1.570.26.00.D.1

I.20.C I.25.B Types
  • I.20.C I.25.B Types
  • I.20.C I.25.B Types
  • I.20.C I.25.B Types
  • I.20.C I.25.B Types
  • I.20.C I.25.B Types
  • I.20.C I.25.B Types

1.570.26.00.D.1-I.20.C I.25.B Types

This series is a reliable single-row four-point contact ball slewing bearing with internal gear structure, developed for light to medium-duty rotary machinery applications. With mature manufacturing technology, compact structural design and stable mechanical properties, the internal gear slewing bearing provides excellent comprehensive load capacity and rotational stability, serving as a cost-effective and widely applicable core component for industrial automation, mobile engineering equipment and general rotary mechanical systems.


Typical Applications:

Construction machinery such as cranes and excavators

Aerial work platforms and man lifts

Solar tracking systems

Radar and antenna positioning systems

Materials handling 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

I.20.C I.25.B Types
Bearing Type :1.570.26.00.D.1
Brand :LYMC
Drawing No. :Drawing 4
Dimensions
Da [mm] :570
u [mm] :488
O [mm] :410
C [mm] :
Di [mm] :378
Ha [mm] :55
Hb [mm] :55
H [mm] :70
Fixing Holes
La [mm] :540
na :18
da [mm] :18
Li [mm] :436
ni :18
di [mm] :18
Gear Teeth
p [mm] :390
M :6
Z :65
Tooth Force
Fz nor [KN] :25,7
Fz max [KN] :35,9
Mass [KGS]
[KG] :54

Characteristics

✦ Internal gear on inner ring – Gear teeth cut on the inner ring for direct pinion engagement and compact drive integration.

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

✦ Compact cross-section – Optimized section height saves installation space while maintaining load capacity.

✦ 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.


Features

✦ Internal gear on inner ring – Gear teeth cut on the inner ring for direct pinion engagement.

✦ Four-point ball contact – Handles axial, radial, and moment loads in a single row.

✦ Compact section height – Optimized cross-section saves installation space.

✦ Induction-hardened raceways – Wear-resistant for extended service life.

✦ Double lip seals – Keeps contaminants out and retains lubricant.

✦ Pre-drilled mounting holes – Ready for quick bolted installation.


Further Reading