E.505.20.00.B

E.20.B E.25.B 486-1200mm Series slewing bearing
  • E.20.B E.25.B 486-1200mm Series slewing bearing
  • E.20.B E.25.B 486-1200mm Series slewing bearing
  • E.20.B E.25.B 486-1200mm Series slewing bearing

E.505.20.00.B-E.20.B E.25.B 486-1200mm Series slewing bearing

E series is a single-row, four-point contact ball slewing bearing featuring an external gear on the outer ring. This series is engineered for applications requiring efficient power transmission, compact dimensions, and reliable performance in light to medium-duty rotating systems.


Typical Applications:

Construction machinery such as cranes and excavators

Aerial work platforms and man lifts

Solar tracking 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

E.20.B E.25.B 486-1200mm Series slewing bearing
Type :E.505.20.00.B
Brand :LYMC
Drawing No. :Drawing 1
Size Information
Da(mm) :503.3
U(mm) :415.5
U+IT8(mm) :
C(mm) :412.5
di+IT8(mm) :
Di :342
Holes Information
La(mm) :455
na :20
Li(mm) :368
ni :24
Gear Data
P(mm) :495
M :5
Z :99
Loading
Fz nom kN :10.8
Fz max kN :21.6
Weight KG :31

Characteristics

✦ Four-point ball contact – Single-row balls contact the raceway at four points, handling axial, radial, and tilting moment loads in one compact unit.

✦ External gear on outer ring – Gear teeth cut directly on the outer ring for direct pinion engagement and rotary transmission.

✦ Lightweight construction – Optimized cross-section design reduces overall weight without compromising load capacity.

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

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

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


Features

✦ Four-point ball contact – Handles axial, radial, and moment loads together.

✦ External gear on outer ring – Direct pinion engagement for rotary drive.

✦ Lightweight design – Optimized section for reduced weight.

✦ Hardened raceways – Wear-resistant for long service life.

✦ Double lip seals – Keeps dirt out and lubricant in.

✦ Pre-drilled holes – Ready for bolted installation.

✦ Broad applicability – Suited for light to medium-duty rotary equipment.


Further Reading