Bearing number | 7205 ACD/P4A |
Size (mm) | 52x25x15 |
Bore Diameter (mm) | 52 |
Outer Diameter (mm) | 25 |
Width (mm) | 15 |
d | 25 mm |
D | 52 mm |
B | 15 mm |
d1 | 34.1 mm |
d2 | 34.1 mm |
D1 | 43.7 mm |
r1,2 - min. | 1 mm |
r3,4 - min. | 0.3 mm |
a | 16.7 mm |
da - min. | 30.6 mm |
db - min. | 30.6 mm |
Da - max. | 46.4 mm |
Db - max. | 49.6 mm |
ra - max. | 1 mm |
rb - max. | 0.3 mm |
dn | 36.1 mm |
Basic dynamic load rating - C | 13 kN |
Basic static load rating - C0 | 7 kN |
Fatigue load limit - Pu | 0.29 kN |
Limiting speed for grease lubrication | 26000 r/min |
Limiting speed for oil lubrication | 40000 mm/min |
Ball - Dw | 7.938 mm |
Ball - z | 13 |
Gref | 1.872 cm3 |
Calculation factor - e | 0.68 |
Calculation factor - Y2 | 1.41 |
Calculation factor - Y0 | 0.76 |
Calculation factor - X2 | 0.67 |
Calculation factor - Y1 | 0.92 |
Preload class A - GA | 80 N |
Preload class B - GB | 160 N |
Preload class C - GC | 320 N |
Preload class D - GD | 640 N |
Calculation factor - f | 1.03 |
Calculation factor - f1 | 0.99 |
Calculation factor - f2A | 1 |
Calculation factor - f2B | 1.01 |
Calculation factor - f2C | 1.02 |
Calculation factor - f2D | 1.05 |
Calculation factor - fHC | 1 |
Preload class A | 71 N/micron |
Preload class B | 92 N/micron |
Preload class C | 119 N/micron |
Preload class D | 158 N/micron |
Category | Precision Ball Bearings |
Inventory | 0.0 |
Minimum Buy Quantity | N/A |
Weight / Kilogram | 0.14 |
Product Group | B04270 |
Enclosure | Open |
Precision Class | ABEC 7 | ISO P4 |
Material - Ball | Steel |
Number of Bearings | 1 (Single) |
Contact Angle | 25 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 |
Long Description | 25MM Bore; 52MM Outside Diameter; 15MM Width; Open Enclosure; ABEC 7 | ISO P4 Precision; Steel Ball Material; 1 (Single) Bearings; 25 Degree Contact Angle; Phenolic Cage Material; 1 Rib Outer Ring Rac |
UNSPSC | 31171531 |
Harmonized Tariff Code | 8482.10.50.28 |
Noun | Bearing |
Keyword String | Angular Contact Ball |
Manufacturer Item Number | 7205 ACD/P4A |
Weight / LBS | 0.298 |
Width | 0.591 Inch | 15 Millimeter |
Outside Diameter | 2.047 Inch | 52 Millimeter |
Bore | 0.984 Inch | 25 Millimeter |
r1,2 min. | 1 mm |
r3,4 min. | 0.3 mm |
da min. | 30.6 mm |
db min. | 30.6 mm |
Da max. | 46.4 mm |
Db max. | 49.6 mm |
ra max. | 1 mm |
rb max. | 0.3 mm |
Basic dynamic load rating C | 13 kN |
Basic static load rating C0 | 6.95 kN |
Fatigue load limit Pu | 0.29 kN |
Attainable speed for grease lubrication | 26000 r/min |
Attainable speed for oil-air lubrication | 40000 r/min |
Ball diameter Dw | 7.938 mm |
Number of balls z | 13 |
Reference grease quantity Gref | 1.872 cm³ |
Preload class A GA | 80 N |
Static axial stiffness, preload class A | 71 N/µm |
Preload class B GB | 160 N |
Static axial stiffness, preload class B | 92 N/µm |
Preload class C GC | 320 N |
Static axial stiffness, preload class C | 119 N/µm |
Preload class D GD | 640 N |
Static axial stiffness, preload class D | 158 N/µm |
Calculation factor f | 1.03 |
Calculation factor f1 | 0.99 |
Calculation factor f2A | 1 |
Calculation factor f2B | 1.01 |
Calculation factor f2C | 1.02 |
Calculation factor f2D | 1.05 |
Calculation factor fHC | 1 |
Calculation factor e | 0.68 |
Calculation factor (single, tandem) Y2 | 0.87 |
Calculation factor (single, tandem) Y0 | 0.38 |
Calculation factor (single, tandem) X2 | 0.41 |
Calculation factor (back-to-back, face-to-face) Y1 | 0.92 |
Calculation factor (back-to-back, face-to-face) Y2 | 1.41 |
Calculation factor (back-to-back, face-to-face) Y0 | 0.76 |
Calculation factor (back-to-back, face-to-face) X2 | 0.67 |
Mass bearing | 0.13 kg |