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Bore Reducers
 |  |
With Flange |
Instead of replacing your shaft or keeping components, such as couplings, with various bore diameters on hand, these reducers adapt the bore of a component to a smaller size. Slide the reducer into the bore and use your component’s set screws or clamping mechanism to secure the shaft.
Flange—Reducers with a flange prevent you from inserting them too far into the bore.
Flange, mm | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
For Bore Dia. | For Shaft Dia. | Lg. | OD | Thk. | Max. Rotation Speed, rpm | Max. Torque | Material | Features | Each | ||
| 1/4" | 1/8" | 0.221" | — | — | 10,000 | Not Rated | Stainless Steel | — | 4239N11 | 000000 | |
| 1/4" | 3/16" | 0.221" | — | — | 10,000 | Not Rated | Stainless Steel | — | 4239N12 | 00000 | |
| 1/4" | 5 mm | 0.221" | — | — | 10,000 | Not Rated | Stainless Steel | — | 4239N13 | 00000 | |
| 1/2" | 1/4" | 0.449" | — | — | 10,000 | Not Rated | Stainless Steel | — | 4239N15 | 00000 | |
| 1/2" | 5/16" | 0.449" | — | — | 10,000 | Not Rated | Stainless Steel | — | 4239N16 | 00000 | |
| 1/2" | 3/8" | 0.449" | — | — | 10,000 | Not Rated | Stainless Steel | — | 4239N18 | 00000 | |
| 1/2" | 5 mm | 0.42" | 13.59 | 0.46 | 5,000 | Not Rated | Aluminum | Flange | 4239N39 | 00000 | |
| 1/2" | 6 mm | 0.449" | — | — | 10,000 | Not Rated | Stainless Steel | — | 4239N14 | 00000 | |
| 1/2" | 8 mm | 0.449" | — | — | 10,000 | Not Rated | Stainless Steel | — | 4239N17 | 00000 | |
| 1/2" | 10 mm | 0.449" | — | — | 10,000 | Not Rated | Stainless Steel | — | 4239N19 | 00000 | |
| 5/8" | 1/2" | 0.46" | — | — | 10,000 | Not Rated | Stainless Steel | — | 4239N23 | 00000 | |
| 5/8" | 10 mm | 0.46" | — | — | 10,000 | Not Rated | Stainless Steel | — | 4239N21 | 00000 | |
| 5/8" | 12 mm | 0.46" | — | — | 10,000 | Not Rated | Stainless Steel | — | 4239N22 | 00000 | |
| 3/4" | 3/8" | 0.646" | — | — | 10,000 | Not Rated | Stainless Steel | — | 4239N24 | 00000 | |
| 3/4" | 1/2" | 0.646" | — | — | 10,000 | Not Rated | Stainless Steel | — | 4239N26 | 00000 | |
| 3/4" | 5/8" | 0.646" | — | — | 10,000 | Not Rated | Stainless Steel | — | 4239N27 | 00000 | |
| 3/4" | 12 mm | 0.646" | — | — | 10,000 | Not Rated | Stainless Steel | — | 4239N25 | 00000 | |
| 3/4" | 16 mm | 0.646" | — | — | 10,000 | Not Rated | Stainless Steel | — | 4239N28 | 00000 | |
| 7/8" | 5/8" | 0.755" | — | — | 10,000 | Not Rated | Stainless Steel | — | 4239N29 | 00000 | |
| 7/8" | 3/4" | 0.755" | — | — | 10,000 | Not Rated | Stainless Steel | — | 4239N31 | 00000 | |
| 1" | 5/8" | 0.773" | — | — | 10,000 | Not Rated | Stainless Steel | — | 4239N32 | 00000 | |
| 1" | 3/4" | 0.773" | — | — | 10,000 | Not Rated | Stainless Steel | — | 4239N33 | 00000 | |
