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Type E METRIC / Typ E METRISCH / Type E METRIQUE / Tipo E MÉTRICO /
Tipo E METRICO
METRIC TYPE E TAPERED ROLLER BEARINGS / METRISCHER TYP E KEGELROLLENLAGER /
ROULEMENTS A ROULEAUX CONIQUES DE TYPE E METRIQUE / RODAMIENTOS DE RODILLOS
CÓNICOS DE TIPO E MÉTRICO / TIPO- E METRICO E CUSCINETTI A RULLI CONICI
Ball Bearing
DODGE Type E Double Row Tapered Roller Bearings
have the capacity to carry heavy radial loads, thrust
loads and <strong>com</strong>bined radial and thrust loads. The
maximum re<strong>com</strong>mended load which can be applied
is limited by various <strong>com</strong>ponents in the system such
as bearing, housing, shaft, shaft attachment, speed
and life requirements as listed in this catalog. DODGE
Unitized Type E Roller Bearings have been applied
successfully even when these limits have been
exceeded under controlled operating conditions.
L 10
Life, Hours -- The life which may be expected from
at least 90% of a given group of bearings operating
under identical conditions.
L 10
Life, Hours =
Where:
10/3
1,500,000
( ) X
C 90
P
RPM
C 90
= Dynamic Capacity (Table 1), kN
P = Equivalent Radial Load, kN
(See Equation 1 On Page B5-15 for definition
of P)
GENERAL
Heavy Service -- For heavy shock loads, frequent
shock loads, or severe vibrations, increase the
Equivalent Radial Load by up to 50% (according to
severity of conditions) to obtain a Modified Equivalent
Radial Load. Consult Application Engineering at 864-
284-5700 for additional selection assistance.
Thrust load values shown in the table are
re<strong>com</strong>mended as a guide for general applications
that will give adequate L 10
life for plummer blocks.
The maximum thrust load should not exceed values
shown on Table 1. Where substantial radial load is
also present, it is advisable to calculate actual L 10
life to assure that it meets the requirements. The
effectiveness of the shaft attachment to carry thrust
load depends on proper tightening of the setscrews,
shaft tolerance and shaft deflections. Therefore, it is
advisable to use auxiliary thrust carrying devices such
as shaft shoulder, snap ring or a thrust collar to locate
the bearing under thrust loads heavier than shown
below, or where extreme reliability is <strong>des</strong>ired.
RPM RANGE
RPM-BEREICH
GAMME DES VITESSES DE
ROTATION
20-200 201-2000 over 2000
INTERVALO RPM
RECOMMENDED THRUST LOAD
RECOMMENDED THRUST LOAD C 90
/4 C 90
/8 C 90
/12
EMPFOHLENE AXIALLAST C 90
/4 C 90
/8 C 90
/12
POUSSEE AXIALE
RECOMMANDEE
C 90
/4 C 90
/8 C 90
/12
CARGA AXIAL RECOMENDADA C 90
/4 C 90
/8 C 90
/12
CARICO ASSIALE
RACCOMANDATO
C 90
/4 C 90
/8 C 90
/12
The shaft tolerances re<strong>com</strong>mended below are
adequate for the conditions outlined in this catalog.
Since the allowable load, especially at a low speed,
is very large, the shaft should be checked to assure
adequate shaft strength.
The magnitude and direction of both the thrust and
radial load must be taken into account when selecting
a shaft size. Heavy loads should be directed through
the base. Where uplift loads are involved see Table
4, page B5B5-24 for maximum values. Where a load
pulls the housing away from the mounting base, both
the hold-down bolts and housing must be of adequate
strength. Auxiliary load carrying devices such as shear
bars are advisable for side or end loading of plummer
blocks.
SHAFT TOLERANCES / WELLENTOLERANZEN /
TOLERANCES D’ARBRE / TOLERANCIAS DEL EJE /
TOLLERANZE DELL’ALBERO
SHAFT SIZE
TOLERANCE
WELLENGRÖSSE
TOLERANZ
DIMENSIONS DE L’ARBRE
TOLERANCE
TAMAÑO DEL EJE
TOLERANCIA
DIMENSIONI DELL’ALBERO TOLLERANZA
Up to 35mm
+.000 - .013mm
40 to 100mm +.000 - .025mm
100 - 150mm +.000 - .038mm
160 - 180mm +.000 - .051mm
Type E
Two-Bearing Housings
SOLIDLUBE
E-Z KLEEN
B5-9