CYLINDRICAL ROLLER BEARINGS ONE-ROW METRIC ISO SERIES NU
B
r1s min
rs min r1s min
rs min
ds
F Ds
D
d
rs min D
N
B
B
rs min
rs min
E Ds
N
ds
F Ds
D
d
ds
E Ds
NF NF
NJ
N
r1s min rs min
r1s min
ds
d
rs min
Mounting Data Bearing Dimensions B
rs min
Bore rs min O.D. d D mm in.
r1s min
ds
F Ds
r1s min
rs min
Load Rating
Width B
DUR/DOR F/E
Static Co
Dynamic C1(1)
in.
mm in.
kN lbf.
kN lbf.
rs min r mm s min
mm in.
B
150.000 5.9055 D d
225.000 D d 35.000 8.8583 1.3780
150.000 5.9055
270.000 10.6299
150.000 5.9055
270.000 10.6299
r1s min
s(3)
Shaft Housing ds Ds
rsmin
r1smin
mm in.
mm in.
mm in.
mm in.
mm in.
2.1 ds 0.08
1.5 E 0.06
164.6 6.48
205.5 8.09
4.9 0.19
rs min
dNU1030MA
Backing Diameter
r1sChamfer min
Geo- Thermal Speed Ratings metry Weight Factor Cg Oil Grease kg lbs.
RPM
RPM
0.115
3100
2500
4.90 10.80
169.500
309 ds F 69500
45.000 1.7717
182.000 7.1654
607 137000
506 114000
NU230EMA
3.0 0.12
3.0 0.12
176.9 6.96
242.0 9.53
4.0 0.16
0.109
2600
2300
11.60 25.60
45.000 1.7717
182.000 7.1654
607 137000
506 114000
NJ230EMA
3.0 0.12
3.0 0.12
176.9 6.96
242.0 9.53
4.0 0.16
0.109
2600
2300
12.00 26.30
150.000 5.9055
270.000 45.000 10.6299NF 1.7717
NUP 182.000
607 137000
506 114000
NUP230EMA NP
3.0 0.12
3.0 0.12
176.9 6.96
242.0 9.53
–
0.109
2600
2300
12.10 26.60
150.000 5.9055
270.000 10.6299
B 182.000 998 7.1654 r1s min 224000
752 169000
NU2230EMA
3.0 0.12
3.0 0.12
173.5 6.83
242.0 9.53
6.0 0.24
0.123
2000
1800
18.60 40.90
r1s min 182.000 73.000 998 2.8740 7.1654 rs min224000
752 169000
NJ2230EMA
3.0 0.12
3.0 0.12
173.5 6.83
242.0 9.53
6.0 0.24
0.123
2000
1800
18.90 41.36
73.000 242.000 r 2.8740s min 9.5276
998 224000
752 169000
N2230EMB
3.0 0.12
3.0 0.12
182.0 7.17
250.5 9.86
6.0 0.24
0.123
2000
1800
18.40 40.40
65.000 2.5591
193.000 7.5984
951 214000
870 196000
NU330EMA
4.0 0.16
4.0 0.16
185.7 7.31
283.0 11.14
4.0 0.16
0.120
2100
1900
26.20 57.70
73.000
C
r2.8740 s min
E Ds ds 6.6732
7.1654
Ds
231 51900
Bearing (2) s min PartrNumber
C
D
–
rs min
150.000 270.000 5.9055 rs min10.6299
r1s min
150.000 5.9055
270.000 10.6299
150.000 5.9055
320.000 12.5984
150.000 5.9055
320.000 12.5984
65.000 2.5591
193.000 7.5984
951 214000
870 196000
NJ330EMA
4.0 0.16
4.0 0.16
185.7 7.31
283.0 11.14
4.0 0.16
0.120
2100
1900
26.70 58.80
150.000 5.9055
320.000 12.5984
108.000 4.2520
193.000 7.5984
1620 364000
1330 299000
NU2330EMA
4.0 0.16
4.0 0.16
182.7 7.19
283.0 11.14
9.0 0.35
0.136
1600
1400
43.60 95.80
150.000 5.9055
320.000 108.000 12.5984NP 4.2520
193.000 7.5984
1620 364000
1330 299000
NJ2330EMA
4.0 0.16
4.0 0.16
182.7 7.19
283.0 11.14
9.0 0.35
0.136
1600
1400
44.40 97.70
160.000 6.2992
240.000 9.4488
38.000 1.4961
180.000 7.0866
367 82500
276 62000
NU1032MA
2.1 0.08
1.5 0.06
173.9 6.85
220.0 8.66
4.4 0.17
0.121
3000
2400
5.90 13.00
160.000 6.2992
290.000 11.4173
48.000 1.8898
195.000 7.6772
695 156000
572 129000
NU232EMA
3.0 0.12
3.0 0.12
189.6 7.46
259.0 10.20
4.2 0.17
0.115
2400
2100
14.50 31.80
160.000 6.2992
290.000 11.4173
48.000 1.8898
195.000 7.6772
695 156000
572 129000
NJ232EMA
3.0 0.12
3.0 0.12
189.6 7.46
259.0 10.20
4.2 0.17
0.115
2400
2100
14.70 32.40
160.000 6.2992
290.000 11.4173
48.000 1.8898
195.000 7.6772
695 156000
572 129000
NUP232EMA
3.0 0.12
3.0 0.12
189.6 7.46
259.0 10.20
–
0.115
2400
2100
15.00 33.00
ds F Ds
r1s min rs min
F
E Ds
D
d
D
d
ds
E
NJF
F
E Ds
(1)Based on 1 x 106 revolutions L life, for the ISO life calculation method. 10 (2)The radial internal clearance (RIC) for the bearing assembly must be included when ordering the complete assembly.
–
Continued on next page.
(3)Permissible axial displacement from normal position of one bearing ring in relation to the other.
TIMKEN CYLINDRICAL ROLLER BEARING CATALOG
63