3127443 XCMG GR2605 motor grader roller assembly

3127443 XCMG GR2605 motor grader roller assembly

The 3127443 roller set is a core rolling component in the bearings and slewing mechanisms of construction machinery. Composed of multiple precision rollers, it primarily bears heavy loads, radial and axial combined loads, reduces frictional resistance, and ensures smooth operation of rotating parts. It is commonly found in heavy-duty components such as wheel rims, drive axles, and slewing bearings.

Technical Parameters

Model: 3127443
Type: Cylindrical roller / Tapered roller set
Material: High carbon chromium bearing steel, heat-treated and hardened
Precision: Good dimensional consistency, smooth rotation
Hardness: High wear resistance, impact resistance, not prone to pitting
Applicable Temperature: -30℃～120℃
Lubrication Method: Gear oil or grease lubrication

Suitable Scenarios

Suitable for wheel rim reducers, drive axles, slewing bearings, heavy-duty bearing housings, etc., in construction machinery such as loaders, graders, and road rollers; it works with raceways and cages to support heavy-duty rotating parts and withstand large loads and impact loads.

Common Faults and Troubleshooting

Abnormal noise and excessive vibration: Roller wear, pitting, or cage deformation. Replace the 3127443 roller assembly and check the raceway condition.

Excessive clearance and noticeable wobble: Rollers are worn thin or fatigued and loose. Replace the entire roller assembly.

Seizing and severe overheating: Insufficient oil, impurities entering, or roller jamming. Clean the cavity, replace the roller assembly, and relubricate.

Premature spalling and breakage: Overload, impact, or poor lubrication. Replace the roller assembly and improve sealing and lubrication conditions.

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1 70812 Bolt M12×1.5×45
2 3239223 Locking Plate
3 3233683 Locking Disc
4 3267253 Sprocket
5 71624 Bearing
6 3114333 Washer
7 71355 Seal
8 3349543 Support Body
9 70573 Bearing
10 70386 Bolt M18×1.5×50
11 3349583 Output Shaft
12 71860 Pins
13 71860 Pin
14 3349513 Gear Ring
15 3349553 Planetary Shaft
16 3127443 Flat Washer
17 3127443 Roller Assembly 18 3132833 Spacer
19 3132823 Planetary Gear
20 3349573 Planetary Carrier
22 70201 Retaining Ring

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