Product Video
Products Description
|
Brand |
Product Name |
Model |
Weight/pc |
Part Number |
|
Komatsu
|
Front Idler
|
D375A |
445Kg |
195-30-33111
|
|
Product Name |
Front Idler
|
|
Part Number |
195-30-33111
|
|
Origin |
Japan
|
|
Brand Name |
STONE |
|
Model |
D375A |
|
Price |
Negotiable |
|
Packing Details |
Standard Export Packing |
|
Delivery Time |
0-30 Days |
|
Payment Term |
L/C, T/T |
|
Price Term |
FOB, CIF, CFR |
|
Supply Capacity |
50,000 PCS/Month |
|
Minimum Order Quantity |
1 PC |
|
Material |
High Quality Steel |
|
Technology |
Precision Machining |
|
Surface |
Treatment Anti-Corrosion Coating |
|
Hardness |
HRC 48-52 |
|
Quality |
Original Factory Standard |
|
After-Sales Service |
Full Support, Online Service |
|
Color |
Customizable |
|
Application |
Bulldozer
|
|
Customizable |
including customized materials, surface treatment and specifications |
We supply all models of komatsu Idler. If you need to know other models, please contact us.

Komatsu Dozers-D375A-8
Surface mining dozers
Specifications:
Horsepower (kW):455 kW @ 1 800 rpm
Operating weight (kg):74 090
Blade capacity (m3):18.5 - 22.0
Track
Rollers and idlers:Lubricated track rollers
Number of track rollers (each side):8
Number of shoes (each side):41
Number of carrier rollers (each side):2
Product structure design
Komatsu D375A Idler has been comprehensively optimized and upgraded in terms of structural design.
Structural design
Idler has been comprehensively optimized in terms of structural design. Combined with edge chamfering, it can evenly distribute the track contact pressure and significantly reduce track shoe wear.
Rib design
Idler uses reinforced ribs and local thickening design inside to improve structural rigidity, evenly distribute loads and prevent guide wheels from deforming under heavy loads.
Low stress concentration design
Komatsu Idler's multi-hole load-balancing design disperses the force on the bolt fixing points, preventing single-point fatigue cracking and maintaining structural integrity under extreme impact.
Modular construction
Idler uses a split hub design, which allows the wear parts to be replaced individually without scrapping the entire idler. Standardized interfaces are used to be compatible with different batches of equipment, reducing the pressure of spare parts inventory.
Balance optimization
The Idler provided by STONE adopts a symmetrical structural design to offset the vibration caused by eccentric load. The shock-absorbing bearing seat absorbs the impact energy transmitted by the track to protect the drive system.
Anti-derailment design
Ensure stable operation of the track Idler has raised the wheel flange to limit the lateral displacement of the track and adapt to rugged terrain. Idler's guide boss assists in positioning and precisely matches the track shoe groove to prevent lateral slippage.
Work scenario case
All scenarios require frequent steering, ramp driving or track tensioning adjustments,
which directly rely on the durability and guidance accuracy of the Idler.

Iron ore crushing operations
At an iron ore mine in Hebei, the Komatsu Idler we provided can be used for 6,000 hours before it needs to be replaced.
The sealing performance is also better, and the bearing can be used for 1,500 hours before it needs to be replaced, which is nearly twice as long as before.
Copper mine slurry environment operation
During the rainy season construction at Jiangxi Copper Mine, 375A Idler special rubber seals can effectively prevent corrosion from acidic muddy water.
The unique spiral groove design reduces mud accumulation by 70%. Compared with other by-products, our durability is 40% higher.


Heavy load operation in coal mines
In the heavy-load transportation of coal mines in Inner Mongolia, the reinforced structure of Idler can withstand the rolling of 80-ton heavy trucks 200 times a day. Even at a low temperature of minus 25 degrees, it can start normally and is easy to maintain.
Steep slope continuous operation in gold mines
In a steep slope operation at a mine in Shandong, our anti-derailment design created a record of 300 hours of continuous operation without failure. The operation is very stable, and the cost of transporting 10,000 tons of ore can save 3,800 yuan compared with the original factory.

