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DFARS Specialty Metals
Export Control Classification Number (ECCN)
Spider Couplings
 |
With two hubs gripping a rubbery spider in the center, these couplings damp vibration and transfer torque while flexing to handle misaligned shafts. The metal hubs never touch each other, so there's no need for lubrication. Also known as Lovejoy® couplings. For a complete coupling, select two hubs and one spider or two hubs, one split spider, and one retaining ring. Choose components with the same trade size to ensure they'll fit together.
Hubs
 |
OD | Shaft Coupling Trade Size | Overall Lg. | Shaft Mount Type | Choose a Shaft Dia. | Each | |||
|---|---|---|---|---|---|---|---|---|
Keyed | ||||||||
Iron | ||||||||
| 3 21/64" | L110 | 4 7/32" | Set Screw | 1 5/8" | 6408K18 | 000000 | ||
| 3 3/4" | L150 | 4 1/2" | Set Screw | 1 5/8" | 6408K19 | 000000 | ||
| 4 1/2" | L190 | 4 7/8" | Set Screw | 1 5/8" | 6408K21 | 000000 | ||
| 5" | L225 | 5 11/32" | Set Screw | 1 5/8" | 6408K22 | 000000 | ||
303 Stainless Steel | ||||||||
| 3 21/64" | L110 | 4 7/32" | Set Screw | 1 5/8" | 2306K18 | 000000 | ||
Spiders
 |
Misalignment Capability | |||||||||
|---|---|---|---|---|---|---|---|---|---|
For Hub OD | Shaft Coupling Trade Size | Max. Rotation Speed, rpm | Max. Torque, in·lbf | Parallel | Angular | Each | |||
Buna-N | |||||||||
| 3 21/64", 85 mm | L110 | 5,000 | 790 | 0.015" | 1° | 6408K79 | 000000 | ||
| 3 3/4", 96 mm | L150 | 5,000 | 1,240 | 0.015" | 1° | 6408K81 | 00000 | ||
| 4 1/2", 115 mm | L190 | 5,000 | 1,725 | 0.015" | 1° | 6408K82 | 00000 | ||
| 5", 127 mm | L225 | 4,200 | 2,340 | 0.015" | 1° | 6408K62 | 00000 | ||
Polyurethane Rubber | |||||||||
| 3 21/64" | L110 | 3,600 | 1,185 | 0.015" | 1° | 2410K17 | 000000 | ||
| 3 3/4" | L150 | 3,600 | 1,860 | 0.015" | 1° | 2410K19 | 000000 | ||
Hytrel | |||||||||
| 3 21/64", 85 mm | L110 | 3,600 | 2,265 | 0.015" | 0.5° | 6408K97 | 000000 | ||
| 3 3/4", 96 mm | L150 | 3,600 | 3,705 | 0.015" | 0.5° | 6408K98 | 000000 | ||
| 4 1/2", 115 mm | L190 | 5,000 | 4,680 | 0.015" | 0.5° | 6408K99 | 000000 | ||
| 5", 127 mm | L225 | 4,200 | 6,225 | 0.015" | 0.5° | 6408K64 | 000000 | ||
Split Spiders
 |
Unlike standard spiders, you can install these without using tools, removing hubs, or realigning shafts. Hold them in place with a retaining ring.
Polyurethane Rubber—Provide fair vibration damping and tear resistance.
Misalignment Capability | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
For Hub OD | Shaft Coupling Trade Size | Max. Rotation Speed, rpm | Max. Torque, in·lbf | Parallel | Angular | Temp. Range, ° F | Each | |||
Polyurethane Rubber | ||||||||||
| 3 21/64" | L110 | 5,900 | 2,180 | 0.03" | 2° | -30 to 200 | 2393K35 | 0000000 | ||
Retaining Rings
 |
Shaft Coupling Trade Size | For Hub OD | Each | |||
|---|---|---|---|---|---|
347 Stainless Steel | |||||
| L110 | 3 21/64" | 2393K25 | 0000000 | ||
High-Axial-Misalignment Sleeve Couplings
 |
Flex to handle axial misalignment with the gear-shaped sleeve while transmitting high torque at high speeds. The flexible sleeve between the hubs reduces vibration, absorbs shock, and prevents metal-to-metal contact, so there's no need for lubrication. For a complete coupling, select two hubs and one sleeve. Choose components with the same trade size to ensure they'll fit together.
