81140M/P6 china cylindrical thrust roller bearings
81144M thrust roller bearings
| Product Name | 81140 thrust cylindrical roller bearing |
| Precision Rating | P6 or P5 |
| Clearance | C0,C2,C3,C4,C5 |
| Seals type | Open |
| Material | GCr15 or GCr15SiMn |
| Cage | Brass or nylon |
| Sizes(mm) | |
| Application | Engine , machine |
| Grease | Oil grease lubricated |
| Service | OEM Customized Services |
| Feature | high quality,long life,low vibration |
| Place of orijinal | China,luoyang |
| Package type | Plastic Bag+ Box+ Carton + Pallet |
| Payment Terms | L/C,T/T,Western Union,MoneyGram,Paypal |
Standards
Axial cylindrical roller bearings according to DIN 722 (series 811 and 812) The versions 813, 814, 874, 893, and 894 are not standardied.
Tolerances
Running, design and dimension tolerances of axial cylindrical roller bearings are equivalent to the axial bearings standard tolerances, see section bearing data. Axial minimum load Axial cylindrical roller bearings have always to operate under axial load to avoid any slip between rollers and bearing washers. If external load is too small, you may use springs to achieve a pre-stress of the bearing. The minimum axial load is calculated as follows:
Fa min minimum axial load [kN]
C0 static bearing capacity [kN]
n maximum operating speed [min-1]
ka factor, see table
| Series | factor ko |
| 811 | 1,4 |
| 812 | 0,9 |
| 813 | 0,7 |
| 814 | 0,4 |
| 893 | 0,7 |
| 894 | 0,5 |
Axial cylindrical roller bearings come with machined brass cages. Our favourite is the roller guidance version, letter code M. It is possible to deliver the versions MB and MPB (cage supported on a disc washer).
Equivalent dynamic load
P = Fa [kN]
Equivalent static load
P0 = Fa [kN]
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