Blind Wind-Out Bottom Bracket Bearing Puller

***  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) puller and our wind-out bottom bracket pullers.

• Like our expanding pullers, this tool doesn't need a recess behind the inner race of the bearing, it grips the inside of the bearing
• 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 bottom bracket designs where the lack of a recess behind the inner race of the bearing makes our usual wind-out puller unsuitable.

In most cases this tool is intended to remove the bearing from a BB, rather than BB cups from the frame.  However, the 'Shimano Pressfit' option can be used to withdraw the complete Shimano pressfit BB.

A flat area is needed around the outside of the bearing for the tool's 'cup' to rest on.  The cup will have an inside diameter of either 39mm or 44mm, depending on the size of tool ordered.  If there isn't a suitable surface for the cup to rest on (sometimes a problem for outboard style BB) then our tap-out type pullers would be a better option.

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
• 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.

How to Use

This tool is easy to use.  The method is illustrated on a freehub below, but the principal is the same for a BB.

Note that each tool is specific to one bearing size. It is designed to match the internal diameters and width of the bearing and can't be used on bearings of different size.

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:

Presses

We offer a comprehensive range of bearing presses, available in all of the same sizes and kits as our bearing pullers.  We offer 30% off every second item bought from our single tools menus, including mixes of pullers and presses

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.