Hubs
Sleeves
 |
Install these flexible, cylindrical sleeves between the hubs.
TPE—Flexible rubber that resists water and outdoor conditions.
EPDM—Flexible rubber that damps vibration.
Misalignment Capability | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
For Hub OD | Shaft Coupling Trade Size | Max. Rotation Speed, rpm | Max. Torque, in·lbf | Parallel | Angular | Axial | Each | |||
TPE | ||||||||||
| 4 5/8" | 7S | 5,250 | 725 | 0.02" | 1° | 0.125" | 6507K74 | 000000 | ||
| 5 29/64" | 8S | 4,500 | 1,135 | 0.02" | 1° | 0.125" | 6507K75 | 00000 | ||
| 6 23/64" | 9S | 3,750 | 1,800 | 0.025" | 1° | 0.125" | 6507K76 | 00000 | ||
| 7 1/2" | 10S | 3,600 | 2,875 | 0.025" | 1° | 0.125" | 6507K77 | 000000 | ||
EPDM | ||||||||||
| 8 5/8" | 11S | 3,600 | 4,530 | 0.032" | 1° | 0.125" | 6507K78 | 000000 | ||
High-Torque Spider Couplings
 |
With a thick split spider in the center, these transmit higher torque than standard split spider couplings. Connect them to pumps, mixers, and other equipment that generates heavy torque. The spider also prevents metal-to-metal contact between the hubs, so there's no need for lubrication. For a complete coupling, select two hubs, one split spider, and one split spider cover. Choose components with the same trade size to ensure they'll fit together.
Hubs
 |
OD | Shaft Coupling Trade Size | Overall Lg. | Shaft Mount Type | Choose a Shaft Dia. | Each | |||
|---|---|---|---|---|---|---|---|---|
Keyed | ||||||||
Steel | ||||||||
| 3 3/16" | QF25 | 4 29/32" | Set Screw | 1 5/8" | 3565N3 | 0000000 | ||
Split Spiders
 |
Unlike standard spiders, you can install these without using tools, removing hubs, or realigning shafts. Hold them in place with a retaining ring.
Urethane Rubber—Tough, with plastic-like tear resistance. Higher-durometer spiders are more rigid for more precise positioning, but they absorb less vibration.
Misalignment Capability | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
For Hub OD | Shaft Coupling Trade Size | Max. Rotation Speed, rpm | Max. Torque, in·lbf | Parallel | Angular | Axial | Temp. Range, ° F | Each | |||
Durometer 48D (Medium Soft) Urethane Rubber | |||||||||||
| 3 3/16" | QF25 | 7,000 | 3,425 | 0.039" | 2° | 0.116" | -60 to 212 | 3565N47 | 000000 | ||
Durometer 60D (Medium) Urethane Rubber | |||||||||||
| 3 3/16" | QF25 | 7,000 | 6,460 | 0.039" | 2° | 0.116" | -60 to 212 | 3565N49 | 00000 | ||
| 3 3/16" | QF25 | 7,000 | 6,460 | 0.039" | 2° | 0.116" | -60 to 350 | 3565N48 | 000000 | ||
Split Spider Covers
 |
Shaft Coupling Trade Size | For Hub OD | Each | |||
|---|---|---|---|---|---|
Steel | |||||
| QF25 | 3 3/16" | 3565N63 | 000000 | ||
High-Torque Chain Couplings
 |
A rugged roller chain locks onto teeth on the hubs to withstand high torque. Often found in conveyors, mixers, and crushers, these couplings also compensate for high angular misalignment. Lubricate to maintain smooth motion. For a complete coupling, select two hubs and one roller chain. Choose components of the same trade size to ensure they'll fit together.
Hubs
 |
The metal body mounts onto shafts to transmit torque from one shaft to the other through the flexible center.
Steel—Best for dry environments, since moisture will cause these hubs to rust.
Set-Screw Shaft Mount—Screws dig into your shaft for a secure hold.
