No other manufacturer offers such a wide variety of prop hubs for use on the VW engine.
All prop hubs are made from 4140 steel and have a beautiful black oxide finish.
All prop hubs feature a 5" diameter face with 6 each, 5/16" holes for the prop on 4" centers.
The prop pilot is 3/8" long and 2" in diameter.
Each prop hub kit includes a face plate, washer, bolt and cotter key if needed.
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about Prop Hub history!
| Shrink Fit Prop Hub |
| The Shrink fit Prop Hub is the oldest prop hub design currently made. This hub extends out 1.5" to the face of the hub from the engine when installed on the crankshaft. As its name implies, this is a shrink fit hub. It has approximately a .002" to .003" interference fit on the nose of the crankshaft. The hub is heated to about 400 F to install. The Shrink Fit Prob Hub features reverse threads that sling oil back into the case and eliminating the need for a seal. Torque to 80 ft. lbs. using red Locktite after sizing the bolt. Recommended use is with standard 69mm VW crankshafts and 1/2 VW engines and kits only. Will not fit Type 4. Shrink Fit Prop Hub Kit . . . $149.95 |
| Standard 3 Degree Tapered Prop Hub | |
| The Standard 3 Degree Tapered Prop Hub is used on Dragonfly's, KR's and others when using the standard 69mm VW crankshaft. The hub extends out about 2.5" from the engine case. The crankshaft must be tapered to receive this hub. The oil slinger must be modified by cutting 3 each 1/4" wide tabs on the I.D. of the oil slinger and bending them forward to engage the prop hub. In addition, a seal should always be used. The seal is attached to the nose of the case with JB Weld Epoxy Cement. Crankshaft should be deep drilled also, so retaining load is spread throughout the nose of the crankshaft. | |
| Standard Tapered Prop Hub Kit | $149.95 |
| Taper & deep drill stock 69mm VW crankshaft | $65.00 |
| Seal | $6.95 |
| Face Plate, if ordered separately | $7.95 |
| Force One Prop Hub and Main Bearing |
| The GPASC Force One Prop Hub and Main Bearing are the ultimate choice for reliability and durability. This combination must be used on all 78 - 82mm crankshafts, all Type 4 crankshafts and can be used on stock 69mm crankshafts for increased reliability. The Force One Kit provides over 4 times the radial load bearing area than a standard VW bearing. In addition, because the prop hub rides in the bearing the effective diameter of the crankshaft nose is increased by over 50%. Your Type 1 or Type 4 engine case will need to be machined to use the Force One Kit. The Force One Prop Hub extends out about 3.5" from the engine case. You need to order the Hub, bearing and seal kit for a complete unit. |
| Type 1 | Type 4 | |
| Force One Prop Hub | $229.95 | $229.95 |
| Force One Main Bearing | $84.95 | $94.95 |
| Force One Seal Kit | $15.95 | $15.95 |
| Taper Crankshaft for Force One Prop Hub | $75.00 | $195.00* |
| Machine case for Force One Main Bearing Type 1 | $65.00 | $79.00 |
| * For Type 4: Taper Crankshaft for Force One Prop Hub includes tapered spacer, taper, new key way, deep drill, taping nose for 1/2" thread, bolt and washer. | ||
| Replacement 4130 Heat Treated Prop Hub Washer (for shrink fit & standard taper hubs) |
$2.95 |
| Prop Hub Seal for standard taper hub | $6.95 |
| Face Plate | $7.95 |
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To place an order: Call us at 1-800-922-6507 (US Only)
Questions at 1-402-493-6507
Fax us at 402-493-3846.
Inquiries can also be directed to:
gpasc@earthlink.net
Great Plains Aircraft Supply Co., Inc.
P.O. Box 545
Boys Town, NE 68010
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