Wind-Out Blind Bearing Puller for Bikes

***  Buy one, get one 30% off any mix of pullers and presses (applies to individual tools only, not kits) ***

This bearing puller is a blend of our expanding (blind) pullers and our wind-out pullers.

• Like our expanding pullers, this tool can remove blind and back-to-back bearings. 
• Like our windout puller, this tool doesn't need a hammer, instead, tightening the nut draws the bearing into a cup in a controlled manner.

This tool is suitable for many frame and hub applications where back-to-back bearings make our usual wind-out puller unsuitable.

Note however that this tool requires a flat surface around the outside of the bearing for the tool's cup to rest on.  See notes on Compatibility below.

V2 Expanding Pullers

Our blind wind-out pullers now use our V2 expanding puller design.  The V2 tool includes several important improvements:

• Grip has been greatly increased by including a ridge at the end of the tool to engauge with the chamfer on the inside diameter of the bearing
• Tool durability has been increased by machining all sizes from 303 stainless steel
• The force required to tighten the tool has been reduced by refinding the tool profile

All of our tools are designed and precision machined by ourselves, here in the UK, and shipped internationally.

Compatibility

A flat area is needed around the outside of the bearing for the tool's 'cup' to rest on.  The OD of the cup generally extends 5mm out from the edge of the bearing.  If anything protrudes within this zone our expanding pullers would be a better option.

A hole is needed through to the otherside of the part, through which a hex key can be inserted.  Through holes nearly always exist on back-to-back bearings on bicycles, but not in some less common applications, like motor cases.

How to Use

This tool is easy to use.  The method is illustrated on a freehub below.

First, the expanding collet is inserted into the bearing and the nut tightened, causing the collet to grip the inside of the bearing:

Next, the 'cup' part of the tool is placed over the collet and a nut screwed onto the end of the threaded rod.

By inserting a hex key the expanding collet can be prevented from turning while tightening the nut with a spanner.  Tightening the nut draws the expanding collet into the cup:

Our tools can be selected either by the bearing's dimensions or by the bearing's standard reference code.

Standard references take the form of a three to five digit number, such as 688, or 6902 for example.  These codes are often provided in the bike's user manuals, or moulded onto the bearing's seal. You might see something like 6902-2RS on the seal. The first digits are the standard reference.  The second part (2RS in this case) refers to the seal type and doesn't matter for tool selection.

While the letter & numbers after the baring ref usually refer to the type of seal, you should keep an eye out for the suffix 'E', for example 698-E.  This denotes that the inner race of the bearing is extended, which will affect puller and press selection. 

Alternatively, tools can be selected by their inside (ID) and outside (OD) diameters and width (W). 

Note that each tool is specific to one bearing size and can’t be used on bearings with different dimensions.

If you need any help then please feel free to email us!  We usually reply within 1 working day.