MRA-1728-LLB ABEC5 Enduro Angular Contact Bike Bearing 17x28x7

MRA-1728-LLB ABEC5 Enduro Angular Contact Bike Bearing 17x28x7
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Brand:  Enduro
Enduro Range:  ABEC5
Measurement Unit:  Metric
Inside Diameter:  17.00mm
Outside Diameter:  28.00mm
Width:  7.00mm
Seals or Shields:  Rubber Seals
Clearance:  Standard



Our Price:  £8.05(Exc. 20% VAT)(£9.66 Inc. VAT)
  (4 Reviews)


MRA-1728-LLB ABEC5 Enduro Angular Contact Bike Bearing 17x28x7

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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Angular contact hub bearing
Tuesday, 4 August 2020  | 

With a move from cup and cone bicycle hub bearings, many have used deep grove ball bearings. However, cup and cone bearings were used to maximum the distribution of bearing loads, and tolerate some axle flex. By fitting angular contact bearings in a pair of hubs that would otherwise use deep grove ball bearings dramatically increases the bearing life, and intervals before bearing replacement becomes necessary. This makes angular contact bearings a better financial option without compromising performance.

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Excellent product
Wednesday, 20 February 2019  | 

These replaced my freewheel hub bearings on my 29 inch rear MTB hardtail. Quick service at a good price.

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Mavic ID360 rear hub bearing replacement
Monday, 30 April 2018  | 

Just replaced one of the two factory-installed bearings on my Mavic ID360 rear hub with the MRA-1728-LLB ABEC5 Enduro Angular Contact Bearing. In this hub the axle is held in place by means of a wave washer and a circlip, so there is some side pressure applied to the inner ring of the bearing, thus my choice of the particular "angular contact" bearing, which requires and works better under such pressure. It looks like a quality product, time will tell. To my knowledge no other brand makes bearings in the 17x28x7 dimensions.

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1 of 1 people found this review helpful.

Cuscinetti mtb
Monday, 27 November 2017  | 

Ottimo prodotto. Prezzo onesto.

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