Package Include:
1 x Bottom Roller
Vehicle Fitment:
For Caterpillar CAT 301
Specification:
1. Shell
Material 50Mn, through hardened HRC 25-28, CASE hardened HRC52-56, hardened thickness 5-8mm.
2. Side cover : QT450-10.
Strength is as follows
Tensile strength σb (MPa): ≥450
Yield strength σ0.2 (MPa):≥310
Hardness:160 ~ 210 hb
3. Roller, 45# carbon steel or 40Cr, quenched HRC25-30, surface quenched HRC52-58, hardened to a depth of 2-3mm.
4. Locking pin, 65Mn or 45 carbon steel, hardened HRC25-28.
5. Bolt, grade 12.9, HRC45-52. 6.
6. Seal: Nitrile rubber. Operating temperature range -20℃ to 110℃.
Feature:
1.This bottom roller is a durable undercarriage replacement part for your excavator.
2.Our rollers utilize special high strength-hardened steel and quality seal groups that provide excellent lubricating oil retention.
3.Sealed bearings stop dirt, mud, and grime from penetrating inner components.
4.It was designed and manufactured to exact OEM specifications using a high-quality, high-strength steel.
5.It will provide long-lasting and dependable performance even if you operate in the most extreme conditions.
- 1. Items post from USA, We have multiple warehouses in multiple states, we will arrange the shipment nearby according to the buyer's address.
- 2. All orders will be handled within 1 business day after payment received.
- 3. Delivery Time: 2-5 business days (Varies by Destination).
- 4. We do not ship to P.O. Box, APOs, FPOs, APO, FPO, HI, AK, PR, GU, VI or Military Mail Box.
- 5. If you can't get the parcels in time, kindly contact us to resolve the problems.
- WE ACCEPT THESE PAYMENT METHODS:
- PAYPAL /VISA / MASTERCARD / AMERICAN EXPRESS / DISCOVER
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A new return is considered a brand new item that you ended up not needing or perhaps you purchased incorrectly for your specific vehicle.
Please keep in mind that spending time before purchasing the part to confirm it is indeed exactly what you need can help prevent you from ordering the wrong part.
Please remember to email us which warehouse to send the item back before return. And all returns must be shipped back in their original factory packaging.
Shipping Damage
Shipping damage is any item/package suspected of being broken or damaged in anyway during the shipping process. We purchase full insurance for this, however the damage must be reported to us within 3 days of receiving the package.
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1 Year warranty against manufacture defect.
Replace/return are available if buyers receive wrong/damaged/defective items.
For replacement or return , buyer should keep the item in acceptable packing.
Before replace or return ,buyer should submit proof to us by pics if possible.
Anyway ,by nice communications ,we can find a way to make you satisfied
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Very appreciated for your support. I hope you are happy with your purchase.
We maintain high standards of excellence and strive for 100% customer satisfaction!
Feedback is very important to us.We request that you contact us immediately BEFORE you give us
or 
feedback, so that we can satisfactorily address your concerns.
If you have any problem, please feel free to contact us via ebay message, we will reply your email within 24 hours (except weekends and holidays). We will do our best to solve your problem as soon as possible.
We appreciate your continued patience and willingness to work with us. Thank you for choosing us and have a great day!
On Jun 1, 2026 at 22:58:07 PDT, seller added the following information: