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Self-Aligning Ball Bearings 1213 SNR image

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SELF ALIGNING BALL BEARINGS Cross References

Bearing number:71910 CD/P4A
Size (mm):72x50x12
Bore Diameter (mm):72
Outer Diameter (mm):50
Width (mm):12
d:50 mm
D:72 mm
B:12 mm
d1:57.1 mm
d2:57.1 mm
D1:64.9 mm
r1,2 - min.:0.6 mm
r3,4 - min.:0.3 mm
a:14.2 mm
da - min.:53.2 mm
db - min.:53.2 mm
Da - max.:68.8 mm
Db - max.:70.6 mm
ra - max.:0.6 mm
rb - max.:0.3 mm
dn:58.7 mm
Basic dynamic load rating - C:13.5 kN
Basic static load rating - C0:10.4 kN
Fatigue load limit - Pu:0.44 kN
Limiting speed for grease lubrication:17000 r/min
Limiting speed for oil lubrication:28000 mm/min
Ball - Dw:6.35 mm
Ball - z:25
Gref:1.74 cm3
Calculation factor - f0:10.7
Preload class A - GA:50 N
Preload class B - GB:100 N
Preload class C - GC:200 N
Preload class D - GD:400 N
Calculation factor - f:1
Calculation factor - f2A:1
Calculation factor - f2B:1.04
Calculation factor - f2C:1.09
Calculation factor - f2D:1.15
Calculation factor - fHC:1
Preload class A:43 N/micron
Preload class B:57 N/micron
Preload class C:78 N/micron
Preload class D:110 N/micron
Category:Precision Ball Bearings
Inventory:0.0
Minimum Buy Quantity:N/A
Weight / Kilogram:0.133
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 | High Capacity Basic Design
Long Description:50MM Bore; 72MM Outside Diameter; 12MM 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 Race
UNSPSC:31171531
Harmonized Tariff Code:8482.10.50.28
Noun:Bearing
Keyword String:Ball Angular Contact
Width:0.472 Inch | 12 Millimeter
Outside Diameter:2.835 Inch | 72 Millimeter
Bore:1.969 Inch | 50 Millimeter
r1,2 min.:0.6 mm
r3,4 min.:0.3 mm
da min.:53.2 mm
db min.:53.2 mm
Da max.:68.8 mm
Db max.:70.6 mm
ra max.:0.6 mm
rb max.:0.3 mm
Basic dynamic load rating C:13.5 kN
Basic static load rating C0:10.4 kN
Fatigue load limit Pu:0.44 kN
Attainable speed for grease lubrication:17000 r/min
Attainable speed for oil-air lubrication:28000 r/min
Ball diameter Dw:6.35 mm
Number of balls z:25
Reference grease quantity Gref:1.74 cm³
Preload class A GA:50 N
Static axial stiffness, preload class A:43 N/µm
Preload class B GB:100 N
Static axial stiffness, preload class B:57 N/µm
Preload class C GC:200 N
Static axial stiffness, preload class C:78 N/µm
Preload class D GD:400 N
Static axial stiffness, preload class D:110 N/µm
Calculation factor f:1.13
Calculation factor f1:1
Calculation factor f2A:1
Calculation factor f2B:1.04
Calculation factor f2C:1.09
Calculation factor f2D:1.15
Calculation factor fHC:1
Calculation factor f0:10.7
Mass bearing:0.13 kg

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