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NA 4907 Needle Roller Bearing
Min. Order:
1 Piece
Payment term:
T/T,L/C
Delivery time:
Within 3 days after recieve payment
Technical Parameters:
Product Designations:
NA 4907
Structure:
Needle Roller Bearing NA 4907
Inside Diameter:
35 mm
Outside Diameter:
55 mm
Thickness:
20 mm
Weight:
- KG
Brand:
FAG
Precision Rating:
P2
Bearing Material:
Chrome steel
Seals Type:
Open
Quick Details
Type: Needle
Brand Name: All BRANDS in stock now
Bore Size: 100 - 1000 mm
Outside Diameter: 150 - 1220 mm
Model Number: HKseries,KRseries,NAseries,HKseri...
Precision Rating: P0 P6 P4 P2
Seals Type: seal or open
Number of Row: Single Row
Packaging Details: standard packings or according to your requests
Delivery Detail: within 3 days after receiving your payments
Specifications
1)OEM promise good quality
2)Fast delivery
3)Competitive price
4)Free sample
5)All brands in stock now
Needle roller bearings (needle bearing) with cylindrical roller is a roller bearing, relative to its diameter, roller both thin and long. This is called needle roller.
1.Despite the smaller cross section, has a higher load bearing capacity, with thin and long needle bearing roller (roller diameter D ≤ 5mm, L / D ≥ 2.5, L the length of the roller), therefore radial structure is compact, the diameter size and load capacity and other types of bearings, minimum diameter, especially for the radial bearing mounting dimensions restricted results.
2.Depending on different occasions, can be used without inner ring of the bearing or needle roller and cage assembly, this time to match the journal and the bearing surface and the shell holes as bearing directly on the surface of the inner and outer rolling surface,
3.in order to ensure the load capacity and operating performance and a ring bearing the same shaft or housing bore raceway surface hardness, machining accuracy and surface quality should be similar to the roller bearing rings. Such bearings can only bear radial load.
4.Needle roller bearings Features
With thin and long needle bearing roller (roller diameter D ≤ 5mm, L / D ≥ 2.5, L is the length of rollers), so the radial structure is compact, the diameter size and load capacity and other types of bearings minimum diameter, especially for radial mounting dimensions restricted support the results.
5.Depending on different occasions, can be used without inner ring of the bearing or needle roller and cage assembly, this time to match the journal and the bearing surface and the shell holes as bearing directly on the surface of the inner and outer rolling surface, in order to ensure the load capacity and operating performance and a ring bearing the same shaft or housing bore raceway surface hardness, machining accuracy and surface quality should be similar to the roller bearing rings. Such bearings can only bear radial load.
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