CAT E320 320L Upper Carrier Roller for CAT Excavator Undercarriage
Product Details
| Colors: | Black Or Yellow | Weightcapacity: | Supports Heavy Loads |
|---|---|---|---|
| Countryoforigin: | China | Compatibility: | Fits Various Excavator Models |
| Colour: | Yellow Or Black Or Customer Required | Condition: | 100% New |
| Machine Model: | Customer Request | Application: | For Excavator Undercarriage Parts |
| Product Process: | Appropriate Quenching | Excavator Type: | Crawler Excavator |
| Highlight |
CAT 320L Upper Carrier Roller,Excavator Undercarriage Upper Carrier Roller,CAT E320 Top Upper Track Roller |
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Product Description
CAT E320 320L Carrier Roller Top Upper Track Roller for CAT Excavator Undercarriage
Product Parameter
| English Item | Technical Data |
|---|---|
| Product Name | CAT E320/320L Carrier Roller / Top Roller |
| Applicable Model | CAT E320,320L,E320B/E320C/E320D |
| Raw Material | 40Mn2 High Manganese Alloy Forged Steel |
| Rolling Surface Hardness | HRC55~60, Hardened Depth ≥4mm |
| Main Shaft Material | 50Mn Quenched Solid Integral Shaft |
| Sealing Configuration | Double Floating Oil Seal + NBR Sealing Ring |
Working Principle
- Top carrier roller bears full weight of upper track chain, suspend upper track to keep reasonable track tension.
- Roller outer ring rolls along track link inner surface, convert sliding friction into low-loss rolling friction to reduce track wear.
- Dual floating oil seal seals bearing chamber, lock internal lubricant to realize long-term automatic lubrication of spindle rotation.
- Limit upward & lateral displacement of upper track, prevent track sagging, swing and off-track during climbing & rough ground traveling.
- Disperse instantaneous impact load generated from uneven terrain walking to excavator chassis frame.
Product Competitive Advantages
- Equal service lifespan as genuine CAT original part with favorable aftermarket factory-direct price, cut total procurement cost for buyers.
- 1:1 original dimension replication, bolt-on direct installation without any on-site modification, save installation labor expense.
- Deep hardened roller surface plus high-standard floating seal, low failure rate and reduce long-term maintenance replacement cost.
- Strict full inspection before shipment, extremely low oil leakage rate for qualified finished rollers.
- Sufficient spot inventory, tiered discount for bulk order, flexible sea/air/express global delivery options.
FAQ
Q1: Which excavator model fits this carrier roller?
A1: Perfect match for CAT E320,320L,E320B/E320C/E320D excavator.
Q2: Is it direct replacement for original CAT top roller?
A2: Yes,1:1 OEM dimension, bolt-on installation without modification.
Q3: What’s the roller body material & hardness?
A3: 40Mn2 forged steel, rolling surface HRC55~60 with ≥4mm hardened layer.
Q4: Can I order small sample & bulk wholesale?
A4: Sample order acceptable, bulk purchase gets preferential tiered pricing & fast delivery.
Product Highlights
Durable CAT E320 carrier roller with 40Mn2 forged steel, HRC55-60 hardened surface, and double floating oil seals. 1:1 OEM fit, direct bolt-on installation, and factory-direct pricing for reduced procurement costs.
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