NNF bearings is one type of Double Row Full Complement Cylindrical Roller Bearings, with an annular groove and three lubrication holes in the outer ring to facilitate efficient lubrication , incorporate a maximum number of rollers and are therefo re suitable for very heavy radial loads. At the same time, they cannot operate at the same high speeds as caged cylindrical roller bearings.
NNF bearings in the NNF 50 and 3194(00) series are always sealed on both sides and filled with grease. The two-piece inner ring has three integral flanges and is held together by a retaining ring. The outer ring has an integral central flange. NNF bearings can be used to locate a shaft axially in both directions. Because of the large distance between the two rows of rollers, the bearings are also able to accommodate tilting moments.
The bearings are filled with greases, which have good rust inhibiting properties. Under certain conditions, sealed NNF design bearings are maintenance-free, but if they operate in a moist or contaminated environment, or if speeds are moderate to high, they must be relubricated. This can be done through the inner as well as the outer ring.
If bearings with one or no seals are required, the seals may be removed easily with a screwdriver. For applications where oil lubrication is to be used, the bearings can be delivered without seals and grease if economic quantities are involved. Otherwise the seals should be removed and the bearings washed before use. If oil lubrication is used, the limiting speed quoted in the product tables can be increased by approximately 30%.
Some of NNF bearings we could supply in stock is as following:
50 80 40 NNF 5010 ADB-2LSV 48 pcs in stock
55 90 46 NNF 5011 ADB-2LSV 22pcs in stock
60 95 46 NNF 5012 ADB-2LSV 38 pcs in stock
65 100 46 NNF 5013 ADB-2LSV 21 pcs in stock
70 110 54 NNF 5014 ADB-2LSV 14 pcs in stock
75 115 54 NNF 5015 ADB-2LSV 46 pcs in stock
80 125 60 NNF 5016 ADB-2LSV 35 pcs in stock
85 130 60 NNF 5017 ADB-2LSV 36 pcs in stock
90 140 67 NNF 5018 ADB-2LSV 34 pcs in stock
95 145 67 NNF 5019 ADB-2LSV 38 pcs in stock
100 150 67 NNF 5020 ADB-2LSV 37 pcs in stock
110 170 80 NNF 5022 ADA-2LSV 32 pcs in stock
120 180 80 NNF 5024 ADA-2LSV 19 pcs in stock
130 200 95 NNF 5026 ADA-2LSV 28 pcs in stock
140 210 95 NNF 5028 ADA-2LSV 26pcs in stock
150 225 100 NNF 5030 ADA-2LSV 38 pcs in stock
160 240 109 NNF 5032 ADA-2LSV 24 pcs in stock
170 260 122 NNF 5034 ADA-2LSV 32 pcs in stock
180 280 136 NNF 5036 ADA-2LSV 28 pcs in stock
190 290 136 NNF 5038 ADA-2LSV 26 pcs in stock
200 310 150 NNF 5040 ADA-2LSV 19 pcs in stock
220 340 160 NNF 5044 ADA-2LSV 28 pcs in stock
240 360 160 NNF 5048 ADA-2LSV 26 pcs in stock
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