low temperatures
Noise-free operation
Strictly controlled tolerances and appropriate internal clearance
Long service life and low maintenance requirements
Prevention of unexpected downtime (avoiding bearing fracture, seizure, and safety incidents caused by such failures, with anti-tilting capability)

Dimension and Parameters

One row ball bearing untoothed--NB1.25S-NB1.25P-NB1.25R
Type :NB1.20.0414.200-1PPN
Brand :LYMC
Drawing No. :Drawing 2
Dimensions
De[mm] :486
Dce[mm] :
de[mm] :415,5
di :412,5
Dci[mm] :
Di[mm] :342
Fixing Holes
Fe[mm] :460
Ne :24
Fi[mm] :368
Ni :24
Weight
[KGS] :29

Characteristics

✦ Toothless ring design – Both inner and outer rings have plain surfaces without gear teeth.

✦ Multi-load capability – Axial, radial, and tilting moment loads are all accommodated by the single-row four-point contact geometry.

✦ Forged steel structure – Rings are produced from forged blanks, ensuring a dense grain structure and high mechanical strength.

✦ Hardened rolling paths – Raceways undergo induction hardening to resist wear and rolling contact fatigue.

✦ Effective sealing system – NBR double-lip seals are installed on both sides to block external contaminants.

✦ Simplified mounting – Equally spaced bolt holes on each ring allow direct bolted attachment to adjacent structures.


Features

✦ No gear teeth – Smooth inner and outer rings without teeth for custom drive integration.

✦ Four-point ball contact – Single-row design handles axial, radial, and tilting moment loads simultaneously.

✦ Forged ring construction – Rings are forged and machined for high strength and rigidity.

✦ Induction-hardened raceways – Rolling surfaces hardened for wear resistance and extended service life.

✦ Double lip seals – Fitted with NBR seals on both sides to keep contaminants out and retain lubricant.

✦ Pre-drilled mounting holes – Both rings feature equispaced bolt holes for quick and secure installation.


Further Reading