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Shock-Absorbing Grid Couplings
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A strip of flexible spring steel (known as a grid) absorbs sudden load increases from motor startups, emergency braking, and other shock loads. They're commonly found in wire drawing and cutting machines, pulverizers, and mixers. For a complete coupling, select two hubs and a grid kit. Choose components of the same trade size to ensure they'll fit together.
Hubs
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The metal body mounts onto shafts to transmit torque from one shaft to the other through the flexible center.
Black-Oxide Steel—Typically chosen for their appearance, these hubs have a dark, matte coating that creates a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
Set-Screw Shaft Mount—Screws dig into your shaft for a secure hold.
OD | Shaft Coupling Trade Size | Overall Lg. | For Shaft Type | Shaft Mount Type | Choose a Shaft Dia. | Each | |||
|---|---|---|---|---|---|---|---|---|---|
Black-Oxide Steel | |||||||||
| 2 9/32" | 1020T | 3 7/8" | Keyed | Set Screw | 5/8", 3/4", 7/8", 1" | 3395N1 | 0000000 | ||
| 2 21/32" | 1030T | 3 7/8" | Keyed | Set Screw | 7/8", 1", 1 1/8", 1 3/8" | 3395N2 | 000000 | ||
| 2 31/32" | 1040T | 4 1/8" | Keyed | Set Screw | 7/8", 1 1/8", 1 1/2", 1 5/8" | 3395N3 | 000000 | ||
| 3 19/32" | 1050T | 4 7/8" | Keyed | Set Screw | 7/8", 1 1/8", 1 7/16", 1 1/2", 1 5/8", 1 3/4", 1 7/8" | 3395N4 | 000000 | ||
| 4 3/32" | 1060T | 5 1/8" | Keyed | Set Screw | 1", 1 3/8", 1 1/2", 1 5/8", 1 7/8", 2 1/8" | 3395N5 | 000000 | ||
| 5 19/32" | 1080T | 7 1/8" | Keyed | Set Screw | 2 7/8" | 3395N76 | 000000 | ||
| 6 11/32" | 1090T | 7 7/8" | Keyed | Set Screw | 2 1/4", 2 3/8" | 3395N8 | 000000 | ||
Grid Kits
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The grid wraps around the teeth of both hubs to spread the force of starts, stops, and reversals. When the shock load hits, the grid flexes to spread out the load. After the load passes, the grid straightens back out.
Spring Steel—Use these hard, rigid grids for high-stress applications. They're best for dry environments, since moisture will cause them to rust.
Grid Kits | Replacement Grids | Replacement Seals | Additional Grease | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Misalignment Capability | ||||||||||||||||
For Hub OD | Shaft Coupling Trade Size | Max. Rotation Speed, rpm | Max. Torque, in·lbf | Parallel | Angular | Includes | Each | Each | Each | Each | ||||||
Spring Steel | ||||||||||||||||
| 2 9/32" | 1020T | 4,500 | 460 | 0.012" | 0.25° | One Grid, One Two-Piece Grid Cover, Two Paper Gaskets, Two Rubber Seals, Fasteners, Grease | 3395N119 | 0000000 | 3395N111 | 000000 | 3395N128 | 000000 | 8670T12 | 000000 | ||
| 2 21/32" | 1030T | 4,500 | 1,320 | 0.012" | 0.25° | One Grid, One Two-Piece Grid Cover, Two Paper Gaskets, Two Rubber Seals, Fasteners, Grease | 3395N121 | 000000 | 3395N112 | 000000 | 3395N129 | 00000 | 8670T12 | 00000 | ||
| 2 31/32" | 1040T | 4,500 | 2,200 | 0.012" | 0.25° | One Grid, One Two-Piece Grid Cover, Two Paper Gaskets, Two Rubber Seals, Fasteners, Grease | 3395N122 | 000000 | 3395N113 | 000000 | 3395N131 | 00000 | 8670T12 | 00000 | ||
| 3 19/32" | 1050T | 4,500 | 3,850 | 0.016" | 0.25° | One Grid, One Two-Piece Grid Cover, Two Paper Gaskets, Two Rubber Seals, Fasteners, Grease | 3395N123 | 000000 | 3395N114 | 000000 | 3395N132 | 00000 | 8670T12 | 00000 | ||
| 4 3/32" | 1060T | 4,350 | 6,050 | 0.016" | 0.25° | One Grid, One Two-Piece Grid Cover, Two Paper Gaskets, Two Rubber Seals, Fasteners, Grease | 3395N124 | 000000 | 3395N115 | 000000 | 3395N133 | 00000 | 8670T12 | 00000 | ||
| 5 19/32" | 1080T | 3,600 | 18,150 | 0.016" | 0.25° | One Grid, One Two-Piece Grid Cover, Two Paper Gaskets, Two Rubber Seals, Fasteners, Grease | 3395N126 | 000000 | 3395N117 | 000000 | 3395N135 | 00000 | 8670T12 | 00000 | ||
| 6 11/32" | 1090T | 3,600 | 33,000 | 0.016" | 0.25° | One Grid, One Two-Piece Grid Cover, Two Paper Gaskets, Two Rubber Seals, Fasteners, Grease | 3395N127 | 000000 | 3395N118 | 000000 | 3395N136 | 00000 | 8670T12 | 00000 | ||
