Falk NTN Single Reduction Parallel Shaft Self Aligning Roller Bearings
Our highly-skilled and factory-trained service experts Set Screw Shaft Attachment (2) have the resources to help you with all your Falk NTN Single Reduction Parallel Shaft Self Aligning Roller Bearings needs - including Hefei Wenhao Bearing Co., Ltd. routine maintenance, major repairs, warranty service, and Hm807046 Bearing equipment inspections.
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| Brand Name: | NTN |
| Bearing number: | 6404 |
| Size (mm): | 20x72x19 |
| Bore Diameter (mm): | 20 |
| Outer Diameter (mm): | 72 |
| Width (mm): | 19 |
| d: | 20 mm |
| D: | 72 mm |
| B: | 19 mm |
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Product Details
| Bearing number | 6404 |
| Size (mm) | 20x72x19 |
| Bore Diameter (mm) | 20 |
| Outer Diameter (mm) | 72 |
| Width (mm) | 19 |
| d | 20 mm |
| D | 72 mm |
| B | 19 mm |
| C | 19 mm |
| r min. | 1,1 mm |
| da min. | 26,5 mm |
| Da max. | 65,5 mm |
| ra max. | 1 mm |
| Weight | 0,4 Kg |
| Basic dynamic load rating (C) | 28,5 kN |
| Basic static load rating (C0) | 13,9 kN |
| (Grease) Lubrication Speed | 12 000 r/min |
| (Oil) Lubrication Speed | 14 000 r/min |
| rs min | 1.1 mm |
| Radial clearance class | CN |
| Mass | 0.4 kg |
| Dynamic load, C | 28.5 kN |
| Static load, C0 | 13.9 kN |
| Fatigue limit load, Cu | 0.63 kN |
| f0 | 11.4 |
| Nlim (oil) | 14,000 rpm |
| Nlim (grease) | 12,000 rpm |
| Min operating temperature, Tmin | -20 °C |
| Max operating temperature, Tmax | 120 °C |
| Characteristic cage frequency, FTF | 0.34 Hz |
| Characteristic rolling element frequency, BSF | 2.91 Hz |
| Characteristic outer ring frequency, BPF0 | 2.07 Hz |
| Characteristic inner ring frequency, BPFI | 3.93 Hz |
| da min | 26.5 mm |
| Da max | 65.5 mm |
| ra max | 1 mm |
| Category | Single Row Ball Bearing |
| Inventory | 0.0 |
| Minimum Buy Quantity | N/A |
| Weight / Kilogram | 0.403 |
| Product Group | B00308 |
| Enclosure | Open |
| Precision Class | ABEC 1 | ISO P0 |
| Maximum Capacity / Filling Slot | No |
| Rolling Element | Ball Bearing |
| Snap Ring | No |
| Internal Special Features | No |
| Cage Material | Steel |
| Internal Clearance | C0-Medium |
| Inch - Metric | Metric |
| Long Description | 20MM Bore; 72MM Outside Diameter; 19MM Outer Race Diameter; Open; Ball Bearing; ABEC 1 | ISO P0; No Filling Slot; No Snap Ring; No Internal Special Features |
| UNSPSC | 31171504 |
| Harmonized Tariff Code | 8482.10.50.68 |
| Noun | Bearing |
| Keyword String | Ball |
| Manufacturer Item Number | 6404 |
| Weight / LBS | 0.882 |
| Outside Diameter | 2.835 Inch | 72 Millimeter |
| Bore | 0.787 Inch | 20 Millimeter |
| Outer Race Width | 0.748 Inch | 19 Millimeter |
| bore diameter: | 20 mm |
| finish/coating: | Uncoated |
| outside diameter: | 72 mm |
| bearing material: | High Carbon Chrome Steel |
| overall width: | 19 mm |
| cage material: | Steel |
| bore type: | Round |
| inner ring width: | 19 mm |
| closure type: | Open |
| outer ring width: | 19 mm |
| row type & fill slot: | Single Row Non-Fill Slot |
| maximum rpm (grease): | 12000 rpm |
| snap ring included: | Without Snap Ring |
| maximum rpm (oil): | 14000 rpm |
| internal clearance: | CN |
| fillet radius: | 1.1 mm |
| operating temperature range: | -40 to 120 ºC |
| maximum rpm: | 14000 RPM |
| dynamic load capacity: | 28500 N |
| series: | 64 |
| static load capacity: | 13900 N |
| manufacturer product page: | Click here |
| precision rating: | Class 0 |
Company Profile
| Worktime |
9:00-18:00（Beijing time） |
| Phone |
86-02-7234259 |
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