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
63,5 mm x 110 mm x 21,996 mm ISO 390A/394A Rolamentos de rolos gravados	45 mm	22 mm	15	0,22 Kg
457,2 mm x 552,45 mm x 44,45 mm ISO 80180/80217 Rolamentos de rolos gravados	14 mm	36 mm	26,9 kN	36
45 mm x 85 mm x 23 mm ISO 32209 Rolamentos de rolos gravados	3 mm	12,8 Kg	RBEC 1 \| ISO P0	8482.50.00.00
100 mm x 165 mm x 52 mm ISO 33120 Rolamentos de rolos gravados	1.14	2 mm	55MM Bore; 120MM Out	7000 r/min
346,075 mm x 488,95 mm x 95,25 mm ISO HM262748/10 Rolamentos de rolos gravados	37	KOYO	42 mm	0,052 Kg
140 mm x 210 mm x 45 mm ISO 32028 Rolamentos de rolos gravados	Timken	0,8 mm	20,879 mm	20,879
260 mm x 480 mm x 130 mm ISO 32252 Rolamentos de rolos gravados	0.002 kN	0.015 kN	K 21x25x13	21 mm
100 mm x 145 mm x 22,5 mm ISO JP10049/10 Rolamentos de rolos gravados	220 r/min	13700 kN	212 mm	100 mm x 145 mm x 22,5 mm
98,425 mm x 157,162 mm x 36,116 mm ISO 52387/52618 Rolamentos de rolos gravados	190 mm	190	90 mm	123,9 mm
85 mm x 130 mm x 29 mm ISO JM716648/10 Rolamentos de rolos gravados	78 mm	40	M8	40 mm
40 mm x 68 mm x 22 mm ISO 33008 Rolamentos de rolos gravados	440 kN	GS 89416	2.04 kg	1730 kN
55 mm x 120 mm x 29 mm ISO 31311 Rolamentos de rolos gravados	69,85 mm	0,38	1160 kN	0,87