Dongguan Kesle Electronic Hardware Co., Ltd
| Payment Terms | T/T,Western Union,MoneyGram,PayPal |
| Delivery Time | 5-8 work days |
| Bearing Series | Excavator Bearings |
| Inner diameter | 184mm |
| Outer diameter | 226mm |
| Width | 21mm |
| Color | natural metal color |
| material | high-carbon chromium bearing steel |
| Brand Name | Kesle |
| Model Number | 184BA-2251 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | T/T,Western Union,MoneyGram,PayPal | Delivery Time | 5-8 work days |
| Bearing Series | Excavator Bearings | Inner diameter | 184mm |
| Outer diameter | 226mm | Width | 21mm |
| Color | natural metal color | material | high-carbon chromium bearing steel |
| Brand Name | Kesle | Model Number | 184BA-2251 |
| Place of Origin | CHINA | ||
| High Light | Precision Excavator Bearings ，Single Row Angular Contact Ball Bearing ，184BA-2251 Angular Contact Ball Bearing | ||
The 184BA-2251 angular contact ball bearing is specially designed for core components such as excavator travel systems and slewing motors, focusing on low-speed, high-impact, and combined load conditions. Through precise structural design and material optimization, it can bear both radial forces and axial impacts simultaneously, ensuring stable transmission of construction machinery in harsh environments such as mud, dust, and high-frequency vibration. It is the "impact-resistant core component" for power transmission of excavators.
| Parameter Category | Specific Indicators | Engineering Significance |
|---|---|---|
| Structure Type | Single-row angular contact ball bearing (with customizable contact angle α) | Adapts to combined loads (radial force + axial impact) during driving start-up and swing braking |
| Nominal Dimensions | Bore diameter 184mm * Outer diameter 226mm * Width 21mm | Matches the compact transmission space of excavators and is compatible with the installation tolerances of mainstream travel motors |
| Accuracy Class | Class P6 (default) / Class P5 (customizable) | Controls radial runout ≤ 5μm, ensuring synchronization of travel/swing actions and reducing mechanical interference |
| Material System | - Rings/balls: GCr15 bearing steel (vacuum quenching + superfinishing) - Cage: Copper alloy/reinforced nylon (optional) | The ring surface hardness reaches HRC58~62, increasing fatigue life by 30%; the cage can withstand temperatures ≤ 120°C, reducing friction loss |
| Load Capacity | Basic dynamic load rating Cr ≈ 180kN (typical value) | Supports continuous output torque of travel motors, meeting the operational requirements of 30-ton excavators |
| Limiting Speed | ≈ 3500r/min under grease lubrication (conventional) | Adapts to the medium and low-speed operation characteristics of excavators (travel speed ≤ 5km/h, slewing speed ≤ 10r/min) |
With an optional contact angle of 15°~25°, the axial load capacity is increased by 20%, which can accurately match the combined loads during excavator start-up (instantaneous axial thrust) and slewing brake operation (radial inertia force + axial impact force). This reduces premature failure of the bearing caused by "force system imbalance".
The ring raceway is processed by ultra-fine grinding technology, with a surface roughness of Ra ≤ 0.08μm, reducing friction and wear between balls and raceways. The ball roundness error is ≤ 0.5μm, achieving "zero-clearance" transmission, reducing abnormal noise and energy loss, and lowering vibration values by 15% under mining conditions.
An optional sealing design (protection class IP65) resists dust and muddy water intrusion through a double-lip seal structure, extending service life by 50% under mining conditions. The bearing steel is strengthened by carburizing, with a surface wear-resistant layer thickness of ≥ 0.2mm, which can resist scratches and wear from sand and gravel particles, improving wear resistance by 25%.
The 184BA-2251 angular contact ball bearing, with its combined load adaptation design (adjustable contact angle), precision manufacturing process (surface roughness Ra ≤ 0.08μm), and protection for harsh working conditions (IP65 sealing + carburizing strengthening), performs excellently in core components such as excavator travel, slewing, and wheel-side reduction. It can significantly improve equipment reliability, extend maintenance intervals, and bring direct economic benefits to customers in scenarios such as mining, ports, rail transit, and overseas infrastructure.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer,Exporter,Trading Company,Seller,Other
Total Annual:
10000000-20000000
Employee Number:
50~80
Ecer Certification：
Verified Supplier
Introduction:1.Covering an area of 80 mu (about 53,333 square meters), our factory has a 60-person team including 4 professional engineers, ensuring stable production and technical support. 2. Focusing on bearing production for 25 years, quality is our only guarantee3. Wafangdian Bearing Factory was... Introduction:1.Covering an area of 80 mu (about 53,333 square meters), our factory has a 60-person team including 4 professional engineers, ensuring stable production and technical support. 2. Focusing on bearing production for 25 years, quality is our only guarantee3. Wafangdian Bearing Factory was...
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