Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
{"title":"E70B Excavator Carrier Roller Sealed Excavator Top Roller New Upper Roller","imgUrl":"https:\/\/img.chinax.com\/nimg\/94\/95\/6194c2fdb954ef4039ae23d97ca9-200x200-1\/e70b_excavator_carrier_roller_sealed_excavator_top_roller_new_upper_roller.jpg","attrs":{"Packaging Details":"Export pallet packaging","Model Number":"E70B","Brand Name":"STST","Material":"50Mn\/40Mn2"}}
{"title":"Hitachi EX200-2 Excavator Undercarriage Part Carrier Roller Heavy Duty And High","imgUrl":"https:\/\/img.chinax.com\/nimg\/5c\/00\/d75a686fa0ec08dec2758af00a18-200x200-1\/hitachi_ex200_2_excavator_undercarriage_part_carrier_roller_heavy_duty_and_high_wear_resistance.jpg","attrs":{"Certification":"CE\u3001SGS\u3001CNAS\u3001COC\u3001ISO","Color":"Black or Yellow or Customized","Model Number":"EX200-2","Model NO.":"200-2 Carrier Roller"}}
{"title":"Heavy Load Capacity And High Wear Resistance Carrier Roller Excavator For DOOSAN","imgUrl":"https:\/\/img.chinax.com\/nimg\/f2\/be\/1d47cc66b179c2237029462ad83f-200x200-1\/heavy_load_capacity_and_high_wear_resistance_carrier_roller_excavator_for_doosan_dx225.jpg","attrs":{"Model Number":"DX225","Color":"Black","Packaging Details":"Export pallet packing","Minimum Order Quantity":"2"}}
E320 Excavator Top Roller For Excavator Undercarriage Parts, Improves Undercarriage Efficiency, Reduces Vibration And Impact
Product Overview
The E320 Top Roller, also known as carrier roller, is a vital undercarriage component specially engineered for CAT excavators. Installed on the upper frame, it reliably holds up the track chain to avoid track sagging, bouncing and deviation during operation. This premium roller effectively optimizes the overall running efficiency of the undercarriage system, while greatly cutting down vibration and impact force generated in working processes. Adopting superior raw materials and mature manufacturing techniques, it delivers stable performance, outstanding durability and long service life. It is an ideal OEM replacement part for various medium and heavy-duty construction, mining and earthmoving projects.
Compatible Models
This top roller is precisely manufactured to fit a wide range of CAT excavator models:
Product Name: Top Roller / Carrier Roller / Upper Roller
Application: Excavator Undercarriage Spare Parts
Condition: Brand New
Standard: OEM Dimension, Direct Fit Replacement
Material & Manufacturing Proces
We select high-grade 50Mn / 40CrMn alloy structural steel as raw material. The roller body is made via integral forging, which strengthens structural rigidity and load-bearing capacity. The raceway surface is treated with high-frequency quenching, reaching a surface hardness of HRC 54–58 and a hardened layer depth of 6–9 mm. This process endows the roller with strong resistance against wear, impact and deformation.
Equipped with standard floating oil seal, paired with oil-proof, wear-resistant NBR sealing rings and dust-proof rings, the sealing system works perfectly to block mud, water and sand from entering the interior. The solid quenched and tempered shaft features excellent bending resistance, ensuring stable operation even under continuous heavy loads.
Product Advantage
Boost Undercarriage Efficiency: Supports track chain steadily to maintain normal track operation, effectively improving the overall working efficiency of the undercarriage.
Lower Vibration & Impact: Smooth rotation reduces mechanical vibration and impact force, relieving component fatigue and creating a more stable operating state.
Superior Wear Resistance: Forged body and deep quenched layer resist abrasion and heavy impact, not easy to crack or suffer eccentric wear.
Excellent Sealing Performance: Reliable floating seal prevents oil leakage and foreign matter intrusion, lowering the risk of early damage and reducing maintenance frequency.
Direct Installation: Strictly follows OEM standards, no modification needed for quick and easy replacement.
Wide Applicability: Performs excellently in earthwork, infrastructure, mining, gravel yards and other medium and heavy load working conditions.
FAQ
Q1: Which excavator models does this E320 top roller fit?
A1: It is fully compatible with CAT E320, E320B, E320C, E320D, E322 and E325 series excavators. All dimensions comply with OEM standards for direct installation.
Q2: Can this roller reduce vibration and impact during operation?
A2: Yes. Its stable structure and smooth running effectively buffer impact and cut down vibration, protecting the undercarriage and extending the service life of related parts.
Q3: What is the main material and production process of this product?
A3: It is made of 50Mn / 40CrMn alloy steel, processed by integral forging and raceway high-frequency quenching, equipped with high-performance floating oil seal assembly.
E320 Excavator Top Roller, Excavator Undercarriage Parts, E320 Top Roller,Improves Undercarriage Efficiency Top Roller, Reduces Vibration And Impact Top Roller
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2006
Total Annual:
8000000-12000000
Employee Number:
67~120
Ecer Certification：
Verified Supplier
Quanzhou Mingzhu Technology Development Co., Ltd Quanzhou Mingzhu Technology Development Co., Ltd
