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    The DI Type coupling has a “Drop-In” spacer assembly that is assembled at the factory. The coupling consists of two hubs and a spacer assembly comprising of the spacer, two unitized disc packs, and two guard rings. The disc packs are bolted to the spacer and guard rings at the factory using the torque values recommended by Lovejoy for the disc pack bolts. With the hubs mounted on the shafts, the entire disc pack assembly can be “Dropped In” place between the two hubs. The hubs are piloted to ensure proper centering of the spacer assembly. This piloting serves as an anti-flail feature and aids in the coupling’s ability to meet the balance standards mandated by API. This style coupling is designed to meet the balance and anti-flail requirements specified in API-610.

    Oversized, or Jumbo, hubs are available for use with the DI Type coupling to allow for larger bore sizes on most DI coupling sizes. This allows for the use of smaller DI couplings in applications where a smaller size coupling can still accommodate the application torque.
    Note: Bolt kits are generally INCLUDED when ordering a DI type hub. Unless ordered as a replacement part, bolt kits are generally not ordered as a stand alone item.
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Coupling Size

Part Number


Overall Length

Coupling Size

69790494932 N/A DI90-6 JUMBO HUB BOLT KIT N/A 6.25 in159.00 mm N/A 90-6
69790493102 N/A DI110-6 JUMBO HUB BOLT KIT N/A 8.19 in208 mm N/A 110-6
69790493103 N/A DI132-6 JUMBO HUB BOLT KIT N/A 9.100 in231 mm N/A 132-6
69790493104 N/A DI158-6 JUMBO HUB BOLT KIT N/A 11.02 in280 mm N/A 158-6
69790493105 N/A DI185-6 JUMBO HUB BOLT KIT N/A 12.610 in320.00 mm N/A 185-6
69790493106 N/A DI202-6 JUMBO HUB BOLT KIT N/A 14.39 in366 mm N/A 202-6
69790493107 N/A DI228-6 JUMBO HUB BOLT KIT N/A 15.940 in405.00 mm N/A 228-6
69790493108 N/A DI255-6 JUMBO HUB BOLT KIT N/A 18.940 in481.00 mm N/A 255-6
69790493109 N/A DI278-6 JUMBO HUB BOLT KIT N/A 19.900 in505.00 mm N/A 278-6
69790493110 N/A DI302-6 JUMBO HUB BOLT KIT N/A 21.680 in551.00 mm N/A 302-6
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