E.1200.2.25.00.D.1

E.2.20 22 25.D Series Double row bearing
  • E.2.20 22 25.D Series Double row bearing
  • E.2.20 22 25.D Series Double row bearing

E.1200.2.25.00.D.1-E.2.20 22 25.D Series Double row bearing

This double row ball slewing bearing with external gear is constructed with dual ball raceways. It bears combined axial, radial loads and tilting moments with superior stability and high load capacity. Equipped with external teeth to realize rotary driving. Suitable for medium & heavy-duty rotating machinery including mobile cranes, engineering turntables and lifting equipment. Complete standard specifications and customized solutions supported.


Applications:

Tower cranes requiring medium to large working radii

Mobile cranes and truck-mounted cranes

Loading and unloading machinery

Construction equipment and excavators

Rotary tables and positioning systems


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.2.20 22 25.D Series Double row bearing
Bearing Type : E.1200.2.25.00.D.1
Brand :LYMC
Dimensions
Da [mm] :1200
O [mm] :1163
U [mm] :1079
Di [mm] :976
Ha [mm] :T7
Hb [mm] :88
H [mm] :98
Fixing Holes
La [mm] :1135
na :36
da [mm] :19
Li [mm] :1012
ni :36
di [mm] :19
Gear Teeth
P [mm] :1184
m :8
z :148
Tooth Force
Fz nor kN :32
Fz max kN :64
Weight
KG :210

Characteristics

✦ Dual-load-path construction – Two vertically staggered ball rows create separate load paths that distribute forces through independent contact angles.

✦ Peripheral gear teeth – Outer ring features integrally machined gear teeth with induction-hardened flanks for wear resistance.

✦ Symmetrical raceway profile – Upper and lower raceways share identical curvature radii, ensuring balanced load sharing between both ball rows.

✦ Split-seal housing – Each ball row is enclosed by its own seal carrier, allowing independent seal replacement without disassembling the other row.

✦ Flame-cut ring blanks – Rings are produced from flame-cut steel plates with normalized grain structure to minimize internal stress.

✦ Metric bolt circles – All mounting hole patterns follow ISO metric standards with optional UNC/UNF threads available upon request.


Features

✦ Minimized deflection under load – The independent dual-load-path design keeps structural deflection low even when loads shift during operation.

✦ Crowd load tolerance – The staggered ball arrangement handles uneven load distribution better than single-row types.

✦ Gear durability in dirty environments – Hardened tooth flanks and optimized root radius resist pitting and breakage.

✦ Rapid seal service – Each row's seal can be replaced individually, saving maintenance time.

✦ Flexible installation – Standardized metric bolt patterns fit most common machine interfaces.

✦ Thermal stability – Factory-set clearances prevent excessive play or binding at temperature extremes.


Further Reading