KOYO NRO.B2,5X17,8G2 Roller Bearings
| Bearing number: |
HR303/28 |
| Size (mm): |
28x68x19.75 |
| Bore Diameter (mm): |
28 |
| Outer Diameter (mm): |
68 |
| Width (mm): |
19,75 |
| d: |
28 mm |
| D: |
68 mm |
| T: |
19,75 mm |
Product Details
| Bearing number |
HR303/28 |
| Size (mm) |
28x68x19.75 |
| Bore Diameter (mm) |
28 |
| Outer Diameter (mm) |
68 |
| Width (mm) |
19,75 |
| d |
28 mm |
| D |
68 mm |
| T |
19,75 mm |
| B |
18 mm |
| C |
15 mm |
| a |
14,5 mm |
| r min. |
1,5 mm |
| r1 min. |
1,5 mm |
| da min. |
39 mm |
| Da min |
58 mm |
| Da max. |
59 mm |
| db max. |
37 mm |
| Db min. |
61 mm |
| ra max. |
1,5 mm |
| rb max. |
1,5 mm |
| Weight |
0,341 Kg |
| Basic dynamic load rating (C) |
55 kN |
| Basic static load rating (C0) |
55,5 kN |
| (Grease) Lubrication Speed |
6000 r/min |
| (Oil) Lubrication Speed |
8000 r/min |
| Calculation factor (e) |
0,31 |
| Calculation factor (Y0) |
1,1 |
| LangID |
1 |
| outer r |
1.5 |
| D_ |
68 |
| TC-BET21 |
4 |
| inner r |
1.5 |
| mass |
0.341 |
| GRS rpm |
6000 |
| D_b |
61 |
| Cr |
5650 |
| TC-RA |
150 |
| DE_ |
57.696 |
| db |
37 |
| T-ALP22 |
20 |
| Prod_Type3 |
TRBSR_MD_A |
| da |
39 |
| T-ALP21 |
23 |
| Iso |
- |
| ALPHA_ |
11.667 |
| SDM_ |
48.002 |
| SBRG |
3 |
| D_a2 |
58 |
| hidYobi |
HR303/28 |
| Y1 |
1.9 |
| D_a1 |
59 |
| B_ |
18 |
| hidTable |
ecat_NSTPRM |
| Oil rpm |
8000 |
| C0r |
5650 |
| Y0 |
1.1 |
| TC-SLR |
12.7 |
| inner ra |
1.5 |
| outer rb |
1.5 |
| C0 |
55.5 |
| Sa |
2 |
| Sb |
4.5 |
| e |
0.31 |
| DA_ |
10.029 |
| Z_ |
14 |
| C_ |
15 |
| yobi |
HR303/28 |
| TC-DA1 |
10.469 |
| TC-DA2 |
9.589 |
| KBRG |
3111 |
| DI_ |
38.307 |
Company Profile
| Worktime |
9.00--18.00 |
| Phone |
0065-31591338 |
| Fax |
0065-31591338 |