Optional Nylon Covers—Withstand grease lubricant and protect hubs from abrasion and corrosion.
Roller Chain
 |
Lock onto teeth on the hubs to transmit high torque.
Steel—Best for dry environments, since moisture will cause this roller chain to rust.
Shock-Absorbing Grid Couplings
 |
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.
Grid Kits
 |
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 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 | 0000000 | 3395N113 | 0000000 | 3395N131 | 000000 | 8670T12 | 000000 | ||
| 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 | ||
High-Torque Sleeve Couplings
 |
With a steel sleeve and hubs, these transmit higher torque than other sleeve couplings. Lubricate to reduce friction between the teeth on the hubs and the grooves on the sleeve. For a complete coupling, select two hubs, one sleeve, and one seal kit. Choose components of the same trade size to ensure they'll fit together.
High-Misalignment Tire Couplings
 |
With a large, flexible rubber tire, these withstand the highest misalignment of any coupling while reducing vibration. For a complete coupling, select two hubs, one tire, and two bushings. Choose components of the same trade size to ensure they'll fit together.
Hubs
 |
The metal body mounts onto shafts to transmit torque from one shaft to the other through the flexible center.
Iron and Steel Hub—Best for dry environments, since moisture will cause these hubs to rust.
Clamp-On Shaft Mount—Grip shafts evenly without marring them and hold tighter than set screws. Tighten the clamping screws to secure.
Hubs | Quick-Disconnect Bushings | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
OD | Shaft Coupling Trade Size | Overall Lg. | Shaft Mount Type | Each | Bushing Trade No. | Choose a Shaft Diameter | Each | ||||
Iron and Steel Hub | |||||||||||
| 6 1/2" | L100 | 3 15/16" | Clamp On | 6241K12 | 000000 | SH | 1/2", 5/8", 11/16", 3/4", 7/8", 15/16", 1", 1 1/16", 1 1/8", 1 3/16", 1 1/4", 1 5/16", 1 3/8", 1 7/16", 1 1/2", 1 5/8", 1 11/16" | 6086K12 | 000000 | ||
| 7 3/8" | L110 | 4 3/16" | Clamp On | 6241K13 | 000000 | SH | 1/2", 5/8", 11/16", 3/4", 7/8", 15/16", 1", 1 1/16", 1 1/8", 1 3/16", 1 1/4", 1 5/16", 1 3/8", 1 7/16", 1 1/2", 1 5/8", 1 11/16" | 6086K12 | 00000 | ||
| 8 5/16" | L150 | 4 5/8" | Clamp On | 6241K14 | 000000 | SDS | 1/2", 9/16", 5/8", 3/4", 7/8", 15/16", 1", 1 1/16", 1 1/8", 1 3/16", 1 1/4", 1 5/16", 1 3/8", 1 7/16", 1 1/2", 1 9/16", 1 5/8", 1 11/16", 1 3/4", 1 7/8", 1 15/16", 2" | 6086K13 | 00000 | ||
| 9 1/4" | L190 | 5 11/16" | Clamp On | 6241K15 | 000000 | SK | 1/2", 5/8", 3/4", 7/8", 15/16", 1", 1 1/16", 1 1/8", 1 3/16", 1 1/4", 1 5/16", 1 3/8", 1 7/16", 1 1/2", 1 9/16", 1 5/8", 1 11/16", 1 3/4", 1 7/8", 1 15/16", 2", 2 1/8", 2 3/16", 2 1/4", 2 3/8", 2 7/16", 2 1/2", 2 5/8" | 6086K15 | 00000 | ||
Tires
 |
Fit these highly flexible rubber tires over the two hubs. They transmit torque, compensate for misalignment, and isolate shock and vibration.
Buna-N—Highly tear resistant.
