Page 53 of 79
SECTION 7: ROTOR HEAD
Bag 7
7-1 MAIN ROTOR HUB ASSEMBLY
No. Bag# Description
Qty No. Bag# Description
Qty
1 7 Main Blade Grip*
2
9
HB
M3X5X3 Spacer
2
2
7
Pitch Arm**
2
10
7
Head Spindle Spacer
2
3 7 Center
Hub
1 11 7 Thrust
Bearing
Spacer
2
4
7 Hiller
Arm
2
12
7
8x16x5 Thrust Bearing
2
5
7
Head Spindle
1
13
7
M4 x8 Flange Cap Head Bolt
2
6 7 Dampener
O-Ring
4
14
7
8x16x5 Regular Bearing
4
7
HB
M3x7 Pivot Ball Stud(1)
2
15
HB M3x12 Cap Head Bolt(2)
2
8
HB
M3x10 Cap Head Bolt**
4
*Sport version: plastic
**Sport version: Pitch Arms is built in the Main Blade Grips so there is no M3x10
Cap Head Bolts
(1) or four M3x4 Pivot Ball Stud; (2) or two M3x14 Cap Head Bolt
Note: Some Center Hubs are designed for one O-ring each side. If this is your case, use
one O-ring each side. The beveled edge of the Thrust Bearing Spacer (No. 11) should
be face away from the Center Hub. The flanges of the bearings of the Hiller Arms should
face outside. Usually the Thrust Bearing has three parts: two race washers and caged
ball bearings. The caged ball bearings will be between two race washers. In some cases,
you may get different version of the Thrust Bearing: one race washer, one flat washer,
and caged ball bearings in your kit. That is fine; it still works the same. In this case, you
need to install the flat washer first (next to Thrust Bearing Spacer-No. 11), then the
caged ball bearings, the race washer goes last.
Summary of Contents for Big Quick 50 Sport
Page 1: ...Page 1 of 79 2nd Version...
Page 7: ...Page 7 of 79 REQUIRED TOOLS...
Page 15: ...Page 15 of 79...
Page 36: ...Page 36 of 79...
Page 38: ...Note Engine Mount may look differently from the one in the kit Page 38 of 79...
Page 41: ...Page 41 of 79...
Page 46: ...Page 46 of 79...
Page 60: ...Page 60 of 79...
Page 61: ...Note the frame may look differently from the one in the kit Page 61 of 79...
Page 63: ...Page 63 of 79...
