ISO Rolamentos de rolos gravados

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The original metric part-numbering system for tapered roller bearings was based on the ISO 15 dimensional plan for radial bearings.

ISO introduced a new numbering system for tapered roller bearings in the ISO 355 plan. This numbering system uses three alphanumeric fields to define a dimension series. The bearing part number is defined by adding the inner ring bore diameter after the dimension series..

ABMA (inch) part numbers designed with metric envelope dimensions are identified with a J-prefix. Many of these part numbers have been assigned an ISO dimension series.The latest ISO 355 plan includes an expanded range of metric bearings originally designed by The Timken Company. These bearings are identified with a J-prefix.

ABMA standard 20 defines 5 classes: ABEC 1, ABEC 3, ABEC 5, ABEC 7, and ABEC 9. Instrument series ball bearings are defined in standards 12.1 and 12.2 and carry the suffix “P”. Extra thin and thin section ball bearings defined in standards 12.1 and 12.2 carry the suffix “T”. The higher the number of the classification, the tighter the tolerances become resulting in higher precision of the assembled bearing. When the classification system was first set up, machine tool technology was such that manufacturers mass produced only ABEC 1, and sometimes ABEC 3. Bearings for the higher classifications were selected from the production runs of the lower classification. Today, the technology has advanced to the point where manufacturers can produce ABEC 7 and ABEC 9 bearings routinely.

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Bearing Number	Bore Dia	Outer DIa	Width	Size
82,55 mm x 133,35 mm x 39,688 mm ISO HM516448/10 Rolamentos de rolos gravados	NTN	NN4968KC1NAP4	460 mm	118 mm
165,1 mm x 225,425 mm x 39,687 mm ISO 46790/46720 Rolamentos de rolos gravados	25	165,1 mm x 225,425 mm x 39,687 mm	12 mm	15 °
596,9 mm x 685,8 mm x 31,75 mm ISO 680235/680270 Rolamentos de rolos gravados	25 mm	Pillow Block	SYJ 80 TF	0 Inch \| 0Millimeter
60,325 mm x 127 mm x 36,512 mm ISO HM813841/10 Rolamentos de rolos gravados	CRAFT	50 mm	60,325 mm x 127 mm x 36,512 mm	50
73,025 mm x 120 mm x 30,162 mm ISO 33287/33472 Rolamentos de rolos gravados	55 mm	120 mm	43	ISO
28,575 mm x 72,626 mm x 29,997 mm ISO 3198/3120 Rolamentos de rolos gravados	50,8 mm	26,988	Timken	0,8 mm
34,925 mm x 76,2 mm x 25,654 mm ISO 2796/2720 Rolamentos de rolos gravados	38,481 mm	31,75 mm	63,5	0,4 mm
220 mm x 400 mm x 65 mm ISO 30244 Rolamentos de rolos gravados	108 mm	0,63 Kg	50 °	56 mm
155,575 mm x 330,2 mm x 79,375 mm ISO H936340/10 Rolamentos de rolos gravados	22,225	22,225 mm	SCE1414-PP	0.036
12,7 mm x 38,1 mm x 14,072 mm ISO 00050/00150 Rolamentos de rolos gravados	61,5 mm	375 kN	1 230 kN	1,5 mm
130 mm x 230 mm x 40 mm ISO 30226 Rolamentos de rolos gravados	130 mm x 230 mm x 40 mm	6,000 mm	NTN	19,000
35,128 mm x 65,088 mm x 18,288 mm ISO LM48545/10 Rolamentos de rolos gravados	Ball Bearing	M8	3.748	1.181 Inch \| 30 Mill