Misalignment Capability | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
For Hub OD | Shaft Coupling Trade Size | Max. Rotation Speed, rpm | Max. Torque, in·lbf | Parallel | Angular | Axial | Each | |||
Buna-N | ||||||||||
| 6 1/2" | L100 | 4,000 | 1,800 | 0.125" | 4° | 0.313" | 6241K22 | 000000 | ||
| 7 3/8" | L110 | 3,600 | 2,200 | 0.125" | 4° | 0.313" | 6241K23 | 000000 | ||
| 8 5/16" | L150 | 3,100 | 3,600 | 0.125" | 4° | 0.313" | 6241K24 | 000000 | ||
| 9 1/4" | L190 | 2,800 | 4,350 | 0.125" | 4° | 0.313" | 6241K25 | 000000 | ||
Sleeve Couplings
 |
Transmit high torque with a sleeve that locks into the teeth of the hubs. The sleeve is strong and flexible enough to compensate for some misalignment, and it's lightweight to move with less energy. For a complete coupling, select two hubs and one sleeve. Choose components of the same trade size to ensure they'll fit together.
Hubs
 |
OD | Shaft Coupling Trade Size | Overall Lg. | For Shaft Type | Shaft Mount Type | Choose a Shaft Dia. | Each | |||
|---|---|---|---|---|---|---|---|---|---|
Steel | |||||||||
| 3 41/64" | GDX M042 | 3 3/8" | Keyed | Set Screw | 1 5/8" | 6247K27 | 0000000 | ||
Sleeves
 |
Misalignment Capability | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
For Hub OD | Shaft Coupling Trade Size | Max. Rotation Speed, rpm | Max. Torque, in·lbf | Parallel | Angular | Axial | Each | |||
Nylon | ||||||||||
| 3 41/64" | GDX M042 | 6,000 | 2,655 | 0.016" | 1° | 0.04" | 6247K37 | 000000 | ||
Bearing Adapter Sleeves
 |
Inch
Adapter Sleeve Trade Number | For Shaft Dia. | ID | Wd. | Includes | Each | |||
|---|---|---|---|---|---|---|---|---|
Low-Carbon Steel | ||||||||
| SNW-10 | 1 5/8" | 1 5/8" | 1.775" | Lock Nut, Lock Washer | 4449N15 | 000000 | ||
Two-Piece Shaft Collars
 |
For Round Shafts |
 |
For Keyed Shafts |
Attach these collars anywhere along your shaft, which helps when other components are already installed or you can't access the end. They clamp firmly and evenly without marring the shaft, so you can reposition or remove collars later.
Black-Oxide Carbon Steel—Dark and matted for a finished look, but with minimal corrosion resistance. Best for dry environments.
Zinc-Plated Carbon Steel—A step up from plain carbon steel collars, these withstand occasional exposure to moisture.
Chrome-Plated Carbon Steel—Resist moisture and mild cleaning solutions better than zinc-plated collars.
Carbon Steel—Strong and easy to machine. Use in dry environments, since moisture will cause steel to rust.
303 Stainless Steel—Withstand moisture and mild cleaning solutions, such as acetone and ammonia. These are easier to machine than other stainless steel collars.
316 Stainless Steel—More corrosion resistant than 303 stainless steel collars. These collars withstand salt water and harsh chemicals, such as bleach, chlorine, and phosphoric acid.
Aluminum—One-third the weight of steel and corrosion resistant.
