7415-B-MP top 5 Latest High Precision Bearings
| Bearing number: |
NRT 120 B |
| Size (mm): |
120x210x40 |
| Bore Diameter (mm): |
120 |
| Outer Diameter (mm): |
210 |
| Width (mm): |
40 |
| d: |
120 mm |
| D: |
210 mm |
| H: |
7 mm |
Product Details
| Bearing number |
NRT 120 B |
| Size (mm) |
120x210x40 |
| Bore Diameter (mm) |
120 |
| Outer Diameter (mm) |
210 |
| Width (mm) |
40 |
| d |
120 mm |
| D |
210 mm |
| H |
7 mm |
| d1 |
184 mm |
| C |
12 mm |
| H1 |
26 mm |
| J |
135 mm |
| J1 |
195 mm |
| N1 |
11 mm |
| N2 |
7 mm |
| a |
6.2 mm |
| r1 - min. |
0.6 mm |
| r2 - min. |
0.3 mm |
| Basic dynamic load rating, radial direction - C |
64.4 kN |
| Basic static load rating, radial direction - C0 |
140 kN |
| Basic dynamic load rating, axial direction - C |
72 kN |
| Basic static load rating, axial direction - C0 |
450 kN |
| Limiting speed for grease lubrication |
230 r/min |
| Limiting speed for oil lubrication |
460 mm/min |
| Axial Preload |
2 N |
| Axial unloading force |
4.4 kN |
| Frictional moment - CRL |
6 N·m |
| axial stiffness |
8.5 N/micron |
| radial stiffness |
4.5 N/micron |
| Moment stiffness |
23000 kN·m/mrad |
| Mass bearing |
4.8 kg |
| Guideline diameter |
315 mm |
| Size - G |
M8 |
| Number of bolts |
22 |
| Angle between bolts |
120 ° |
| Size bolts |
M6 |
| Pitch - &alfa; |
15 ° |
| Number of bolts omitted at removal thread position |
3, 120° apart |
| Number of bolts omitted at retaining bolts position |
2, 180° apart |
| Tightening torque |
14 N·m |
| Size |
M6 |
| N |
7 mm |
| r1 min. |
0.6 mm |
| r2 min. |
0.3 mm |
| Basic dynamic load rating - radial direction C |
64.4 kN |
| Basic static load rating - radial direction C0 |
140 kN |
| Basic dynamic load rating - axial direction C |
72 kN |
| Basic static load rating - axial direction C0 |
450 kN |
| Attainable speed for grease lubrication |
230 r/min |
| Attainable speed for oil-air lubrication |
460 r/min |
| Axial preload |
2 kN |
| Frictional moment CRL |
6 N·m |
| Axial stiffness |
8.5 kN/µm |
| Radial stiffness |
4.5 kN/µm |
| Guideline rotary table diameter |
315 mm |
| Size G |
M8 |
| Number of threads |
3 |
| Angle between threads |
120 ° |
| Bolt size |
M6 |
| Pitch α |
15 ° |
| Tightening torque (Bolt grade 10.9) |
14 N·m |
Company Profile
| Worktime |
9.00--18.00 |
| Phone |
0065-31591338 |
| Fax |
0065-31591338 |