Bearings by bore

55 mm bore bearings

Every standard bearing in this reference with a 55 mm (2.1654 in) bore, grouped by type and ordered from light to heavy sections.

Deep groove ball bearings

Deep groove ball55 mm

Designation	Bore d	Outside D	Width B
6011	55 mm	90 mm	18 mm
6211	55 mm	100 mm	21 mm
6311	55 mm	120 mm	29 mm
6411	55 mm	140 mm	33 mm
61811	55 mm	72 mm	9 mm
61911	55 mm	80 mm	13 mm
16011	55 mm	90 mm	11 mm

Self-aligning ball bearings

Designation	Bore d	Outside D	Width B
1211	55 mm	100 mm	21 mm
1311	55 mm	120 mm	29 mm
2211	55 mm	100 mm	25 mm
2311	55 mm	120 mm	43 mm

Angular contact ball bearings

Designation	Bore d	Outside D	Width B
7211	55 mm	100 mm	21 mm
7311	55 mm	120 mm	29 mm

Cylindrical roller bearings

Designation	Bore d	Outside D	Width B
NU211 / NJ211 / NUP211 / N211	55 mm	100 mm	21 mm
NU311 / NJ311 / NUP311 / N311	55 mm	120 mm	29 mm
NU2211 / NJ2211 / NUP2211	55 mm	100 mm	25 mm
NU2311 / NJ2311 / NUP2311	55 mm	120 mm	43 mm

Spherical roller bearings

Designation	Bore d	Outside D	Width B
22211	55 mm	100 mm	25 mm
22311	55 mm	120 mm	43 mm

Tapered roller bearings

Designation	Bore d	Outside D	Width T
30211	55 mm	100 mm	22.75 mm
30311	55 mm	120 mm	31.5 mm
32011X	55 mm	90 mm	23 mm
32211	55 mm	100 mm	26.75 mm
32311	55 mm	120 mm	45.5 mm

Thrust ball bearings

Designation	Bore d	Outside D	Height H
51111	55 mm	78 mm	16 mm
51211	55 mm	90 mm	25 mm
51311	55 mm	105 mm	35 mm

Pillow block bearing units

Unit	Shaft	Centre height H	Bolt spacing J
UCP211	55 mm	63.5 mm	171 mm

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