NN4900-series

Model list for the NN4900-series cylindrical roller bearings: bore, outer diameter and width with seal and clearance options. Open a model for full specs and verified equivalents.

36 models 100–320 mm bore range Full / partial / verify match grading

Model	d (mm)	D (mm)	B (mm)	Seal	Clearance	Cross refs
NN4920	100	140	40	open	CN	1
NN4920K	100	140	40	open	CN	1
NN4921	105	145	40	open	CN	1
NN4921K	105	145	40	open	CN	1
NN4922	110	150	40	open	CN	1
NN4922K	110	150	40	open	CN	1
NN4924	120	165	45	open	CN	1
NN4924K	120	165	45	open	CN	1
NN4926	130	180	50	open	CN	1
NN4926K	130	180	50	open	CN	1
NN4928	140	190	50	open	CN	1
NN4928K	140	190	50	open	CN	1
NN4930	150	210	60	open	CN	1
NN4930K	150	210	60	open	CN	1
NN4932	160	220	60	open	CN	1
NN4932K	160	220	60	open	CN	1
NN4934	170	230	60	open	CN	1
NN4934K	170	230	60	open	CN	1
NN4936	180	250	69	open	CN	1
NN4936K	180	250	69	open	CN	1
NN4938	190	260	69	open	CN	1
NN4938K	190	260	69	open	CN	1
NN4940	200	280	80	open	CN	1
NN4940K	200	280	80	open	CN	1
NN4944	220	300	80	open	CN	1
NN4944K	220	300	80	open	CN	1
NN4948	240	320	80	open	CN	1
NN4948K	240	320	80	open	CN	1
NN4952	260	360	100	open	CN	1
NN4952K	260	360	100	open	CN	1
NN4956	280	380	100	open	CN	1
NN4956K	280	380	100	open	CN	1
NN4960	300	420	118	open	CN	1
NN4960K	300	420	118	open	CN	1
NN4964	320	440	118	open	CN	1
NN4964K	320	440	118	open	CN	1