N23 KOYO Single-row cylindrical roller bearings
| Brand Name: |
KOYO |
| Model Number: |
N23 |
| d: |
20 mm |
| D: |
42 mm |
| B: |
12 mm |
| d1: |
26.6 mm |
| d2: |
24.8 mm |
| D1: |
34.21 mm |
| r1,2 min.: |
0.6 mm |
| r3,4 min.: |
0.3 mm |
Product Details
| d |
20 mm |
| D |
42 mm |
| B |
12 mm |
| d1 |
26.6 mm |
| d2 |
24.8 mm |
| D1 |
34.21 mm |
| r1,2 min. |
0.6 mm |
| r3,4 min. |
0.3 mm |
| a |
10.2 mm |
| da min. |
22 mm |
| db min. |
22 mm |
| Da max. |
40 mm |
| Db max. |
39.6 mm |
| ra max. |
0.6 mm |
| rb max. |
0.3 mm |
| Basic dynamic load rating C |
7.41 kN |
| Basic static load rating C0 |
3.35 kN |
| Fatigue load limit Pu |
0.143 kN |
| Attainable speed for grease lubrication |
54000 r/min |
| Ball diameter Dw |
6.35 mm |
| Number of balls z |
12 |
| Reference grease quantity Gref |
1.1 cm³ |
| Preload class A GA |
40 N |
| Static axial stiffness, preload class A |
21 N/µm |
| Preload class B GB |
120 N |
| Static axial stiffness, preload class B |
32 N/µm |
| Preload class C GC |
235 N |
| Static axial stiffness, preload class C |
44 N/µm |
| Calculation factor f |
1.04 |
| Calculation factor f1 |
1 |
| Calculation factor f2A |
1 |
| Calculation factor f2B |
1.03 |
| Calculation factor f2C |
1.05 |
| Calculation factor fHC |
1 |
| Calculation factor f0 |
7.2 |
| Mass bearing |
0.064 kg |