KOYO NK28/20A services Needle Non Thrust Roller Bearings

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KOYO NK28/20A services Needle Non Thrust Roller Bearings image

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KOYO NK28/20A services Needle Non Thrust Roller Bearings Code system

Bearing number:7308 BEGAP
Size (mm):90x40x23
Bore Diameter (mm):90
Outer Diameter (mm):40
Width (mm):23
d:40 mm
D:90 mm
B:23 mm
d1:59.7 mm
d2:49.55 mm
D1:71.6 mm
a:39 mm
r1,2 - min.:1.5 mm
r3,4 - min.:1 mm
da - min.:49 mm
Da - max.:81 mm
Db - max.:84.4 mm
ra - max.:1.5 mm
rb - max.:1 mm
Basic dynamic load rating - C:50 kN
Basic static load rating - C0:32.5 kN
Fatigue load limit - Pu:1.4 kN
Reference speed:10000 r/min
Limiting speed:10000 r/min
Calculation factor - kr:0.1
Calculation factor - ka:1.6
Calculation factor - e:1.14
Calculation factor - X:0.35
Calculation factor - Y0:0.26
Calculation factor - Y1:0.55
Calculation factor - Y2:0.57
Category:Angular Contact Ball Bearing
Inventory:0.0
Minimum Buy Quantity:N/A
Weight / Kilogram:0.61
Product Group:B00308
Enclosure:Open
Flush Ground:Yes
Rolling Element:Ball Bearing
Number of Rows of Balls:Single Row
Precision Class:ABEC 3 | ISO P6
Maximum Capacity / Filling Slot:No
Snap Ring:No
Cage Material:Polymer
Contact Angle:40 Degree
Internal Clearance:C0-Medium
Number of Bearings:1 (Single)
Preload:Light
Mounting Arrangement:Universal
Inch - Metric:Metric
Long Description:40MM Bore; 90MM Outside Diameter; 23MM Width; Open; Yes Flush Ground; Ball Bearing; Single Row of Balls; ABEC 3 | ISO P6; No Filling Slot; No Snap Ring
UNSPSC:31171531
Harmonized Tariff Code:8482.10.50.28
Noun:Bearing
Keyword String:Angular Contact
Manufacturer Item Number:7308 BEGAP
Weight / LBS:1.347
Bore:1.575 Inch | 40 Millimeter
Outside Diameter:3.543 Inch | 90 Millimeter
Width:0.906 Inch | 23 Millimeter
bore diameter::40 mm
radial static load capacity::32.5 kN
outside diameter::90 mm
cage material::Nylon
overall width::23 mm
outer ring width::23 mm
contact angle::40 °
maximum rpm::10000 RPM
row type & fill slot::Single-Row Non-Fill Slot
finish/coating::Uncoated
internal clearance::C0
precision rating::ABEC 3 (ISO Class 6)
closure type::Open
fillet radius::1.5 mm
radial dynamic load capacity::50 kN
series::73
d1 ≈:59.7 mm
d2 ≈:49.55 mm
D1 ≈:71.6 mm
r1,2 min.:1.5 mm
r3,4 min.:1 mm
da min.:49 mm
Da max.:81 mm
Db max.:84.4 mm
ra max.:1.5 mm
rb max.:1 mm
Basic dynamic load rating C:50 kN
Basic static load rating C0:32.5 kN
Fatigue load limit Pu:1.37 kN
Calculation factor A:0.0173
Calculation factor kr:0.1
Calculation factor e:1.14
Calculation factor X:0.57
Calculation factor Y0:0.52
Calculation factor Y2:0.93
Calculation factor Y1:0.55
Mass bearing:0.62 kg

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