Bearing 238/500K
Manufacturers of all Spherical Roller Bearings NTN are represented in our partial Bearing Wholesalers 68x40x15 list of clients. 68 Bore Diameter (mm) Contact Gary for a complete Bearing 238/500K list of clients and projects.
| Bearing number: |
7008 CD/HCP4A |
| Size (mm): |
68x40x15 |
| Bore Diameter (mm): |
68 |
| Outer Diameter (mm): |
40 |
| Width (mm): |
15 |
| d: |
40 mm |
| D: |
68 mm |
| B: |
15 mm |
Product Details
| Bearing number |
7008 CD/HCP4A |
| Size (mm) |
68x40x15 |
| Bore Diameter (mm) |
68 |
| Outer Diameter (mm) |
40 |
| Width (mm) |
15 |
| d |
40 mm |
| D |
68 mm |
| B |
15 mm |
| d1 |
49.2 mm |
| d2 |
49.2 mm |
| D1 |
58.8 mm |
| r1,2 - min. |
1 mm |
| r3,4 - min. |
0.3 mm |
| a |
14.8 mm |
| da - min. |
44.6 mm |
| db - min. |
44.6 mm |
| Da - max. |
63.4 mm |
| Db - max. |
66 mm |
| ra - max. |
1 mm |
| rb - max. |
0.3 mm |
| dn |
50.8 mm |
| Basic dynamic load rating - C |
16.8 kN |
| Basic static load rating - C0 |
11 kN |
| Fatigue load limit - Pu |
0.465 kN |
| Limiting speed for grease lubrication |
24000 r/min |
| Limiting speed for oil lubrication |
38000 mm/min |
| Ball - Dw |
7.938 mm |
| Ball - z |
18 |
| Gref |
2.4 cm3 |
| Calculation factor - f0 |
10 |
| Preload class A - GA |
60 N |
| Preload class B - GB |
120 N |
| Preload class C - GC |
240 N |
| Preload class D - GD |
480 N |
| Calculation factor - f |
1 |
| Calculation factor - f2A |
1 |
| Calculation factor - f2B |
1.02 |
| Calculation factor - f2C |
1.05 |
| Calculation factor - f2D |
1.09 |
| Calculation factor - fHC |
1.02 |
| Preload class A |
42 N/micron |
| Preload class B |
56 N/micron |
| Preload class C |
76 N/micron |
| Preload class D |
107 N/micron |
| Category |
Precision Ball Bearings |
| Inventory |
0.0 |
| Minimum Buy Quantity |
N/A |
| Weight / Kilogram |
0.183 |
| Product Group |
B04270 |
| Enclosure |
Open |
| Precision Class |
ABEC 7 | ISO P4 |
| Material - Ball |
Ceramic |
| 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 | High Precision | Hybrid | Corrosion Resistant Ball |
| Long Description |
40MM Bore; 68MM Outside Diameter; 15MM Width; Open Enclosure; ABEC 7 | ISO P4 Precision; Ceramic Ball Material; 1 (Single) Bearings; 15 Degree Contact Angle; Phenolic Cage Material; 1 Rib Outer Ring R |
| UNSPSC |
31171531 |
| Harmonized Tariff Code |
8482.10.50.28 |
| Noun |
Bearing |
| Keyword String |
Angular Contact Ball |
| Manufacturer Item Number |
7008 CD/HCP4A |
| Weight / LBS |
0.399 |
| Bore |
1.575 Inch | 40 Millimeter |
| Width |
0.591 Inch | 15 Millimeter |
| Outside Diameter |
2.677 Inch | 68 Millimeter |
| r1,2 min. |
1 mm |
| r3,4 min. |
0.3 mm |
| da min. |
44.6 mm |
| db min. |
44.6 mm |
| Da max. |
63.4 mm |
| Db max. |
66 mm |
| ra max. |
1 mm |
| rb max. |
0.3 mm |
| Basic dynamic load rating C |
16.8 kN |
| Basic static load rating C0 |
11 kN |
| Fatigue load limit Pu |
0.465 kN |
| Attainable speed for grease lubrication |
24000 r/min |
| Attainable speed for oil-air lubrication |
38000 r/min |
| Ball diameter Dw |
7.938 mm |
| Number of balls z |
18 |
| Reference grease quantity Gref |
2.4 cm³ |
| Preload class A GA |
60 N |
| Static axial stiffness, preload class A |
42 N/µm |
| Preload class B GB |
120 N |
| Static axial stiffness, preload class B |
56 N/µm |
| Preload class C GC |
240 N |
| Static axial stiffness, preload class C |
76 N/µm |
| Preload class D GD |
480 N |
| Static axial stiffness, preload class D |
107 N/µm |
| Calculation factor f |
1.06 |
| Calculation factor f1 |
1 |
| Calculation factor f2A |
1 |
| Calculation factor f2B |
1.02 |
| Calculation factor f2C |
1.05 |
| Calculation factor f2D |
1.09 |
| Calculation factor fHC |
1.02 |
| Calculation factor f0 |
10 |
| Mass bearing |
0.17 kg |
Company Profile
| Worktime |
9: 00-18: 00 (بتوقيت بكين) |
| Phone |
+6531591338 |
| Fax |
+6531591338 |