NTN 23124BD1 Spherical Roller Bearings - Kate Komatsu part Machinery Co., Ltd

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NTN 23124BD1 Spherical Roller Bearings image

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NTN 23124BD1 Spherical Roller Bearings Code system

Bearing number:7210 ACD/P4A
Size (mm):50x90x20
Bore Diameter (mm):50
Outer Diameter (mm):90
Width (mm):20
d:50 mm
D:90 mm
B:20 mm
C:20 mm
d1:62.3 mm
d2:62.3 mm
r1 min.:1,1 mm
r2 min.:1,1 mm
r3 min.:0,6 mm
r4 min.:0,6 mm
D1:77.7 mm
D2:80,7 mm
da min.:57 mm
Da max.:83 mm
db min:57 mm
ra max.:1 mm
rb max.:0.6 mm
dh:65,6 mm
Db max:85,8 mm
Weight:0,46 Kg
Basic dynamic load rating (C):42,3 kN
Basic static load rating (C0):32,5 kN
(Grease) Lubrication Speed:14 000 r/min
(Oil) Lubrication Speed:22 000 r/min
Fatigue load limit (Pu):1,37
Category:Precision Ball Bearings
Inventory:0.0
Minimum Buy Quantity:N/A
Weight / Kilogram:0.479
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:50MM Bore; 90MM Outside Diameter; 20MM 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:7210 ACD/P4A
Weight / LBS:1.047
Bore:1.969 Inch | 50 Millimeter
Outside Diameter:3.543 Inch | 90 Millimeter
Width:0.787 Inch | 20 Millimeter
r1,2 min.:1.1 mm
r3,4 min.:0.6 mm
a:26.4 mm
db min.:57 mm
Db max.:85.8 mm
dn:65.6 mm
Basic dynamic load rating C:42.3 kN
Basic static load rating C0:32.5 kN
Fatigue load limit Pu:1.37 kN
Attainable speed for grease lubrication:14000 r/min
Attainable speed for oil-air lubrication:22000 r/min
Ball diameter Dw:12.7 mm
Number of balls z:15
Reference grease quantity Gref:6.708 cm³
Preload class A GA:265 N
Static axial stiffness, preload class A:154 N/µm
Preload class B GB:530 N
Static axial stiffness, preload class B:201 N/µm
Preload class C GC:1060 N
Static axial stiffness, preload class C:266 N/µm
Preload class D GD:2120 N
Static axial stiffness, preload class D:359 N/µm
Calculation factor f:1.08
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:0.46 kg

Main Products: Load Wheel, Chain Wheel, Drive Wheel, Gear Block, Guide Wheel, Chain Rail Assembly, Track Assembly, Track Plate and High Strength Bolt. Other products: chain link, chain pin, bucket shaft, bucket shaft sleeve, swing frame, connecting rod, chain bracket, tension cylinder, tension spring, U-frame, large and small arm cylinder assembly, rubber block, bucket teeth, tooth base, etc.

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