NTN MR7309 services Cylindrical Roller Bearings
| Brand Name |
NTN MR7309 services Cylindrical Roller Bearings |
| Model Number |
MR7309 |
| Min.Order Quantity |
1 pcs |
| Price |
Negotiable |
Product Details
| Bearing number |
7221 CD/P4A |
| Size (mm) |
190x105x36 |
| Bore Diameter (mm) |
190 |
| Outer Diameter (mm) |
105 |
| Width (mm) |
36 |
| d |
105 mm |
| D |
190 mm |
| B |
36 mm |
| d1 |
131.2 mm |
| d2 |
131.2 mm |
| D1 |
163.8 mm |
| r1,2 - min. |
2.1 mm |
| r3,4 - min. |
1.1 mm |
| a |
37.9 mm |
| da - min. |
117 mm |
| db - min. |
117 mm |
| Da - max. |
178 mm |
| Db - max. |
183 mm |
| ra - max. |
2 mm |
| rb - max. |
1 mm |
| dn |
138.4 mm |
| Basic dynamic load rating - C |
172 kN |
| Basic static load rating - C0 |
153 kN |
| Fatigue load limit - Pu |
5.3 kN |
| Limiting speed for grease lubrication |
7500 r/min |
| Limiting speed for oil lubrication |
12000 mm/min |
| Ball - Dw |
26.988 mm |
| Ball - z |
15 |
| Gref |
48.333 cm3 |
| Calculation factor - f0 |
14.5 |
| Preload class A - GA |
650 N |
| Preload class B - GB |
1300 N |
| Preload class C - GC |
2600 N |
| Preload class D - GD |
5200 N |
| Calculation factor - f |
1 |
| Calculation factor - f2A |
1 |
| Calculation factor - f2B |
1.01 |
| Calculation factor - f2C |
1.03 |
| Calculation factor - f2D |
1.05 |
| Calculation factor - fHC |
1 |
| Preload class A |
129 N/micron |
| Preload class B |
174 N/micron |
| Preload class C |
243 N/micron |
| Preload class D |
349 N/micron |
| Category |
Precision Ball Bearings |
| Inventory |
0.0 |
| Minimum Buy Quantity |
N/A |
| Product Group |
B04270 |
| Enclosure |
Open |
| Precision Class |
ABEC 7 | ISO P4 |
| Material - Ball |
Steel |
| Number of Bearings |
1 (Single) |
| Contact Angle |
15 Degree |
| Preload |
None |
| Raceway Style |
1 Rib Outer Ring |
| Cage Material |
Phenolic |
| Rolling Element |
Ball Bearing |
| Flush Ground |
No |
| Inch - Metric |
Metric |
| Other Features |
Single Row | Angular Contact | Super Precision | High Capacity Basic Design |
| Long Description |
105MM Bore; 190MM Outside Diameter; 36MM Width; Open Enclosure; ABEC 7 | ISO P4 Precision; Steel Ball Material; 1 (Single) Bearing; 15 Degree Contact Angle; Phenolic Cage Material; 1 Rib Outer Ring Ra |
| UNSPSC |
31171531 |
| Harmonized Tariff Code |
8482.10.50.28 |
| Noun |
Bearing |
| Keyword String |
Ball Angular Contact |
| Outside Diameter |
7.48 Inch | 190 Millimeter |
| Bore |
4.134 Inch | 105 Millimeter |
| Width |
1.417 Inch | 36 Millimeter |
| r1,2 min. |
2.1 mm |
| r3,4 min. |
1.1 mm |
| da min. |
117 mm |
| db min. |
117 mm |
| Da max. |
178 mm |
| Db max. |
183 mm |
| ra max. |
2 mm |
| rb max. |
1 mm |
| Basic dynamic load rating C |
172 kN |
| Basic static load rating C0 |
153 kN |
| Fatigue load limit Pu |
5.3 kN |
| Attainable speed for grease lubrication |
7500 r/min |
| Attainable speed for oil-air lubrication |
12000 r/min |
| Ball diameter Dw |
26.988 mm |
| Number of balls z |
15 |
| Reference grease quantity Gref |
48.333 cm³ |
| Preload class A GA |
650 N |
| Static axial stiffness, preload class A |
129 N/µm |
| Preload class B GB |
1300 N |
| Static axial stiffness, preload class B |
174 N/µm |
| Preload class C GC |
2600 N |
| Static axial stiffness, preload class C |
243 N/µm |
| Preload class D GD |
5200 N |
| Static axial stiffness, preload class D |
349 N/µm |
| Calculation factor f |
1.08 |
| Calculation factor f1 |
1 |
| Calculation factor f2A |
1 |
| Calculation factor f2B |
1.01 |
| Calculation factor f2C |
1.03 |
| Calculation factor f2D |
1.05 |
| Calculation factor fHC |
1 |
| Calculation factor f0 |
14.5 |
| Mass bearing |
3.87 kg |
Company Profile
| Worktime |
Seg - Sex (9.00 - 18.00) Sáb (9: 00-12: 00) |
| Phone |
(65) 8257 8518 |
| Fax |
(65) 6258 7399 |