Wear-Proof Carrier Roller for Heavy Mining Excavators with Enhanced Steel Alloys (DIN Approved)
CARRIER ROLLER
A carrier roller, also known as a top roller or upper roller, is a component of the undercarriage of tracked machinery such as excavators, bulldozers, and other construction equipment. The carrier roller is located at the top of the undercarriage and serves to support the weight of the track chain and distribute the weight evenly across the undercarriage.
The carrier roller typically has a cylindrical shape with a bearing in the center and rotates on an axle, allowing the track chain to move smoothly and reduce friction. Carrier rollers play an important role in ensuring the stability and durability of the undercarriage and preventing premature wear and tear of the track chain.
Carrier rollers are designed to support the weight of the track chain and distribute the weight evenly across the undercarriage. They are typically located at the top of the undercarriage and serve to keep the track chain in place. Carrier rollers are also known as top rollers or upper rollers.
* Excavator carrier rollers are made of the roller body, shaft, collar, bimetallic bearings, and seal group. it is made through forging, machining, heat treatment, assembly, and painting.
* The quality and working life depend on the quality of the raw steel, the hardness of the rail surface, the depth of the hardness layer, and the quality of the seal group
ROLE OF ROLLERS
Upper rollers support the weight of the track chain and maintain proper tension, allowing the track to move smoothly along the track frame.
Upper rollers are made of high-strength steel and are durable enough to withstand the rigors of heavy-duty excavation operations.
Heavy-duty upper rollers can withstand the forces applied during operation and maintain performance for a longer period of time
Regular maintenance and timely replacement of worn rollers are essential practices.
| EXCAVATOR CARRIER ROLLER SPECIFICATIONS |
| Product Name |
Excavator Carrier Roller |
| Keywords |
Carrier Roller |
| Material |
50Mn/40Mn2 |
| Size |
Follow OEM Strictly |
| Finish |
Smooth |
| Heat treatment |
Yes |
| Technique |
Forging, Casting, Machining, Heat Treatment |
| Surface Hardness |
HRC52-58,Deepth:8-12mm |
| Suitable |
Excavator Bottom Roller |
| Color |
Black, Grey, Yellow |
| After-Sales Service Provided |
Video Technical Support |
| Quality |
100% Tested |
| Package |
Standard Export Pallet |
| OEM |
OEM Services Provided |
| MOQ |
1 Piece |
| Support customization of idler pulleys of various specifications and uses |
| Paramo |
A |
E |
B |
C |
D |
P |
H |
L |
M |
M |
M |
M |
Remark |
Remark |
| Code |
| DH220 |
287.5 |
176 |
84 |
50 |
149 |
125 |
50 |
φ168 |
φ143 |
φ47 |
4-φ18 |
112 |
18 |
--kg |
| EX60 |
189.5 |
105 |
50 |
20 |
88 |
94 |
34 |
φ98 |
φ85 |
φ30 |
4-φ14 |
65 |
16 |
--kg |
| EX60-1 |
176.5 |
106 |
50 |
0 |
93.5 |
94 |
34 |
φ119 |
φ100 |
φ40 |
4-φ14 |
65 |
16 |
--kg |
| EXI00/EX120-1 |
186.5 |
120 |
66 |
0 |
96.5 |
110 |
35 |
φ140 |
φ120 |
φ40 |
4-φ14 |
70.5 |
17 |
--kg |
| EX200-1 |
220.5 |
150 |
80 |
0 |
113 |
124 |
36 |
φ171 |
φ150 |
φ47 |
4-φ18 |
58 |
22 |
--kg |
| EX200-2/3/5 |
239.5 |
166 |
100 |
0 |
121 |
124 |
35 |
φ140 |
φ120 |
φ47 |
4-φ18 |
58 |
22 |
--kg |
| EX300-1 |
219 |
170 |
100 |
0 |
119 |
124 |
35 |
φ170 |
φ150 |
φ50/47 |
4-φ18 |
58 |
22 |
--kg |
| EX300-2 |
218.5 |
166 |
100 |
0 |
120.5 |
124 |
36 |
φ140 |
φ120 |
647 |
4-φ18 |
58 |
22 |
--kg |
| HD250 |
203.5 |
140 |
0 |
0 |
106 |
100 |
0 |
φ89 |
φ89 |
φ40 |
2-φ15 |
60.5 |
16 |
--kg |
| HD450 |
240 |
164 |
64 |
30 |
0 |
80 |
0 |
φ140 |
φ115 |
b47 |
2-φ21 |
60.5 |
16 |
--kg |
| HD700 |
251 |
175 |
80 |
40 |
130 |
150 |
0 |
φ145 |
φ120 |
φ47 |
2-φ21 |
95.5 |
25 |
--kg |
| HD1250-5 |
312 |
200 |
90 |
55 |
172 |
100 |
0 |
φ164 |
φ140 |
φ50 |
2-φ23 |
56 |
85 |
--kg |
| HD1250-7 |
277.5 |
200 |
90 |
55 |
144 |
150 |
0 |
φ164 |
φ140 |
φ50 |
2-φ21 |
93 |
25 |
--kg |
| PC60-5 |
197 |
120 |
50 |
0 |
102 |
110 |
0 |
φ120 |
φ110 |
φ40 |
4-φ14 |
70 |
15 |
