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.

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

133,35 mm x 177,008 mm x 26,195 mm ISO L327249/10 Rolamentos de rolos gravados

NNCF4852V 304 mm
260 mm 260
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