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1) MANUFACTURING RANGE
Metric
Series
| Basic
symbol |
d |
D |
H
|
| 30204
A - 30232 A |
20
- 160 |
47
- 290 |
14
- 48 |
| 30306
A - 30324 A |
30
- 120 |
72
- 260 |
19
- 55 |
| 31308
A - 31315 A |
40
- 75 |
90
- 160 |
23
- 37 |
| 31322
A - 31328 A |
110
- 140 |
240
- 300 |
63
- 70 |
| 32008
XA - 32044 XA |
40
- 220 |
68
- 340 |
19
- 76 |
| 32207
A - 32236 A |
35
- 180 |
72
- 320 |
23
- 86 |
| 32305
A - 32326 A |
25
- 130 |
62
- 280 |
24
- 93 |
| 33010,
33013, 33019, 33020 |
50,
65, 95, 100 |
80,
100, 145, 150 |
24,
27, 39 |
| 33110
- 33114, 33118 |
50
- 70, 90 |
85
- 120, 150 |
26
- 37, 45 |
| 33207,
33212 - 33217 |
35,
60 - 85 |
72,
110 - 150 |
28,
38 - 49 |
Inch Series
| 02475
/ 02420 |
484
/ 472 |
L
68149 / L 68111 |
| 15116
/ 15245 |
575
/ 572 |
LM
102949 / LM 102910 |
| 15123
/ 15245 |
567
/ 563 |
LM
104949 / JLM 104910 |
| 14125
A / 14276 |
567
A / 563 |
LM
104949 / LM 104911 |
| 18790
/ 18720 |
580
/ 572 |
LM
104949 / LM 104912 |
| 25590
/ 25520 |
594
A / 592 A |
LM
11749 / LM 11710 |
| 25580
/ 25520 |
595A
/ 592 A |
LM
11949 / LM 11910 |
| 25590
/ 25523 |
598
/ 592 A |
LM
12749 / LM 12710 |
| 28580
/ 28521 |
598A
/ 592 A |
LM
12749 / LM 12711 |
| 33275
/ 33462 |
663
/ 653 |
LM
29748 / LM 29710 |
| 33275
/ 33472 |
HM
212047 / HM 212011 |
LM
29749 / LM 29710 |
| 3767
/ 3720 |
HM
212049 / HM 212011 |
LM
48548 / LM 48510 |
| 3780
/ 3720 |
HM
218248 / HM 218210 |
LM
501349 / LM 501310 |
| 3782
/ 3720 |
HM
518445 / HM 518410 |
LM
503349 / LM 503310 |
| 3982
/ 3920 |
JL
68145 / JL 68111 Z |
LM
67048 / LM 67010 |
| 3984
/ 3920 |
JL
69349 / JL 69310 |
LM
67049A / LM 67010 |
| 387
A / 382 A |
JLM
104948 / LM 104912 |
M
12649 / M 12610 |
| 39590
/ 39520 |
JLM
104948 / JLM 104912 |
M
88048 / M 88010 |
| 399AS
/ 394 A |
L
44643 / L 44610 |
T4CB100P6X |
| 42381
/ 42584 |
L
44649 / L 44610 |
T4CB120P6X |
| 45280
/ 45220 |
L
45449 / L 45410 |
T4CB120P6XF2 |
| 45284
/ 45220 |
L
68149 / L 68110
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2) DESIGN
TYPES
single row
double row
four row
3) TECHNICAL
EXECUTION CONDITIONS
a) DIMENSIONS
standardized
Single row tapered roller bearings- the boundary dimensions
according to ISO 355
Double and four row according to national standard
non- standardized, inch dimensions
b)
TOLERANCE CLASSES
Tapered roller bearings are
generally manufactured to the normal tolerance class ISO and
AFBMA 9 respectively ( for bearings with inch dimensions).
For certain application they can be also manufactured to tolerance
classes P5 and P6X or 3 AFBMA . At request can be class P4.
c) Radial and axial
clearance: as tapered roller bearings are dismountable, their
clearance is not guaranteed by design and it is adjusted while
mounting, therefore optimum clearance can be obtained for
that application.
4)
CAGE TYPES
Pressed steel cage for small and medium sized tapered roller
bearings
Machined steel or brass cages, with welded pins, for large
sized bearings
Glass fibre reinforced polyamide 6.6 cage for small and medium
sized bearings if the operating temperature doesn't exceed
120 grades Celcius.
5) APPLICATIONS
a)
ENGINEERING MACHINE INDUSTRY
b)
METAL- WORKING INDUSTRY
c)
CHEMICAL INDUSTRY
d)
MINING INDUSTRY
6) SUGGESTIONS
a)
MISALIGNMENT as
between rollers and raceways there is a linear contact, tapered
roller bearings have low capacity to compensate errors of
alignment between shaft and housing.
b)
MINIMUM AXIAL LOAD
c)
RUNNING TEMPERATURES
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