30305 Tapered Roller Bearing IKO Roller Bearing For Excavators Wind Power / Construction Machinery
Price:
Negotiable
MOQ:
1
Delivery Time:
5-8 work days
Brand:
Kesle
Product Description
30305 Tapered Roller Bearing IKO Roller Bearing For Excavators Wind Power / Construction Machinery
DOYE IKO 30305 Tapered Roller Bearings For Excavators Wind Power And Construction Machinery
Product Overview
The 30305 tapered roller bearing is a benchmark product among high-end bearings, specially designed for high-load and high-speed scenarios. It features excellent reliability and cost-effectiveness. As a classic model of single-row tapered roller bearings, its split inner and outer ring structure facilitates installation and debugging, making it widely used in automotive, wind power, construction machinery and other fields.
Core Parameters
| Parameter | Value |
|---|---|
| Inner diameter | 25 mm |
| Outer diameter | 62 mm |
| Total width | 18.25 mm |
| Contact angle | 11.31° |
| Radial load capacity | 55.3 kN |
| Axial load capacity | 43 kN |
| Limiting speed | 12,000 r/min |
Material Specifications: Vacuum-degassed bearing steel with hardness of HRC 60-64 (oxygen content ≤ 8ppm), providing 20% longer service life than traditional bearings.
Precision Classes Available: P0 (general grade) and P6 (precision grade). For P6 class, raceway roundness error ≤ 1.5 μm with 30% reduced vibration value.
Core Technologies and Manufacturing Processes
Material Innovation
Using vacuum-degassed bearing steel (52100 chromium steel). The microstructure is optimized through quenching + tempering processes, with wear resistance 18% higher than that of ordinary electroslag steel. Suitable for harsh environments including high temperatures (-30°C to 110°C) and high dust levels.
Precision Design
- Split structure: Inner and outer rings can be installed separately, supporting preload adjustment for high-precision transmission systems
- Stamped steel cage: Optimizes roller guidance path, reducing friction loss by 15% and improving stability during high-speed operation
Construction Machinery Applications
- Excavator travel mechanism: Widely used in excavators, bearing axial loads of 43 kN with failure rate less than 0.8%
- Mining machinery: Replaces FAG bearings in gold mine crushers, reducing costs by 30% while increasing wear resistance by 18%
Tapered roller bearings are widely used in industries such as automotive, rolling mills, mining, metallurgy, and plastic machinery.
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Company
Dongguan Kesle Electronic Hardware Co., Ltd
Location
Guangdong Dongguan Kesile Electronic & Hardware Products Factory
Contact Person
orlenda li