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
44,45 mm x 93,662 mm x 31,75 mm ISO 49175/49368 Rolamentos de rolos gravados	20,638 mm	85	25,608 mm	25,4
100 mm x 165 mm x 46 mm ISO T2EE100 Rolamentos de rolos gravados	0,127	83,7 mm	C2214KTN9	83,7 mm
60,325 mm x 130,175 mm x 33,338 mm ISO HM911245/10 Rolamentos de rolos gravados	8	Bones REDS	60,325 mm x 130,175 mm x 33,338 mm	Bones Bearings
247,65 mm x 346,075 mm x 63,5 mm ISO M348449/10 Rolamentos de rolos gravados	2.559 Inch \| 65 Mill	1,6	Spherical Plain Bear	4012802533880
44,45 mm x 95,25 mm x 28,3 mm ISO 53177/53375 Rolamentos de rolos gravados	950 kN	200 r/min	44,45 mm x 95,25 mm x 28,3 mm	125 mm
50,8 mm x 90 mm x 22,225 mm ISO 368A/362 Rolamentos de rolos gravados	12,7	18,26 mm	22,225	11,1 mm
17 mm x 47 mm x 19 mm ISO 32303 Rolamentos de rolos gravados	20 000 kN	81 mm	75 mm	1 mm
75 mm x 150 mm x 38 mm ISO T7FC075 Rolamentos de rolos gravados	26 mm	26	75 mm x 150 mm x 38 mm	20
50,8 mm x 93,264 mm x 30,302 mm ISO 3780/3720 Rolamentos de rolos gravados	FAG	21	41,5 mm	21 mm
133,35 mm x 177,008 mm x 26,195 mm ISO L327249/10 Rolamentos de rolos gravados	NNCF4852V	304 mm	260 mm	260
34,925 mm x 85,725 mm x 30,162 mm ISO 3872/3820 Rolamentos de rolos gravados	NACHI	55 mm	165 mm	M14
50,8 mm x 88,9 mm x 22,225 mm ISO 368A/362A Rolamentos de rolos gravados	18,7 mm	0,204 Kg	47 mm	30,96