Quanzhou Nanfeng Machinery Manufacturing Co., Ltd.
Email: cai@nanfengmachinery.com TEL: 86--13655959125
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990178 E120B Excavator Chassis Frame Roller
  • 990178 E120B Excavator Chassis Frame Roller
  • 990178 E120B Excavator Chassis Frame Roller
990178 E120B Excavator Chassis Frame Roller

990178 E120B Excavator Chassis Frame Roller

Place of Origin Fujian China
Brand Name NF
Certification CE, ISO,SGS
Model Number PC300-5
Product Details
Production Method:
Casting And Forging
Material:
50mn, 35mnb
Color:
Yellow /Black /Gery
Condition:
New
Highlight: 

990178 top roller

,

990178 track roller

,

caterpillar top roller

Payment & Shipping Terms
Minimum Order Quantity
10 Piece
Packaging Details
Carton, Wood Case or Pallet
Delivery Time
15-30 Days
Payment Terms
L/C,D/A,D/P,T/T
Supply Ability
30,000 pieces per month
Product Description

990178 Top Roller for Caterpillar E120B Excavator Undercarriage Frame

Heat Treatment Strengthening

Heat treatment is a key process to improve the wear resistance and strength of the carrier roller. Usually, quenching is performed on core components such as the roller body, and some are combined with normalizing and tempering processes. This ensures the surface hardness of the carrier roller reaches HRC50 - 58, with the hardness layer depth controlled within 4mm - 10mm. It not only enhances the wear resistance of the roller body surface but also guarantees internal toughness, preventing the carrier roller from breaking under heavy loads.

Component Assembly

First, wipe the processed shaft clean and install it into the roller body. Then sequentially install bearings, floating seal rings, sealing rings, and inner/outer end caps at both ends of the roller body, and fix them with components such as elastic pins to prevent loosening. Before assembly, clean components like the roller body and shaft with a special cleaning agent to remove surface oil stains and iron filings. During assembly, apply grease to relevant parts to ensure smooth rotation. Afterwards, inject the specified type of lubricating oil through the oil hole, and finally tighten the oil plug and screws to ensure adequate lubrication.

990178 E120B Excavator Chassis Frame Roller 0

990178 E120B Excavator Chassis Frame Roller 1

990178 E120B Excavator Chassis Frame Roller 2

There are more of spare parts for your reference:

 

Fit for BRAND WSG CATALOGUE
  PC30 PC40 PC45 PC60 PC75 PC100 PC120 PC150 PC200
PC220 PC300 PC350 PC400          
  E70B E110 E120B E215 E235 E307 E311 E312 E322
E180 E240 E200B E320 E300 E300B E330 E325  
DAEWOO DH55 DH200 DH220 DH280          
For HITACHI EX30 EX40 EX60 EX100 EX120 EX200 EX220 EX270 EX300
EX400 EX600 UH043 UH052 UH053 UH07 UH081 UH082 UH083
FIAT FH120 FH130 FH150 FH200 FH220 FH270 FH300    
HYUNDAI R55 R60 R70 R80 R110 R130 R150 R200  
KATO HD140 HD250 HD400 HD450 HD550 HD700 HD820 HD850 HD880
HD900 HD1220 HD1250            
KOBELCO SK40 SK60 SK100 SK120 SK200 SK220 SK04-2 SK07  
SK07N2 SK09 SK12 SK14 SK300 SK310 SK400    
For MITSUBISHI MS110 MS120 MS180 MS230 MS280        
For SAMSUNG H.I. MX8 SE200 SE210 SE280 MX292        
SUMITOMO SH70 SH100 SH120 SH160 SH200 SH260 SH265 SH280 SH300
SH340 LS2650 LS2800 LS3400 LS4300        
BULLDOZER D20 D3C D30 D31 D37 D40 D41 D45 D50
D53 D57 D58 D60 D63 D65 D68 D75 D80
D85 D95 D135 D150 D155 D3 D3L D3D  
D4 D4C D4D D4H D5 D6 D6C D6D D6H
D7 D7G D8K D8N          

How to Identify the Condition of the Track Roller for Komatsu PC300-5

To determine whether the track roller of the Komatsu PC300-5 is in good condition, you can start from the following aspects:

1. Visual Inspection

Surface Wear Condition

Examine the surface of the track roller. If there are obvious scratches, grooves, or uneven wear—especially severe wear on the edges of the roller body—it indicates that the roller has been in use for a long time or is under uneven stress, and its quality may be poor.

Presence of Cracks

Carefully check the surface of the track roller and the spoke area. Even tiny cracks can cause the track roller to suddenly fail during operation, affecting the normal operation of the excavator.

Rust Condition

If there is extensive rust on the surface of the track roller, it will not only affect its appearance but also may weaken its strength and shorten its service life.

FAQ:

  • Q: How many days for delivery?
    A: Standard delivery takes 10-20 days depending on quantity. Urgent orders can be accommodated upon request.
  • Q: Are you a manufacturer or trading company?
    A: We are a manufacturer with over 20 years of production experience. Our trading subsidiary handles international operations.
  • Q: Can I get samples?
    A: Yes, samples are available with prepayment of sample and freight costs, refundable upon order placement.
  • Q: How is quality guaranteed?
    A: All products undergo strict testing procedures and must pass 100% quality inspection before shipment.
  • Q: What after-sales services do you provide?
    A:
    • 24/7 customer support response (including holidays)
    • Technical support available anytime
    • Free replacements for confirmed quality issues
  • Q: What payment methods do you accept?
    A: We accept T/T, D/A, D/P, L/C, O/A and other preferred payment methods before shipment.
Contact Information
WhatsApp: +375 (25) 660-12-83
WeChat: +86 13655959125 / 15860377809
Email: cai@nanfengmachinery.com

990178,Top Roller,Caterpillar E120B Roller,Excavator Undercarriage Frame,Excavator Top Roller  E120B

 

 

Tags:

excavator top roller,

excavator upper roller,

excavator carrier roller

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13655959125
No. 506, Zikeng, Si Huang Village, Xiamei Town, Nan'an City, Quanzhou City, Fujian Province, China
375256601283
13655959125
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