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012.30.560 Slewing Bearing

012.30.560 External Gear Four-Point-Contact Ball Slewing Bearing | 458x662x80mm

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012.30.560 Technical Specifications

Bearing Type Single-row Four Point Contact Ball Slewing Bearings
Gear Type External gear type
d (ID) 458mm
D (OD) 662mm
B (Width) 80mm
Dynamic Load (Cr)
Static Load (Cor) 1440kN
Mass 94Kg
Material GCr15 steel balls, 50Mn/42CrMo rings, raceway hardened and precision ground
Cage Segmented brass or steel spacer blocks (optional per working condition)
Clearance Standard axial-radial play, custom play available on request
Precision P0 standard precision

Bolt Hole Diameter

D1 626 mm
D2 494 mm
dn1 dn2 18
dm1 dm2 M16
L 32 mm
n 20 mm

Structure dimensions

n1 4 mm
D1 561 mm
d1 558 mm
H1 70 mm
h 10 mm

Gear

b 60 mm Tooth width
m 60 Module
da 688.8 mm Tooth tip diameter of external gear ring
z 112 Number of teeth of external gear

Product Description

012.30.560 is a single-row four-point-contact ball slewing bearing with an external gear. It features a 560mm raceway center circle diameter. Its gothic-arch four-point-contact raceway enables the bearing to accommodate bidirectional axial loads, radial loads and tilting moments within a single bearing structure. This model is driven by a pinion meshing with the external teeth. The bearing measures 458mm in bore diameter, 662mm in outside diameter and 80mm in overall height. With stable rotation, comprehensive load capacity and easy maintenance, it is widely used in cranes, rotary platforms and heavy industrial equipment.

Key Features

Single-row four-point-contact ball design, Handles bidirectional axial, radial and tilting-moment loads, P0 precision standard, Segmented brass or steel spacer blocks, External gear for pinion drive, Compact cross-section

Applications

Tower cranes, Mobile cranes, Excavators, Aerial work platforms, Port machinery

What is four-point contact in 012.30.560 slewing bearing?

Four-point contact means that each steel ball can contact the inner and outer raceways at four points through the gothic-arch raceway geometry. This design allows a single bearing to accommodate bidirectional axial loads, radial loads and tilting moments.

Can 012.30.560 be customized or supplied as an OEM replacement?

Yes. We can manufacture 012.30.560 according to OEM drawings or technical requirements, including gear configuration, mounting hole pattern, sealing arrangement, material, heat treatment and other specifications. OEM replacement orders are also supported.

What is the minimum order quantity for 012.30.560?

The minimum order quantity is 1 piece. Larger quantities are available for project and replacement requirements.

What is the lead time for 012.30.560?

The typical lead time is 15–25 days, depending on order quantity and production requirements.

Service

Shipping

Ocean Freight / Land Transport

Warranty

12-month warranty, extendable to 18 months.

Loading Port

Dalian Port or other nominated port

Packing

Export packing: tube + box + carton + wooden case

Order

Mixed models & small orders welcome

Image for reference only.

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