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X2-123 Spindle Bearings

X2 Spindle Bearings
Spindle Taper Bottom Bearing Top Bearing
MT3 6206-ZZ - 30x62x16mm
R8 6007-2RS - 35x62x14mm 6206-ZZ - 30x62x16mm
These are standard deep groove ball bearings.
ZZ= 2 metal shields. 2RS= 2 rubber seals.

For MT3 spindles, 7206B-2RS angular contact ball bearings are a better alternative for the top and bottom bearings. They are specifically designed to accept a pre-load, resulting in better spindle accuracy. They also have rubber seals (2RS), ensuring better protection against contamination, when compared with open or metal shielded bearings.

7206-B-2RS Spindle Bearing Angular Contact Ball Bearing

See a copy of Neil Wyatt's article Improvements to an X2 Mill where he upgraded his X2 Mill MT3 spindle with 7206B Angular Contact Ball Bearings (from Model Engineers' Workshop issue 201).

X2-123-MT3 6206 ZZ Spindle Ball Bearing (MT3) - 30x62x16mm £4.48 Excl.VAT
£5.38 Inc.VAT
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X2-123-MT3-AC 7206 B 2RS Spindle Angular Contact Bearing (MT3) 30x62x16mm £7.72 Excl.VAT
£9.26 Inc.VAT
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X2-123-R8-T 6206 ZZ Top Spindle Bearing (R8) - 30x62x16mm £4.48 Excl.VAT
£5.38 Inc.VAT
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X2-123-R8-B 6007 2RS Bottom Spindle Bearing (R8) - 35x62x14mm £4.63 Excl.VAT
£5.56 Inc.VAT
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