45 mm x 68 mm x 22 mm KOYO NA4909 KOYO Bearing
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What is NA4909 bearing cross reference？
| Brand Name: | KOYO |
| Model Number: | NA4909 |
| Bearing number: | 81218 TN |
| Size (mm): | 135x90x35 |
| Bore Diameter (mm): | 135 |
| Outer Diameter (mm): | 90 |
| Width (mm): | 35 |
| d: | 90 mm |
| D: | 135 mm |
| H: | 35 mm |
| PDF |
NA4909 |
Product Details
| Bearing number | 81218 TN |
| Size (mm) | 135x90x35 |
| Bore Diameter (mm) | 135 |
| Outer Diameter (mm) | 90 |
| Width (mm) | 35 |
| d | 90 mm |
| D | 135 mm |
| H | 35 mm |
| d1 | 135 mm |
| D1 | 93 mm |
| B | 10.5 mm |
| r1,2 - min. | 1.1 mm |
| da - min. | 129 mm |
| Da - max. | 95 mm |
| ra - max. | 1.1 mm |
| Basic dynamic load rating - C | 232 kN |
| Basic static load rating - C0 | 865 kN |
| Fatigue load limit - Pu | 90 kN |
| Reference speed | 1000 r/min |
| Limiting speed | 2000 r/min |
| Category | Thrust Roller Bearings |
| Inventory | 0.0 |
| Minimum Buy Quantity | N/A |
| Weight / Kilogram | 1.854 |
| Product Group | B04144 |
| Rolling Element | Cylindrical Roller Bearing |
| Self Aligning | No |
| Component Description | Roller Assembly plus Raceways |
| Thrust Bearing | Yes |
| Single or Double Direction | Single Direction |
| Banded | No |
| Cage Material | Polyamide |
| Precision Class | ABEC 1 | ISO P0 |
| Other Features | Single Row | Injection Molded Cage |
| Long Description | 90MM Bore 1; 93MM Bore 2; 135MM Outside Diameter; 35MM Height; Cylindrical Roller Bearing; Single Direction; Not Self Aligning; Not Banded; Polyamide Cage; ABEC 1 | ISO P0; Roller Assembly plus Racewa |
| Inch - Metric | Metric |
| UNSPSC | 31171507 |
| Harmonized Tariff Code | 8482.50.00.00 |
| Noun | Bearing |
| Keyword 3 | Cylindrical |
| Keyword String | Thrust Roller Cylindrical |
| Manufacturer Item Number | 81218 TN |
| Weight / LBS | 3.858 |
| Bore 2 | 3.661 Inch | 93 Millimeter |
| Bore 1 | 3.543 Inch | 90 Millimeter |
| Outside Diameter | 5.315 Inch | 135 Millimeter |
| Overall Height with Aligning Washer | 0 Inch | 0 Millimeter |
| Height | 1.378 Inch | 35 Millimeter |
| bore diameter: | 90 mm |
| maximum rpm: | 2000 rpm |
| outside diameter: | 135 mm |
| fillet radius: | 1.1 mm |
| overall width: | 35 mm |
| compatible washers: | GS81218, WS81218 |
| thrust bearing type: | Roller & Cage Assembly with Washers |
| housing washer inside diameter: | 93 mm |
| operating temperature range: | Max 250 °F |
| washer width: | 10.5 mm |
| bearing material: | Steel |
| series: | 812 |
| static load capacity: | 865 kN |
| manufacturer product page: | Click here |
| cage material: | Polyamide 66 |
| manufacturer upc number: | 7316570237863 |
| dynamic load capacity: | 232 kN |
| r1,2 min. | 1.1 mm |
| da min. | 129 mm |
| Da max. | 95 mm |
| ra max. | 1.1 mm |
| Basic dynamic load rating C | 232 kN |
| Basic static load rating C0 | 865 kN |
| Fatigue load limit Pu | 90 kN |
| Minimum axial load factor A | 0.0599 |
| Mass bearing | 1.77 kg |
