Technical Drawing
Exploded View
The Jumbo adjustable combined bearings represent a special range both for dimensions and technical features.
They are used both for big size fork lift masts and for different industrial applications in the following fields: ship, aircraft, steel industry.
High load capacity and a limited width represent the fundamental features of this bearing.
They are normally supplied with seals in ZZ execution. They can also be supplied in 2RS execution on request. “Jumbo” bearings are provided with a lubrication system of the radial part.
Also the thrust ring is manufactured in cementation steel.
The central pivot is manufactured in 16CrNi4 steel which guarantees the maximum resistance to fatigue and a good welding.
The “Jumbo” adjustable bearings have the following features:
Outer ring, axial little roll and little pin are manufacture in 16CrNi4 steel . This
kind of material has a very high core resistance and is particularly suitable to
endure shocks and to support the applied loads. These components reach a hardness
of 60-
The inner ring is manufactured in 100Cr6 steel with hardness 60+2 HRC.
THE BEARINGS ARE IN ZRS EXECUTION.
The adjusting of dimension “H” is possible through the rotation of the axial pivot.
The bearings are supplied with lubrication holes.
Technical Characteristics
”Jumbo” adjustable combined bearings
C.R. Ref.
400-
400-
400-
400-
400-
400-
T
mm
113
124
146
168
188
218
Co
KN
388
500
681
748
1066
1370
Ca
KN
85
100
138
138
182
210
Coa
KN
133
180
257
257
488
422
Profile
FM 165
FM 190
FM 220
FM 250
FM 280
*
d
mm
80
100
110
120
150
140
H
mm
69
84,5
94,5
102
119,5
135
D
mm
165
190
220
250
280
320
h max
mm
56
67,5
77,5
80
93,5
114
h min.
mm
53
64,5
74,5
77
89,5
110
B
mm
40
48
58
60
72
85
A
mm
5
6,5
6,5
7
7,5
10
S
mm
50
60
75
75
90
90
r
mm
3
4
5
5
5
8
C
KN
213
266
326
369
489
542
1. Fey seal ring
2. Support thrust ring
3. Axial part
4. Pivot
5. Outer ring
6. Cylindrical rollers
7. Inner ring
8. Fey seal ring
C: Dynamic load
Co: Static load
Ca: Dynamic axial load
Coa: Static axial load
C.R. s.r.l. -
