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013.25.450 Slewing Bearing

013.25.450 Internal Gear Crossed Roller Slewing Bearing | 357x543x70mm

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013.25.450 Technical Specifications

Bearing Type Single-row Four Point Angular Contact Ball Slewing Bearings
Gear Type Internal gear type
d (ID) 357mm
D (OD) 543mm
B (Width) 70mm
Dynamic Load (Cr)
Static Load (Cor) 1120kN
Mass 64Kg
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 507 mm
D2 393 mm
dn1 dn2 18
dm1 dm2 M16
L 32 mm
n 24 mm

Structure dimensions

n1 2 mm
D1 151 mm
d1 449 mm
H1 60 mm
h 10 mm

Gear

b 50 mm Tooth width
m 50 Module
da 324 mm Tooth tip diameter of internal gear ring
z 56 Number of teeth of internal gear

Product Description

013.25.450 is a single-row crossed roller slewing bearing with internal gear. It features 25mm diameter rollers and 450mm 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 inside the bearing ring. It measures 357mm inner diameter, 543mm outer diameter, and 70mm 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, Internal gear for compact drive, Compact cross-section

Applications

Rotary tables, Indexing equipment, Wind turbines, Medical equipment, Robotic turntables

Is 013.25.450 suitable for heavy attachments or manual rotary tables?

Yes. Unlike ball bearings, the crossed roller design of 013.25.450 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 013.25.450?

We provide OEM customization for 013.25.450, including gear type (external, internal, or gearless), mounting hole pattern, sealing arrangement, roller material, and surface protection according to your requirements.

Can 013.25.450 replace other brands' crossed roller bearings?

Yes. 013.25.450 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 013.25.450?

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 013.25.450?

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

Image for reference only.

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