--kg |
| PC60-7 |
242.5 |
164 |
42 |
0 |
125 |
110 |
42 |
φ148 |
φ90 |
φ40 |
4-φ14 |
46 |
17 |
--kg |
| PC100 |
197.5 |
120 |
0 |
0 |
103 |
110 |
40 |
φ120 |
φ120 |
φ40 |
4-φ16 |
70.5 |
19 |
--kg |
| PC100 |
197.5 |
120 |
55 |
0 |
103 |
110 |
40 |
φ120 |
φ120 |
φ40 |
4-φ14 |
70.5 |
19 |
--kg |
| PC200-7 |
241.5 |
164 |
80 |
40 |
123.5 |
68 |
35 |
φ145 |
φ120 |
φ44 |
4-φ18 |
29 |
54 |
--kg |
| PC300-7 |
322.5 |
200 |
100 |
60 |
156 |
90 |
55 |
φ178 |
φ148 |
φ50 |
4-φ18 |
46.5 |
75 |
--kg |
| PC400-7 |
329.5 |
206 |
105 |
70 |
162.5 |
90 |
55 |
φ178 |
φ148 |
φ50 |
4-φ18 |
46.5 |
75 |
--kg |
| SH60 |
123 |
108 |
45 |
15 |
97 |
100 |
0 |
φ110 |
φ90 |
φ33 |
2-φ18 |
71 |
24 |
--kg |
| SH120 |
192.5 |
128 |
65 |
0 |
104 |
120 |
0 |
φ140 |
φ120 |
47 |
2-φ18 |
48 |
22 |
--kg |
| SH200/SH280 |
247.5 |
175 |
80 |
40 |
129 |
140 |
0 |
φ145 |
φ120 |
φ47 |
2-φ21 |
51 |
20 |
--kg |
| SH265 |
230.5 |
160 |
60 |
35 |
116.5 |
140 |
0 |
φ140 |
φ115 |
47 |
2-φ21 |
51 |
22 |
--kg |
| ZAX240 |
236.6 |
164 |
80 |
0 |
120.5 |
90 |
35 |
φ141 |
φ120 |
φ47 |
4-φ18 |
51.5 |
|
|
KEY FEATURES
High-Strength Material: Constructed using 50Mn high-strength steel, ensuring exceptional durability and load-bearing capacity.
Multiple Manufacturing Processes: Utilizes precision casting, CNC turning, CNC grinding, and welding processes to ensure high-quality and consistent products.
Anti-Rust Surface Treatment: Professionally treated with anti-rust paint, providing additional corrosion resistance.
PRODUCT ADVANTAGES:
1. Superior Material: Our excavator track roller undercarriage spare parts are made of high-quality materials, ensuring exceptional durability and wear resistance. The parts undergo precise heat treatment, which enhances their hardness and makes them highly resistant to abrasive forces.
2. Enhanced Smoothness: With meticulous attention to detail, we have improved the smoothness of the shaft surfaces. This reduction in friction significantly minimizes wear and tear, ultimately extending the service life of the spare parts.
STRUCTURE AND COMPOSITION OF CARRIER ROLLER
A typical Carrier Roller is composed of a drum, bearings, sealing device, and supporting structure. The drum is usually manufactured from high-quality alloy steel to withstand heavy loads and meet the high-strength demands of prolonged usage. Bearings are embedded within the drum to ensure smooth and unobstructed rolling. The sealing device provides effective dust and water protection, prolonging the roller's lifespan. The supporting structure connects the drum to other components of the machinery, securely anchoring it to the track chain.
IMPACT ON MACHINE PERFORMANCE
Integral to stability and traction, the track roller significantly influences the overall performance of the crane. It plays a crucial role in maneuverability and enables the machine to operate efficiently across a variety of terrains.
ADVANTAGES OF CHOOSING OUR LOWER ROLLERS
1. OEM part number guidance
2. Produce according to drawings.
3. We have advanced technology and 100% tested before delivery.
4. Fast delivery and competitive price.
5. The larger the quantity you order, the better price and faster delivery we can provide.
Q1. How do you ensure the parts you send are high quality?
Once we receive the raw material we will do the chemical composition testing and in production, our QC will do the random inspection of every lot of the dimensions, appearance, mechanical properties hardness, impact value, etc. To make sure every part is qualified.
Q2. What is the payment term?
Usually 50% deposit and the balance before the shipment or against the BL copy. TT, lc is welcome.
Q3. If we want to do our logo, is that acceptable?
Yes, OEM & ODM are welcome.
Q4. What's the lead time?
For the normal order, it usually takes 15-30 days after receiving the deposit as agreed.
Q5. What kind of package do you offer?
Normally we use the export standard pallets, if you have any special requirements, we can discuss them.
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