71903-LLB ABEC5 Enduro Angular Contact Bike Bearing 17x30x7

71903-LLB ABEC5 Enduro Angular Contact Bike Bearing 17x30x7
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Brand:  Enduro
Enduro Range:  ABEC5
Measurement Unit:  Metric
Inside Diameter:  17.00mm
Outside Diameter:  30.00mm
Width:  7.00mm
Seals or Shields:  Rubber Seals
Clearance:  Standard

Availability:  

  

Our Price:  £10.90(Exc. 20% VAT)(£13.08 Inc. VAT)
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  (4 Reviews)

Enduro


71903-LLB ABEC5 Enduro Angular Contact Bike Bearing 17x30x7

Angular Contact (A/C) cartridge bearings are specifically designed for hubs. In standard radial bearings, only 3 or 4 balls make contact during the load, at any given time. In Angular Contact (A/C) bearings, ALL balls are engaged and spread the force over a larger surface area, to decrease friction, and minimize wear. Wheel play can be adjusted out of the hub, to giving a more stable wheel, making it easier to adjust disc brakes, while still spinning freely.

When fitting these angular contact bearings ensure the load is applied to the inner ring on the red seal side of the bearing.

Enduro ABEC-5 Specification:

Grade 5 Chromium Steel Balls
High precision balls are within 5/1,000,000″ round. R-64 hardness, of the highest grade.

52100 High Carbon Chromium Alloy Races
Vacuum de-gassed process for the purest chromium alloy steel, hardened to R-62, extremely tough and very durable. Polished to a mirror finish for ABEC-5 precision and noiseless movement.

Graphite/Nylon Ball Retainers
Nylon with graphite retainers are virtually frictionless while providing constant lubrication.

The ABEC-5 Standard
To meet the ABEC-5 standard, bearing design must pass all tests, which include noise testing at high RPM, extremely close tolerances for I.D. and O.D., roundness of ball, trueness of the races and micro surface finishes of balls and races.

 

Average Rating (4 Reviews):  
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Rating:  
Super smooth
Thursday, 28 February 2019  | 

After finding my rear wheel was constantly loosening, I've replace the cheap Chinese radial bearings with these quality angular contact bearings, as the hub has no centre tube to support the inner races, now I've got a super smooth, fast rolling bike (also fitted new Endure bearings to front hub). Great service from Wych as well, quick delivery.

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Rating:  
Excellent product
Wednesday, 20 February 2019  | 

These replace my rear hub bearing in my 29 inch MTB hardtail. Quick service and at a good price.

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Rating:  
Great service
Friday, 15 June 2018  | 

Replacement bearings for year old giant SLR wheel (worrying). Can't comment on bearing other than they spin smoothly and fit perfectly, but then most do when they're new. Time will tell how long for...
However service from Wych was spot on. Order placed online for basic replacement bearings in the evening. Emailed in the morning to ask if I could change order to these higher spec bearings. Swap done. Refund made and new bearings turn up in the post the following morning. Perfect. Thanks

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Rating:  
Perfect replacements
Friday, 11 August 2017  | 

I bought these to replace rear bearings in a pair of Vision metron wheels, having already done the front wheel. They're perfect. Much better than the cheap eBay ceramics I tried. No play, no noise and smooth, free spinning wheels. What else can I say, oh, the service from wychbearings was spot on once again!

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