tapered roller thrust bearing 28579R/28521 KOYO - Kevin Global Machinery Parts Company

Kevin Global Machinery Parts Company: FULL COMPLEMENT TAPERED ROLLER THRUST BEARING SINGLE ROW TAPERED ROLLER BEARINGS INCH TAPERED ROLLER BEARINGS DOUBLE ROW TNA

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tapered roller thrust bearing 28579R/28521 KOYO Product identifiers

Bearing number:71917 ACD/P4A
Size (mm):120x85x18
Bore Diameter (mm):120
Outer Diameter (mm):85
Width (mm):18
d:85 mm
D:120 mm
B:18 mm
d1:95.8 mm
d2:95.8 mm
D1:109.2 mm
r1,2 - min.:1.1 mm
r3,4 - min.:0.6 mm
a:33 mm
da - min.:91 mm
db - min.:91 mm
Da - max.:114 mm
Db - max.:116 mm
ra - max.:1 mm
rb - max.:0.6 mm
dn:98.6 mm
Basic dynamic load rating - C:43.6 kN
Basic static load rating - C0:45.5 kN
Fatigue load limit - Pu:1.9 kN
Limiting speed for grease lubrication:9000 r/min
Limiting speed for oil lubrication:15000 mm/min
Ball - Dw:11.112 mm
Ball - z:25
Gref:7.2 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:270 N
Preload class B - GB:540 N
Preload class C - GC:1080 N
Preload class D - GD:2160 N
Calculation factor - f:1.2
Calculation factor - f1:0.98
Calculation factor - f2A:1
Calculation factor - f2B:1.04
Calculation factor - f2C:1.08
Calculation factor - f2D:1.14
Calculation factor - fHC:1
Preload class A:214 N/micron
Preload class B:281 N/micron
Preload class C:374 N/micron
Preload class D:509 N/micron
Category:Precision Ball Bearings
Inventory:0.0
Minimum Buy Quantity:N/A
Weight / Kilogram:0.57
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 | High Precision
Long Description:85MM Bore; 120MM Outside Diameter; 18MM 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 Ra
UNSPSC:31171531
Harmonized Tariff Code:8482.10.50.28
Noun:Bearing
Keyword String:Angular Contact Ball
Manufacturer Item Number:71917 ACD/P4A
Weight / LBS:1.246
Bore:3.346 Inch | 85 Millimeter
Width:0.709 Inch | 18 Millimeter
Outside Diameter:4.724 Inch | 120 Millimeter
r1,2 min.:1.1 mm
r3,4 min.:0.6 mm
da min.:91 mm
db min.:91 mm
Da max.:114 mm
Db max.:116 mm
ra max.:1 mm
rb max.:0.6 mm
Basic dynamic load rating C:43.6 kN
Basic static load rating C0:45.5 kN
Fatigue load limit Pu:1.93 kN
Attainable speed for grease lubrication:9000 r/min
Attainable speed for oil-air lubrication:15000 r/min
Ball diameter Dw:11.112 mm
Number of balls z:25
Reference grease quantity Gref:7.2 cm³
Preload class A GA:270 N
Static axial stiffness, preload class A:214 N/µm
Preload class B GB:540 N
Static axial stiffness, preload class B:281 N/µm
Preload class C GC:1080 N
Static axial stiffness, preload class C:374 N/µm
Preload class D GD:2160 N
Static axial stiffness, preload class D:509 N/µm
Calculation factor f:1.2
Calculation factor f1:0.98
Calculation factor f2A:1
Calculation factor f2B:1.04
Calculation factor f2C:1.08
Calculation factor f2D:1.14
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:0.53 kg

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