012.25.500 Crossed Roller Slewing Bearing for Crane & Heavy Equipment

Name: 012.25.500 Spherical Roller Bearing
Brand: WJY
SKU: 012.25.500
Availability: InStock

012.25.500 Technical Specifications

Bearing Type	Single-row Four Point Angular Contact Ball Slewing Bearings
Gear Type	External gear type
d (ID)	398mm
D (OD)	602mm
B (Width)	80mm
Dynamic Load (Cr)
Static Load (Cor)	1290kN
Mass	75.8Kg
Material	GCr15 bearing steel, raceway hardened and precision ground
Cage	Segmented brass or steel cage (optional per working condition)
Clearance	C3 standard clearance (C4 optional for high vibration)
Precision	P0 standard precision

Bolt Hole Diameter

D1	566 mm
D2	434 mm
dn1 dn2	18
dm1 dm2	M16
L	32 mm
n	20 mm

Structure dimensions

n1	4 mm
D1	501 mm
d1	499 mm
H1	70 mm
h	10 mm

Gear

b	60 mm	Tooth width
m	60	Module
da	628.8 mm	Tooth tip diameter of external gear ring
z	102	Number of teeth of external gear

Product Description

012.25.500 is a single-row crossed roller slewing bearing with external gear. It features 25mm diameter rollers and 500mm raceway center circle diameter. The crossed roller design provides higher rigidity and moment load capacity compared to ball bearings. This model is driven by a pinion meshing with the external teeth. It measures 398mm inner diameter, 602mm outer diameter, and 80mm height. With stable rotation, high load capacity, and easy maintenance, it is widely used in cranes, rotary platforms, and heavy industrial equipment.

Key Features

Single-row crossed roller design, Higher rigidity than ball bearings, P0 precision standard, C3 internal clearance, Segmented brass or steel cage, External gear for pinion drive, Compact cross-section

Applications

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

Is 012.25.500 suitable for heavy attachments or manual rotary tables?

Yes. Unlike ball bearings, the crossed roller design of 012.25.500 provides higher rigidity under impact loads and moment forces. It is widely used in excavator attachments, crane boom turntables, and heavy manual positioning tables where smooth rotation and durability matter more than micron-level precision.

What customization options are available for 012.25.500?

We provide OEM customization for 012.25.500, including gear type (external, internal, or gearless), mounting hole pattern, sealing arrangement, roller material, and surface protection according to your requirements.

Can 012.25.500 replace other brands' crossed roller bearings?

Yes. 012.25.500 can be manufactured as an interchangeable replacement for IKO, THK, SKF, Rothe Erde, and other crossed roller slewing bearings. Please share original drawing or part number for cross-reference.

How can I get a quotation for 012.25.500?

Please provide model number, quantity, gear type required (external/internal/none), and application details. We will respond with a factory-direct quotation within 24 hours.

What is the lead time for 012.25.500?

Standard sizes: 7-15 days. Custom orders (special gear, mounting holes, materials): 20-30 days depending on complexity and quantity.

Are you a trading company or a factory?

We are a professional bearing manufacturer in Wafangdian China, with stable quality and factory direct price.

Delivery & Service

Delivery Time

In-stock items: 3–5 working days; Bulk orders: 7–15 working days.

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

Photo
Drawing

Single-row Four Point Angular Contact Ball Slewing Bearing

Image for reference only.

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012.25.500 Slewing Bearing