NSK 6321DDU deep groove ball bearings

NSK 6321DDU deep groove ball bearings with easy-to-use 190x140x24 Size (mm) parts graphics, giving you the ability to check parts availability, pricing, examine remanufactured options.
Size (mm) | 190x140x24 |
Bore Diameter (mm) | 190 |
Outer Diameter (mm) | 140 |
Width (mm) | 24 |
d | 140 mm |
D | 190 mm |
B | 24 mm |
d1 | 155.4 mm |
d2 | 155.4 mm |
D1 | 174.6 mm |
r1,2 – min. | 1.5 mm |
r3,4 – min. | 0.6 mm |
a | 50.6 mm |
da – min. | 147 mm |
db – min. | 147 mm |
Da – max. | 183 mm |
Db – max. | 186 mm |
ra – max. | 1.5 mm |
rb – max. | 0.6 mm |
dn | 159.5 mm |
Basic dynamic load rating – C | 90.4 kN |
Basic static load rating – C0 | 110 kN |
Fatigue load limit – Pu | 3.6 kN |
Limiting speed for grease lubrication | 6000 r/min |
Limiting speed for oil lubrication | 9000 mm/min |
Ball – Dw | 15.875 mm |
Ball – z | 29 |
Gref | 21.6 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 | 560 N |
Preload class B – GB | 1120 N |
Preload class C – GC | 2240 N |
Preload class D – GD | 4480 N |
Calculation factor – f | 1.29 |
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 | 348 N/micron |
Preload class B | 457 N/micron |
Preload class C | 614 N/micron |
Preload class D | 841 N/micron |
Inventory | 0.0 |
Manufacturer Name | SKF |
Minimum Buy Quantity | N/A |
Weight / Kilogram | 1.91 |
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 | 140MM Bore; 190MM Outside Diameter; 24MM Width; Open Enclosure; ABEC 7 | ISO P4 Precision; Steel Bal |
UNSPSC | 31171531 |
Harmonized Tariff Code | 8482.10.50.28 |
Noun | Bearing |
Keyword String | Angular Contact Ball |
Manufacturer Item Number | 71928 ACD/P4A |
Weight / LBS | 4.211 |
Bore | 5.512 Inch | 140 Millimeter |
Outside Diameter | 7.48 Inch | 190 Millimeter |
Width | 0.945 Inch | 24 Millimeter |
r1,2 min. | 1.5 mm |
r3,4 min. | 0.6 mm |
da min. | 147 mm |
db min. | 147 mm |
Da max. | 183 mm |
Db max. | 186 mm |
ra max. | 1.5 mm |
rb max. | 0.6 mm |
Basic dynamic load rating C | 90.4 kN |
Basic static load rating C0 | 110 kN |
Fatigue load limit Pu | 3.65 kN |
Attainable speed for grease lubrication | 6000 r/min |
Attainable speed for oil-air lubrication | 9000 r/min |
Ball diameter Dw | 15.875 mm |
Number of balls z | 29 |
Reference grease quantity Gref | 21.6 cm³ |
Preload class A GA | 560 N |
Static axial stiffness, preload class A | 348 N/µm |
Preload class B GB | 1120 N |
Static axial stiffness, preload class B | 457 N/µm |
Preload class C GC | 2240 N |
Static axial stiffness, preload class C | 614 N/µm |
Preload class D GD | 4480 N |
Static axial stiffness, preload class D | 841 N/µm |
Calculation factor f | 1.29 |
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 | 1.65 kg |
Detailed Parameters
parameter:
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