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Doosan DX230 172447-57600 Slewing ring bearings for crawler excavator parts
Product Details:
| Place of Origin: | China |
| Brand Name: | Excavator Slewing Ring |
| Model Number: | DX230 |
Payment & Shipping Terms:
| Minimum Order Quantity: | 1 PCS |
|---|---|
| Price: | Negotiatied price |
| Packaging Details: | Standard shipping package |
| Delivery Time: | Within 2 working days |
| Payment Terms: | T/T,paypal,trade assurance |
| Supply Ability: | 1000 PCS/month |
|
Detail Information |
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| Model: | DX230 | Part Number: | 172447-57600 |
|---|---|---|---|
| Part Name: | Slewing Bearing | Application: | Crawler Excavator |
| Brand: | Doosan | Quality: | New |
Product Description
Doosan DX230 172447-57600 Slewing ring bearings for crawler excavator parts
List of spare parts
| # | Part No | Part Name | Qty. |
|---|---|---|---|
| 9184497 | SWING; CIRCLE | 1 | |
| 00 | . RACE; OUTER | 1 | |
| 01 | . RACE; INNER | 1 | |
| 02 | 4127708 | . SUPPORT | 99 |
| 03 | J75481 | . FITTING; GREASE | 2 |
| 04 | 4289757 | . SEAL | 1 |
| 04 | 4634010 | . SEAL | 1 |
| 05 | 4315493 | . SEAL | 1 |
| 05 | 4634010 | . SEAL | 1 |
| 06 | 4428919 | . BALL | 99 |
There are two main types:
(1) Ball-Type Swing Bearings
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Uses steel balls as rolling elements.
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Best for small to medium excavators (lower load capacity).
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Advantages: Smoother rotation, lower cost.
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Disadvantages: Less durable under extreme loads.
(2) Roller-Type Swing Bearings
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Uses cylindrical or tapered rollers.
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Designed for large excavators and heavy-duty applications.
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Advantages: Higher load capacity, longer lifespan.
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Disadvantages: Slightly less smooth rotation.
Which One Is Better?
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Small excavators (1-20 tons): Usually ball-type.
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Large excavators (20+ tons): Typically roller-type.
Common Materials & Manufacturing Process
Materials Used:
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Rings: High-carbon chromium steel (e.g., 42CrMo, 50Mn).
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Rolling Elements: Hardened alloy steel.
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Gear Teeth: Induction-hardened for wear resistance.
Manufacturing Steps:
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Forging – Shaping steel into rings.
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Machining – Precision cutting of raceways and gear teeth.
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Heat Treatment – Hardening for durability.
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Grinding & Assembly – Smoothing surfaces and adding seals.
