Sturmey Archer Ball Cage NIG - HSA438

£6.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
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Questions & Answers (4) Q & A
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Questions & Answers (4)
ball diameter
24 Sep 2020
Hi, is the diameter of the ball same as one from HSA284 ? 6.4 mm


SRAM Automatix hub
18 Feb 2020
I bought a hub on eBay. A bit rough. One ball cage could do with replacing. The balls seem to be 3/16". The cage is about 41mm between the ball centresand across the inside of the ring, 45mm OD.
Hi the ball centres are 33mm and the out side diameter is 42mm - to small for your application unfortunately. Thanks
... and for a Brompton SA 3-Speed hub, are the left- and right-hand bearings identical?
20 Oct 2019
The left is HSA284 and the right is HSA438. Inside the driver it also has a HSA284.

Thanks - 21/05/19
Are these the correct bearings for a SA 3-Speed hub fitted to Bromptons (mine is a 2018 build)?
20 Oct 2019
Yes, for the ball ring.

Sturmey Archer Ball Cage LH 6.4mm - HSA284
Sturmey Archer Ball Cage - HSA438
Driver - Sturmey Archer Ball Cage LH 6.4mm - HSA284

Thanks - 21/10/19