NR1.20.1904.400-1PPN

NR1.14 16 Series roller bearing
  • NR1.14 16 Series roller bearing
  • NR1.14 16 Series roller bearing
  • NR1.14 16 Series roller bearing
  • NR1.14 16 Series roller bearing

NR1.20.1904.400-1PPN-NR1.14 16 Series roller bearing

The single-row crossed roller slewing bearing series is a precision-engineered rotational component designed for applications requiring exceptional accuracy, high rigidity, and flexible drive integration. This gearless configuration offers a streamlined solution for equipment where the drive system is best implemented externally, allowing engineers to select the most suitable drive method without being constrained by integral gearing.



Application Areas:

Robotics and automation equipment

Precision rotary tables and indexing systems

Radar and antenna positioning systems

Medical imaging and radiotherapy equipment

High-accuracy solar tracking systems

Machine tools and coordinate measuring equipment



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

NR1.14 16 Series roller bearing
Type :NR1.20.1904.400-1PPN
Brand :LYMC
Drawing No. :Drawing 3
Dimensions
De[mm] :2012
Dce[mm] :
de[mm] :1906
di :1902
Dci[mm] :
Di[mm] :1796
Fixing Holes
Fe[mm] :1968
Ne :64
Fi[mm] :22
Ni :1840
Weight
[KGS] :248

Characteristics

✦ Roller orientation – Rollers are aligned with their longitudinal axes perpendicular to adjacent rollers, forming a compact orthogonal load path.

✦ Ring surface condition – Both rings are finished with smooth, uninterrupted cylindrical faces, free of any gear tooth features.

✦ Manufacturing route – Rings are produced via open-die forging followed by rough and finish turning, with no welded or bolted joints.

✦ Raceway geometry – Rolling paths are ground with a logarithmic profile to optimize contact stress distribution.

✦ Hardening method – Surface hardening is achieved through a single-shot induction process, producing a uniform hardened layer.

✦ Seal groove configuration – Grooves are machined with a trapezoidal cross-section to accommodate standard profile seals.


Features

✦ Accommodates angular deflection – The logarithmic raceway profile allows limited angular misalignment without edge loading.

✦ Eliminates gear wear concerns – Smooth ring surfaces remove the risk of gear tooth pitting or breakage.

✦ Allows oil-based lubrication – The open ring geometry permits oil bath or circulating oil systems.

✦ Supports high-frequency oscillation – Low inertia of the compact roller arrangement supports rapid start-stop cycles.

✦ Reduces lubricant contamination – The plain ring design prevents debris entrapment, keeping lubricant cleaner for longer.

✦ Simplifies integration with existing drives – Toothless rings directly accept chain, belt, or friction wheel drives.


Further Reading