NTN MR7309 services Cylindrical Roller Bearings

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NTN MR7309 services Cylindrical Roller Bearings image

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Tapered roller thrust bearings Product Description

Bearing number:7221 CD/P4A
Size (mm):190x105x36
Bore Diameter (mm):190
Outer Diameter (mm):105
Width (mm):36
d:105 mm
D:190 mm
B:36 mm
d1:131.2 mm
d2:131.2 mm
D1:163.8 mm
r1,2 - min.:2.1 mm
r3,4 - min.:1.1 mm
a:37.9 mm
da - min.:117 mm
db - min.:117 mm
Da - max.:178 mm
Db - max.:183 mm
ra - max.:2 mm
rb - max.:1 mm
dn:138.4 mm
Basic dynamic load rating - C:172 kN
Basic static load rating - C0:153 kN
Fatigue load limit - Pu:5.3 kN
Limiting speed for grease lubrication:7500 r/min
Limiting speed for oil lubrication:12000 mm/min
Ball - Dw:26.988 mm
Ball - z:15
Gref:48.333 cm3
Calculation factor - f0:14.5
Preload class A - GA:650 N
Preload class B - GB:1300 N
Preload class C - GC:2600 N
Preload class D - GD:5200 N
Calculation factor - f:1
Calculation factor - f2A:1
Calculation factor - f2B:1.01
Calculation factor - f2C:1.03
Calculation factor - f2D:1.05
Calculation factor - fHC:1
Preload class A:129 N/micron
Preload class B:174 N/micron
Preload class C:243 N/micron
Preload class D:349 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: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 | Super Precision | High Capacity Basic Design
Long Description:105MM Bore; 190MM Outside Diameter; 36MM 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 Ra
UNSPSC:31171531
Harmonized Tariff Code:8482.10.50.28
Noun:Bearing
Keyword String:Ball Angular Contact
Outside Diameter:7.48 Inch | 190 Millimeter
Bore:4.134 Inch | 105 Millimeter
Width:1.417 Inch | 36 Millimeter
r1,2 min.:2.1 mm
r3,4 min.:1.1 mm
da min.:117 mm
db min.:117 mm
Da max.:178 mm
Db max.:183 mm
ra max.:2 mm
rb max.:1 mm
Basic dynamic load rating C:172 kN
Basic static load rating C0:153 kN
Fatigue load limit Pu:5.3 kN
Attainable speed for grease lubrication:7500 r/min
Attainable speed for oil-air lubrication:12000 r/min
Ball diameter Dw:26.988 mm
Number of balls z:15
Reference grease quantity Gref:48.333 cm³
Preload class A GA:650 N
Static axial stiffness, preload class A:129 N/µm
Preload class B GB:1300 N
Static axial stiffness, preload class B:174 N/µm
Preload class C GC:2600 N
Static axial stiffness, preload class C:243 N/µm
Preload class D GD:5200 N
Static axial stiffness, preload class D:349 N/µm
Calculation factor f:1.08
Calculation factor f1:1
Calculation factor f2A:1
Calculation factor f2B:1.01
Calculation factor f2C:1.03
Calculation factor f2D:1.05
Calculation factor fHC:1
Calculation factor f0:14.5
Mass bearing:3.87 kg

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