Hubs Bearing Guide

The hub is the central part of your bikes wheels (front and rear), which connects to the wheels rim via the spokes and through which the axle is fitted, enabling the wheel to freely spin on two sets of bearings.

As bikes have front and rear wheels, so too have they front- and rear-specific hubs. The front hub is simply designed to enable the wheel to spin, while the rear hub is a little more complex as it also forms part of the bikes transmission – the cassette or sprocket which drives the rear wheel is attached to the rear hub, which on most bikes also features mechanism to allow you to coast or freewheel (exceptions being fixed-gear or fixie bikes and track bikes).

Your wheels spin more than any other part of your bike. Therefore, having the best bearings in this application is crucial to producing the best results.

DETAILS

Item: 61902/16-2RS

Closures: 2RS Sealed

Structure: Ball Bearing

Dimensions: 16 x 28 x 7 mm

ID (inner diameter): 16 mm

OD (outer diameter): 28 mm

Width: 7 mm

Quantity: 1 Lot = 1 PC

A Special Structure

Besides the patch where your tires meet the road, whats the next spinning component that can either slow you down or let you roll faster?

You would be correct if you said hubs, but that component would be more accuray described as the bearings inside.

And if youve put this Hub Bearings ABEC-3 bearings inside, youve just upgraded your hub to another level.

Accuray ground and polished to ABEC-3 Precision Tolerances,
Grade10 Steel Balls roll with less resistance guided by a special retainer.
Rivet-Type Cage keep them rolling with the least amount of drag or resistance.
LLB seals keep the dirt out and the Low Noise Grease inside with the V-Groove Sealed design.
Runs fast with ultimate protection for long runs in between service.

Upgrade your bike with something you can actually feel makes you go faster.

F A Q

1. Why do the bearings I received have shaking?

The clearance of the bearing is related to the play.
The default is the standard C0 clearance, which is usually 3-18um.
The corresponding principle is shown in the figure below.
If you dont need to shake, please choose C2 small clearance bearing.
If you have any questions, please contact us before purchasing.

2. What is the accuracy of ABEC-1?

ABEC is the American ANSI standard.
The corresponding German DIN standard and international ISO standard are as follows:

3. Do you provide logistics tracking information?

Yes, all our products provide full logistics tracking.
And the products you buy are all new.
We will buy transportation insurance for you.
If the product is damaged or lost during transportation, you can get paid.