Page 684 - Rollingbearings

8 Tapered roller bearings
Table 7
Axial loading of bearing applications incorporating two single row tapered roller bearing arrangements and/or bearing pairs in tandem
Bearing arrangement Load case Axial loads

Back-to-back Case 1a
B A
F rA F rB 0,5 F rA
aA
aB
aA
—– ≥ —– F = ——— F = F + K a
Y Y Y
A B A
K a
K ≥ 0
a
F rB
F rA
Face-to-face Case 1b
A B
F rA F rB 0,5 F rA
—– < —– F = ——— F = F + K a
aB
aA
aA
Y A Y B Y A
K a
q F rB F w
rA
F rB K ≥ 0,5 —— – ——
a
Y z
F rA < Y
B A
Case 1c
F rA F rB 0,5 F rB
aB
aA
—– < —– F = F – K a F = ———
aB
Y Y Y
A B B
q F rB F w
rA
a
K < 0,5 —— – ——
< Y Y z
B A
Back-to-back Case 2a
B A
8 F rA F rB F = F + K 0,5 F rB
—– ≤ —–
aB
Y
Y Y aA aB a F = ———
A B B
K a
K ≥ 0
a
F rB
F rA
Face-to-face Case 2b
A B
F rA F rB 0,5 F rB
aA
aB
—– > —– F = F + K a F = ———
aB
Y A Y B Y B
K a
q F rA F rB w
F rB
K ≥ 0,5 —— – ——
a
F rA < Y Y z
A B
Case 2c
F F 0,5 F
rA rB rA
aA
aB
aA
—– > —– F = ——— F = F – K a
Y A Y B Y A
q F rA F rB w
K < 0,5 —— – ——
a
< Y Y z
A B
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