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4PCS Bottom Rollers For Kubota/KX91-3/KX91-3S/KX91-3S2 Excavator Undercarriage
Items Description
Fits For:

Kubota KX91-3 KX91-3S KX91-3S2 

This roller will not fit models KX71, KX91-2/2S or U35-4


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℃.

 

Features:

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. Most of our orders ship within 1 business day after payment received. (Except the pre-sale products and special cases)
  2. If you have not received your shipment within 15 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction!
  3. Due to stock status and time differences, we will choose to ship your item from our first available warehouse for fast delivery.
  4. Many of our products have overseas warehouses.
  5. Our product comes with free shipping, but some remote areas require additional shipping fees.
  6. In order to ensure that everyone receives the product faster, please check if the address includes the house number and try not to fill in the pobox address.
WE ACCEPT THESE PAYMENT METHODS:
PAYPAL / VISA / MASTERCARD / AMERICAN EXPRESS / DISCOVER
60 Days Free Return, please notify us within 60 days after you've received your product.
Items to be returned must be in resalable condition.
Return Check List
Original packaging
PartsHawk RMA (return merchandise authorization) form
All accessories & hardware..
Your warranty lasts for one year from the delivery date of your item. It covers functionality problems that occur with the auto part as a result of manufacturing. It does not cover damage caused by improper installation; by accidents or damage sustained after installation; or by negligence in maintaining the part after installation.
If you have any question or need any help from us, please feel free to send an email to us via ebay message system.We will try our best to reply all e-mails within 24 hours, there might be some delay during weekends and holidays.

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It won't help you solve the problem any faster by leaving negative feedbacks, only by contacting our professional customer suppport can help you solve the problems.

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Fits For:

Kubota KX91-3 KX91-3S KX91-3S2 

This roller will not fit models KX71, KX91-2/2S or U35-4


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℃.

 

Features:

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.

 

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