30306JR Bearing 30x72x19mm - Pioneer Machinery Source

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30306JR Bearing 30x72x19mm image

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Types of OIL MACHINERY BEARINGS

Bearing number:7204 ACD/P4A
Size (mm):47x20x14
Bore Diameter (mm):47
Outer Diameter (mm):20
Width (mm):14
d:20 mm
D:47 mm
B:14 mm
d1:29.1 mm
d2:29.1 mm
D1:38.7 mm
r1,2 - min.:1 mm
r3,4 - min.:0.3 mm
a:15 mm
da - min.:25.6 mm
db - min.:25.6 mm
Da - max.:41.4 mm
Db - max.:44.6 mm
ra - max.:1 mm
rb - max.:0.3 mm
dn:31.1 mm
Basic dynamic load rating - C:11.4 kN
Basic static load rating - C0:5.6 kN
Fatigue load limit - Pu:0.236 kN
Limiting speed for grease lubrication:32000 r/min
Limiting speed for oil lubrication:48000 mm/min
Ball - Dw:7.938 mm
Ball - z:11
Gref:1.539 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:70 N
Preload class B - GB:140 N
Preload class C - GC:280 N
Preload class D - GD:560 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:61 N/micron
Preload class B:79 N/micron
Preload class C:102 N/micron
Preload class D:135 N/micron
Category:Precision Ball Bearings
Inventory:0.0
Minimum Buy Quantity:N/A
Weight / Kilogram:0
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 Basic Design
Long Description:20MM Bore; 47MM Outside Diameter; 14MM Width; Open Enclosure; ABEC 7 | ISO P4 Precision; Steel Ball Material; 1 (Single) Bearing; 25 Degree Contact Angle; Phenolic Cage Material; 1 Rib Outer Ring Race
UNSPSC:31171531
Harmonized Tariff Code:8482.10.50.28
Noun:Bearing
Keyword String:Ball Angular Contact
Manufacturer Item Number:7204 ACD/P4A
Weight / LBS:0.238
Bore:0.787 Inch | 20 Millimeter
Outside Diameter:1.85 Inch | 47 Millimeter
Width:0.551 Inch | 14 Millimeter
r1,2 min.:1 mm
r3,4 min.:0.3 mm
da min.:25.6 mm
db min.:25.6 mm
Da max.:41.4 mm
Db max.:44.6 mm
ra max.:1 mm
rb max.:0.3 mm
Basic dynamic load rating C:11.4 kN
Basic static load rating C0:5.6 kN
Fatigue load limit Pu:0.236 kN
Attainable speed for grease lubrication:32000 r/min
Attainable speed for oil-air lubrication:48000 r/min
Ball diameter Dw:7.938 mm
Number of balls z:11
Reference grease quantity Gref:1.539 cm³
Preload class A GA:70 N
Static axial stiffness, preload class A:61 N/µm
Preload class B GB:140 N
Static axial stiffness, preload class B:79 N/µm
Preload class C GC:280 N
Static axial stiffness, preload class C:102 N/µm
Preload class D GD:560 N
Static axial stiffness, preload class D:135 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:0.1 kg

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