For Round Shafts | For Keyed Shafts | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Clamping Screw | Keyway | |||||||||||
For Shaft Dia. | OD | Wd. | Type | No. Included | Each | Wd. | Dp. | Each | ||||
Black-Oxide Carbon Steel | ||||||||||||
| 1 5/8" | 2 3/4" | 11/16" | Socket Head | 2 | 6436K24 | 000000 | 3/8" | 5/32" | 3357K36 | 000000 | ||
Zinc-Plated Carbon Steel | ||||||||||||
| 1 5/8" | 2 5/8" | 11/16" | Socket Head | 2 | 2380K37 | 00000 | — | — | ——— | 0 | ||
Chrome-Plated Carbon Steel | ||||||||||||
| 1 5/8" | 2 3/4" | 11/16" | Socket Head | 2 | 3370K81 | 00000 | — | — | ——— | 0 | ||
Carbon Steel | ||||||||||||
| 1 5/8" | 2 3/4" | 11/16" | Socket Head | 2 | 9739T563 | 00000 | — | — | ——— | 0 | ||
303 Stainless Steel | ||||||||||||
| 1 5/8" | 2 3/4" | 11/16" | Socket Head | 2 | 6436K98 | 00000 | 3/8" | 5/32" | 3329K36 | 000000 | ||
316 Stainless Steel | ||||||||||||
| 1 5/8" | 2 3/4" | 11/16" | Socket Head | 2 | 9633T31 | 00000 | — | — | ——— | 0 | ||
Aluminum | ||||||||||||
| 1 5/8" | 2 3/4" | 11/16" | Socket Head | 2 | 6436K149 | 00000 | — | — | ——— | 0 | ||
Oversized Shaft Collars
 |
Clamping Screw | ||||||||
|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | OD | Wd. | Type | No. Included | Each | |||
Black-Oxide Carbon Steel | ||||||||
| 1 5/8" | 3 1/4" | 3/4" | Socket Head | 1 | 9951K49 | 000000 | ||
Hinged Shaft Collars
 |
Clamping Screw | ||||||||
|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | OD | Wd. | Type | No. Included | Each | |||
Black-Oxide Carbon Steel | ||||||||
| 1 5/8" | 3" | 5/8" | Socket Head | 1 | 57145K84 | 000000 | ||
Oversized Two-Piece Shaft Collars
 |
For Round Shafts |
Clamping Screw | For Round Shafts | |||||||
|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | OD | Wd. | Type | No. Included | Each | |||
Black-Oxide Carbon Steel | ||||||||
| 1 5/8" | 3 1/4" | 3/4" | Socket Head | 2 | 8386K49 | 000000 | ||
Plastic Two-Piece Shaft Collars
Set Screw Shaft Collars
 |
Set Screw | ||||||||
|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | OD | Wd. | Type | No. Included | Each | |||
Black-Oxide Carbon Steel | ||||||||
| 1 5/8" | 2 1/2" | 13/16" | Hex Socket | 1 | 9414T31 | 000000 | ||
Zinc-Plated Carbon Steel | ||||||||
| 1 5/8" | 2 1/2" | 13/16" | Hex Socket | 1 | 6432K36 | 00000 | ||
303 Stainless Steel | ||||||||
| 1 5/8" | 2 1/2" | 13/16" | Hex Socket | 1 | 6462K36 | 00000 | ||
316 Stainless Steel | ||||||||
| 1 5/8" | 2 1/2" | 13/16" | Hex Socket | 1 | 9943K41 | 00000 | ||
Aluminum | ||||||||
| 1 5/8" | 2 1/2" | 13/16" | Hex Socket | 1 | 9946K6 | 00000 | ||
Shaft Collars
 |
Clamping Screw | ||||||||
|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | OD | Wd. | Type | No. Included | Each | |||
Black-Oxide Carbon Steel | ||||||||
| 1 5/8" | 2 5/8" | 11/16" | Socket Head | 1 | 6435K24 | 000000 | ||
Zinc-Plated Carbon Steel | ||||||||
| 1 5/8" | 2 5/8" | 11/16" | Socket Head | 1 | 9961K37 | 00000 | ||
303 Stainless Steel | ||||||||
| 1 5/8" | 2 5/8" | 11/16" | Socket Head | 1 | 6435K68 | 00000 | ||
316 Stainless Steel | ||||||||
| 1 5/8" | 2 3/4" | 11/16" | Socket Head | 1 | 9421T27 | 00000 | ||
Aluminum | ||||||||
| 1 5/8" | 2 3/4" | 11/16" | Socket Head | 1 | 6157K39 | 00000 | ||
Chain and Belt Torque Limiters
 |  |  |
Torque Limiter Shown with Sprocket | Replacement Friction Lining |
Prevent damage from overloading. When overloaded, these limiters cause your sprocket or pulley to slip. Once the overload is removed, the limiters automatically reset. Set the torque within the range listed. Friction lining is between the hub and pressure plate.
Double Spring—Double-spring limiters have a second spring for handling nearly twice the torque of single-spring limiters.
Sprockets—Sprockets are designed specifically to fit their corresponding limiters. These hubless sprockets are not interchangeable.