Easy maintenance
Compatibility and adaptability
Provides greater adaptability and flexibility to adapt to diverse construction scenarios.
Multiple types of track shoes
Komatsu Idler can be matched with a variety of track shoes, such as wetland tracks (wide anti-sinking design) and mining tracks (high-strength wear-resistant type), to ensure stable operation under different ground conditions.
Works seamlessly with the original factory tensioner
Precisely docked with the original tensioning system of the D375A bulldozer, no additional adjustment is required, ensuring uniform track tension and extending service life.
Supported third-party alternatives
Compatible with accessories from internationally renowned brands such as Berco, users can flexibly choose original or cost-effective alternatives according to their needs to reduce procurement costs.
Wide range of working conditions applicability:
Our Idler is optimized to meet the needs of different operating environments such as mining (high impact), earthwork (lots of gravel), wetlands (anti-corrosion), etc., ensuring reliability and durability.
Maintenance and repair convenience
The D375A guide wheel not only ensures durability, but also significantly improves maintenance efficiency and economy.
Detachable design
Komatsu Idler adopts a split structure design, which can be disassembled and replaced individually after wear and tear, without the need to scrap the entire unit, significantly reducing the cost of use.
Standardized bolt interface
All fasteners of D375A Idler are universal standard bolts (such as ISO or SAE specifications), which are compatible with conventional tools for disassembly and simplify the installation process.
Maintenance-free bearings
Some models of Idler are equipped with sealed long-life bearings, which are pre-filled with high-performance grease and have a design life synchronized with the wheel body.
Easy lubrication design
The Komatsu D375A Idler grease nozzle is exposed on the side of the wheel body and is tilted at 45° to avoid clogging with mud. It can be directly connected to a grease gun for quick filling.
Wear indicators
The surface of the Komatsu Idler rim is laser engraved with scale lines or groove marks, which can determine the degree of wear through visual comparison, accurately indicate replacement points, and avoid excessive wear.
Modular replacement design
The Komatsu D375A Idler and crawler system use independent connection modules. When replacing, you only need to remove some fixings and retain the main crawler structure.
STONE

Stone is a leading supplier of engineering machinery parts, focusing on providing high-quality parts for mining companies. Since its establishment in 2004, we have been based in Shanghai, China, and have built our own brand STONE, becoming a trusted choice in the industry. We are committed to providing a variety of parts including bulldozers, excavators and wheel loaders for well-known brands such as Caterpillar and Komatsu. Our product line covers a full range of OEM parts, such as Track Chain, Track Rollers, Sprocket, Excavator Buckets, Blades, Excavator Cylinders, Swing Circles, and various electrical and hydraulic components to ensure that our customers' stringent requirements for quality and performance are met.
quality
years experience
service
hours warrant
Q&A
Q:What is the actual effect of the Komatsu D375A idler anti-derailment design when operating on steep slopes?
A:Technical parameters:
The wheel flange height is increased to 85mm (standard is 60mm)
The maximum permissible lateral deviation angle has been increased from 12° to 18°
Case data: In the Tibet hydropower station project, the 35° slope operated continuously for 600 hours without derailment
Q:Is the self-cleaning feature effective on clay soils?
A:Dual mechanism:
Spiral groove design: automatically discharges about 300g of slime per rotation
Teflon coating: The surface friction coefficient is only 0.04, and the amount of clay adhesion is reduced by 75%.
Maintenance suggestion: In red clay working conditions, tap the wheel body with a mallet after each shift to help remove residual mud
Q:Will it be compatible with third-party track shoes after purchase?
A:Compatibility list:
✅ American Berco series mining crawler (adapter ring required)
✅ Japan KCM wetland crawler (need to adjust the tension to 320±10kN)
❌ Non-standard modified tracks (may cause abnormal wear of wheel rims)
Q:What key indicators should we pay attention to in daily inspections?
A:
Quick Checklist:
Rim thickness < 45mm (55mm for new parts) needs to be replaced
Bearing radial clearance > 0.8mm should be maintained immediately
The sealing lip is cracked or hardened and must be replaced Tool recommendation: Use Komatsu special clearance detector (accuracy 0.01mm)
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