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#325665

31320 XJ2/DF

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  • Brand:
  • Model: 31320 XJ2/DF
  • Condition: NEW
  • SKU: 325665

SKF-Bearing 31320 XJ2/DF

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  • Typically ships in: 1 day
  • Weight: 41.1 lb
  • Unit of measure: each

$2,271.38 Each

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Returnable:No

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Return policy

Disclaimer: The return policy information shown below is merely an excerpt from SKF's General Conditions of Sale.

RETURN OF GOODS FOR CREDIT

Goods will not be accepted for return without prior written approval from SKF. The return freight must be prepaid by the Buyer. Unless return of Goods is due to Supplier error, Goods returned will be subject to a credit service fee of $25.00 or 15% of the credit value, whichever is greater. An additional service fee may apply is further inspection is required at the discretion of SKF

Return policy

Disclaimer: The return policy information shown below is merely an excerpt from SKF's General Conditions of Sale.

RETURN OF GOODS FOR CREDIT

Goods will not be accepted for return without prior written approval from SKF. The return freight must be prepaid by the Buyer. Unless return of Goods is due to Supplier error, Goods returned will be subject to a credit service fee of $25.00 or 15% of the credit value, whichever is greater. An additional service fee may apply is further inspection is required at the discretion of SKF

Additional Description

Specifications
Item #:31320 XJ2/DF
Item Name:Single Row, Paired Face-To-Face Tapered Roller Bearings
Principal Dimension d:3.937 in
Principal Dimension D:8.4646 in
Principal Dimension T:4.4488 in
Basic Dynamic Load Ratings C:145000 lbf
Basic Static Load Ratings C0:209000 lbf
Speed Ratings - Reference:1700 rpm
Speed Ratings - Limiting:3000 rpm
General Description
The factors that influence SKF bearing performance and service life include but are not limited to the following :

Roller end/flange contact area

The geometry and surface finish of the roller ends and the area on the flange that makes contact with the roller ends, have been optimized to promote and maintain the formation of a lubricant film. This reduces friction and heat generated by the bearing as well as flange wear. The bearings can better maintain preload and run at reduced noise levels.

Raceways profiles

To increase service life under misalignment or heavy load conditions, SKF tapered roller bearings have either crowned raceways or a logarithmic profile to prevent stress peaks at the roller ends. The logarithmic profile is designed to optimize load distribution along the rollers.

Consistency of profiles and roller size

The rollers used in SKF tapered roller bearings are made to such close tolerances that they are virtually identical. These extremely close tolerances, together with the precision of the raceway profiles, provide optimal load distribution over the rollers, to reduce noise and vibration levels and enable preload to be set more accurately.

Running-in

Tapered roller bearings typically have a running- in period. During the running-in period, a conventional design tapered roller bearing experiences a significant amount of friction, resulting in wear, which can be noticed as a temperature spike. With current SKF tapered roller bearing designs, friction, wear and frictional heat are significantly reduced, provided the bearings are mounted and lubricated correctly.

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