The suffix
definition A: Internal
structural changes B: Increased
contact angle X: Overall
dimensions adopt the international
standard CD: double outer
ring, with oil hole or oil tank. TD: Double inner
ring with a tapered hole. Single-column tapered roller
bearings: Inner diameter size range:
20mm~1270mm Outer diameter size range:
40mm~1465mm Width and size range:
15mm~240mm Double-column conpered roller
bearing: Inner diameter size range:
38mm~1560mm Outer diameter size range:
70mm~1800mm Width and size range:
50mm~460mm Four column conpered roller
bearing: Range of inner diameter
dimensions: 130mm~1600mm Outer diameter size range:
200mm~2000mm Width and size range:
150mm~1150mm The single column of tapered
roller bearings has an outer ring, with an inner ring and a set of
tapered rollers enclosed by a basket holder. The outer ring can be
separated from the inner ring assembly. According to the ISO
external dimension standard of conical roller bearing, the outer
ring or inner ring assembly of any standard model should be
internationally exchanged with the outer ring or inner ring
assembly of the same model. That is, in addition to the external
dimensions and tolerances of the same model, the outer ring should
comply with the provisions of ISO492 (GB307), and the cone corner
of the inner ring component and the cone diameter of the component
must also comply with the relevant provisions of
exchange. Generally, the conical angle of
the outer ring of the roller channel is between 10 and 19, which
can withstand the combined action of both axial load and radial
load. The larger the cone angle, the greater the ability to
withstand the axial load. Large cone Angle bearing, rear code plus
B, cone Angle between 25 and 29, it can withstand a large axial
load. In addition, a single column of conical roller bearings can
adjust the gap size during installation。 The outer ring (or inner ring)
of the double-column conical roller bearing is a whole. The two
inner rings (or outer rings) have similar small end faces, and
there is a partition in the middle. The gap is adjusted by the
thickness of the partition, and the thickness of the partition can
also be adjusted to adjust the pre-surplus of the double column
conical roller bearing. Four rows of conical roller
bearings, the performance of this bearing is basically the same as
that of double row cone roller bearing, but more than the radial
load of double row cone roller bearing, the limit speed is slightly
lower, mainly used for heavy machinery. Multi-sealed double,
four-column tapered roller bearings, ZWZ provides long-life,
multi-sealed double, four-column tapered roller bearings. The new
design of bearings is personalized, the traditional design method
of fully sealed bearings is changed, and the new type of sealing
structure combining sealing and dust prevention is adopted to
improve the sealing effect and improve the sealing performance.
Compared with the open-structure bearing, the roller bearing life
span increases by 20%~40%; the lubricant consumption decreases by
80%。