Torque Limiters | Sprockets | Replacement Friction Lining | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Keyway | Torque, ft·lbf | |||||||||||||||||
For Shaft Dia. | OD | Overall Wd. | Wd. | Dp. | For Max. Sprocket or Pulley Wd. | Friction Lining Thk. | Min. | Max. | Hub Material | Each | Choose a Roller Chain Trade Number | Each | Each | |||||
Single Spring | ||||||||||||||||||
| 1 5/8" | 5" | 2 7/8" | 3/8" | 3/16" | 5/8" | 1/8" | 90 | 250 | Steel | 6524K158 | 0000000 | 40, 41, 50, 60, 80 | 6525K15 | 000000 | 6525K66 | 000000 | ||
| 1 5/8" | 6" | 3" | 3/8" | 3/16" | 13/16" | 1/8" | 24 | 320 | Steel | 6524K129 | 000000 | 40, 41, 50, 60, 80, 100 | 6525K33 | 000000 | 6525K73 | 00000 | ||
Double Spring | ||||||||||||||||||
| 1 5/8" | 5" | 2 7/8" | 3/8" | 3/16" | 5/8" | 1/8" | 120 | 400 | Steel | 6524K458 | 000000 | 40, 41, 50, 60, 80 | 6525K15 | 00000 | 6525K66 | 00000 | ||
| 1 5/8" | 6" | 3" | 3/8" | 3/16" | 3/4" | 1/8" | 26 | 440 | Steel | 6524K136 | 000000 | 40, 41, 50, 60, 80, 100 | 6525K33 | 000000 | 6525K73 | 00000 | ||
Quick-Release Shaft Collars with Lever
 |
Clamping Screw | ||||||||
|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | OD | Wd. | Type | No. Included | Each | |||
Black Anodized Aluminum | ||||||||
| 1 5/8" | 4" | 3/4" | Socket Head | 1 | 1511K243 | 0000000 | ||
Set Screw Two-Piece Shaft Collars
 |
Attach these traditional collars anywhere along a shaft when other components are already installed or you can't access the ends. Their set screw digs into the shaft for a tight, permanent hold, but one that leaves a gouge. For maximum holding power, make sure the set screw is harder than the shaft.
Black-Oxide Carbon Steel—Dark and matted for a finished look, but with minimal corrosion resistance. Best for dry environments.
Set Screw | Clamping Screw | Each | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | OD | Wd. | Type | No. Included | Type | No. Included | 1-24 | 25-Up | |||
Black-Oxide Carbon Steel | |||||||||||
| 1 5/8" | 2 3/4" | 11/16" | Hex Socket | 1 | Socket Head | 2 | 1069N69 | 000000 | 000000 | ||
Top-and-Bottom-Mount Two-Piece Shaft Collars
 |
Use the flat ends and tapped holes on these two-piece collars to attach components or stack additional top-and-bottom-mount collars. Add them anywhere on a shaft when other parts are already attached or you can't access the ends. The collars clamp firmly and evenly without marring the shaft, so you can reposition or remove them later.
Black-Oxide Carbon Steel—Dark and matted for a finished look, but with minimal corrosion resistance. Best for dry environments.
303 Stainless Steel—Withstand moisture and mild cleaning solutions, such as acetone and ammonia. These are easier to machine than other stainless steel collars.
Aluminum—One-third the weight of steel and corrosion resistant.
Clamping Screw | Mounting Holes | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | OD | Wd. | Flat-to-Flat Ht. | Type | No. Included | Mounting Fasteners Included | Thread Size | No. of | Each | |||
Black-Oxide Carbon Steel | ||||||||||||
| 1 5/8" | 2 5/8" | 11/16" | 2 7/16" | Socket Head | 2 | Yes | 5/16"-24 | 2 | 5878T51 | 0000000 | ||
303 Stainless Steel | ||||||||||||
| 1 5/8" | 2 5/8" | 11/16" | 2 7/16" | Socket Head | 2 | Yes | 5/16"-24 | 2 | 5878T53 | 000000 | ||
Aluminum | ||||||||||||
| 1 5/8" | 2 5/8" | 11/16" | 2 7/16" | Socket Head | 2 | Yes | 5/16"-24 | 2 | 5878T52 | 00000 | ||
