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Products information 1)Idler roller body material: 35Mn/35MnB/40Cr/#45Carbon steel 2)Surface hardness: HRC52-60 ;Hardened layer:5~7mm; 3)Shaft material: 40Cr/42CrMo 4)Shaft Hardness: HRC54-60,Hardened layer:2~4mm; 5)Tensile Strength:≥600MPa;Yield Strength:≥350MPa; 6)Impact Toughness: ≥30J/cm2（normal temperature） 7)Package: packed in strong pallets 8)Application: idlers guide the track in and out of the track rollers. They intermittently support the machine's weight and provide a way to c
Long wear parts@ supply high quality Komatsu Front Idler/Komatsu Idler Group/ Komatsu Track Idler/ Komatsu Idler Wheel/ Komatsu Idler Roller.
Long wear parts@ idler wheel is forged from high-quality alloy steels—such as 35Mn, 35MnB, or 40Cr—offering exceptional strength and toughness to resist fracture.
The wheel tread undergoes intermediate-frequency induction hardening, achieving a hardness of HRC 52–60; the hardened layer is uniform, ensuring excellent wear resistance without spalling.
Precision machining ensures superior coaxiality, resulting in smooth, vibration-free operation that minimizes track wear.
The wheel body features an optimized structural design that provides excellent resistance to both impact and fatigue, ensuring stable performance even under the heavy-load conditions typical of mining operations.
Reliable sealing effectively prevents the ingress of dust and water, thereby extending the service life of the internal bearings and bushings.
Long wear parts@idler groups are compatible with Caterpillar(CAT) /Komatsu /ESCO /Sany /Doosan/ Hyundai/ Hitachi/ Liebherr/ Hensley /VOLVO/ Liugong/ Xugong/ MTG/JCB/H&L/Combi/ Case/John deere/Kobelco/Fiat/Sumitomo/ Bobcat/Samsung machines and so on.
Model
Part number
Alternative No.
Description
D275A-5
17M-30-00310
17M3000310
Komatsu Idler Group
D475A-5
198-30-00561
1983000561
Komatsu Idler Group
PC600-6
21M-30-00301
21M3000301
Komatsu Idler Group
PC650-5
209-30-00014
2093000014
Komatsu Idler Group
D39EX(D41P-6K)
124-30-00105
1243000105
Komatsu Idler Group
D39EX(D41P-6K)
124-30-00106
1243000106
Komatsu Idler Group
D31PX
11Y-30-00012
11Y3000012
Komatsu Idler Group
D85EX-15
154-30-01010
1543001010
Komatsu Idler Group
D51PX-22
12Y-30-00011
12Y3000011
Komatsu Idler Group
D65EX-17 With Plate
14X-30-00431
14X3000431
Komatsu Idler Group
134-30-00401 (D68ESS-12 With Plate)
134-30-00401
1343000401
Komatsu Idler Group
D37
11Y-30-01510
11Y3001510
Komatsu Idler Group
D39EX-23
11Y-30-00112
11Y3000112
Komatsu Idler Group
Contact: Zoe Shi
Phone: +86-19700710133
Tel: +86-19700710133
Email: order@longwearparts.com
Add: Beilun District, Ningbo, China
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