MPNbase

NA-49-series

Model list for the NA-49-series needle roller bearings: bore, outer diameter and width with seal and clearance options. Open a model for full specs and verified equivalents.

39 models 10–140 mm bore range Full / partial / verify match grading

Model d (mm) D (mm) B (mm) Seal Clearance Cross refs
NA4900 10 22 13 open CN 0
NA4900-2RS 10 22 14 2RS CN 0
NA4901 12 24 13 open CN 0
NA4901-2RS 12 24 14 2RS CN 0
NA4902 15 28 13 open CN 0
NA4902-2RS 15 28 14 2RS CN 0
NA4903 17 30 13 open CN 0
NA4903-2RS 17 30 14 2RS CN 0
NA4904 20 37 17 open CN 0
NA4904-2RS 20 37 18 2RS CN 0
NA49-22 22 39 17 open CN 0
NA4905 25 42 17 open CN 0
NA4905-2RS 25 42 18 2RS CN 0
NA49-28 28 45 17 open CN 0
NA4906 30 47 17 open CN 0
NA4906-2RS 30 47 18 2RS CN 0
NA49-32 32 52 20 open CN 0
NA4907 35 55 20 open CN 1
NA4907-2RS 35 55 21 2RS CN 0
NA4908 40 62 22 open CN 0
NA4908-2RS 40 62 23 2RS CN 0
NA4909 45 68 22 open CN 0
NA4909-2RS 45 68 23 2RS CN 0
NA4910 50 72 22 open CN 0
NA4910-2RS 50 72 23 2RS CN 0
NA4911 55 80 25 open CN 0
NA4912 60 85 25 open CN 0
NA4913 65 90 25 open CN 1
NA4914 70 100 30 open CN 0
NA4915 75 105 30 open CN 0
NA4916 80 110 30 open CN 0
NA4917 85 120 35 open CN 0
NA4918 90 125 35 open CN 0
NA4919 95 130 35 open CN 0
NA4920 100 140 40 open CN 0
NA4922 110 150 40 open CN 0
NA4924 120 165 45 open CN 0
NA4926 130 180 50 open CN 0
NA4928 140 190 50 open CN 0