Carrier 39T - Fan, Shaft and Bearing Details; Fan Wheel Rotation

DRIVE PULLEY
NOMINAL TORQUE
SCREW SIZE (in.-lb)
No. 6 9
No. 8 16
No. 10 30
1
⁄ 4 70
5
⁄ 16 140
3
⁄ 8 216
TORQUE TABLE
CAPSCREW AND
SETSCREW
SIZE (no/in.)
HEX HEAD SQUARE HD
TORQUEACROSS ACROSS
FLATS (in.) FLATS (in.)
10
3
⁄ 32 — 25 in.-lb
1
⁄ 4
1
⁄ 8 — 60 in.-lb
5
⁄ 16
5
⁄ 32 — 10 ft-lb
3
⁄ 8
3
⁄ 16 — 17 ft-lb
7
⁄ 16
7
⁄ 32 — 25 ft-lb
1
⁄ 2
1
⁄ 4
1
⁄ 2 40 ft-lb
5
⁄ 8
5
⁄ 16 — 90 ft-lb
3
⁄ 4
3
⁄ 8 — 125 ft-lb
BEARING HOLDDOWN BOLT TORQUE
BOLT SIZE (in.) TORQUE (ft-lb)
3
⁄ 8 -16 30
1
⁄ 2 -13 63
5
⁄ 8 -11 100
3
⁄ 4 -10 165
ROLLER — EXTENDED RACE, ONE OR BOTH SIDES SQUEEZE-TYPE LOCKING COLLAR
Fig. 60 — Fan, Shaft and Bearing Details
AIRFOIL — SIDE VIEW
(Double-Width, Double Inlet)
FORWARD CURVED — SIDE VIEW
(Double-Width, Double Inlet)
PLENUM — END VIEW
(Single-Width, Single Inlet)
Fig. 61 — Fan Wheel Rotation
73