| 1" | 7/8" | 0.773" | — | — | 10,000 | Not Rated | Stainless Steel | — | 4239N35 | 00000 | |
| 1" | 20 mm | 0.773" | — | — | 10,000 | Not Rated | Stainless Steel | — | 4239N34 | 00000 | |
| 1 1/4" | 1" | 0.793" | — | — | 10,000 | Not Rated | Stainless Steel | — | 4239N37 | 00000 | |
| 1 1/4" | 25 mm | 0.793" | — | — | 10,000 | Not Rated | Stainless Steel | — | 4239N36 | 00000 | |
| 10 mm | 1/4" | 0.32" | 10.83 | 0.44 | 5,000 | Not Rated | Aluminum | Flange | 4239N38 | 00000 | |
| 16 mm | 1/4" | 0.52" | 16.88 | 0.46 | 5,000 | Not Rated | Aluminum | Flange | 4239N41 | 00000 | |
| 16 mm | 3/8" | 0.52" | 16.88 | 0.46 | 5,000 | Not Rated | Aluminum | Flange | 4239N42 | 00000 | |
| 16 mm | 1/2" | 0.52" | 16.88 | 0.46 | 5,000 | Not Rated | Aluminum | Flange | 4239N43 | 00000 | |
| 20 mm | 3/8" | 0.79" | 20.87 | 0.45 | 5,000 | Not Rated | Aluminum | Flange | 4239N44 | 00000 | |
Light Duty Sleeve Bushings
 |
For Shaft Dia. | OD | Overall Wd. | Set Screw Hole Dia. | Each | |||
|---|---|---|---|---|---|---|---|
Steel | |||||||
| 1/4" | 1/2" | 1 1/8" | 3/8" | 6420K12 | 00000 | ||
| 5/16" | 1/2" | 1 1/8" | 3/8" | 6420K13 | 0000 | ||
| 3/8" | 1/2" | 1 1/8" | 3/8" | 6420K14 | 0000 | ||
| 7/16" | 1/2" | 1 1/8" | 3/8" | 6420K15 | 00000 | ||
| 1/2" | 5/8" | 1 1/8" | 3/8" | 6420K17 | 0000 | ||
| 1/2" | 3/4" | 1 1/4" | 7/16" | 6420K18 | 0000 | ||
| 5/8" | 3/4" | 1 1/4" | 3/8" | 6420K19 | 0000 | ||
| 5/8" | 1" | 1 1/4" | 7/16" | 6420K23 | 00000 | ||
| 3/4" | 1" | 1 1/4" | 7/16" | 6420K24 | 00000 | ||
| 7/8" | 1" | 1 1/4" | 7/16" | 6420K25 | 00000 | ||
Self-Adjusting Spring Bushings
 |
OD | Overall Wd. | Material | Each | |||
|---|---|---|---|---|---|---|
For 1/2" Diameter Shafts | ||||||
| 3/4" | 1/2" | Steel | 58365K85 | 000000 | ||
| 3/4" | 3/4" | Steel | 58365K31 | 00000 | ||
| 3/4" | 1" | Steel | 58365K32 | 00000 | ||
For 3/4" Diameter Shafts | ||||||
| 1" | 1/2" | Steel | 58365K33 | 0000 | ||
| 1" | 5/8" | Steel | 58365K101 | 0000 | ||
| 1" | 3/4" | Steel | 58365K11 | 0000 | ||
| 1" | 1" | Steel | 58365K12 | 0000 | ||
| 1" | 1 1/4" | Steel | 58365K34 | 0000 | ||
| 1" | 1 1/2" | Steel | 58365K13 | 0000 | ||
| 1" | 2" | Steel | 58365K35 | 00000 | ||
For 1" Diameter Shafts | ||||||
| 1 1/4" | 1/2" | Steel | 58365K36 | 0000 | ||
| 1 1/4" | 5/8" | Steel | 58365K37 | 0000 | ||
| 1 1/4" | 3/4" | Steel | 58365K38 | 0000 | ||
| 1 1/4" | 7/8" | Steel | 58365K39 | 0000 | ||
| 1 1/4" | 1" | Steel | 58365K14 | 0000 | ||
| 1 1/4" | 1 1/4" | Steel | 58365K41 | 0000 | ||
| 1 1/4" | 1 1/2" | Steel | 58365K15 | 0000 | ||
| 1 1/4" | 2" | Steel | 58365K16 | 00000 | ||
| 1 1/4" | 2 1/2" | Steel | 58365K102 | 00000 | ||
| 1 1/4" | 3" | Steel | 58365K103 | 00000 | ||
| 1 3/8" | 3/4" | Steel | 58365K104 | 00000 | ||
| 1 3/8" | 1" | Steel | 58365K106 | 00000 | ||
| 1 3/8" | 1 1/4" | Steel | 58365K105 | 00000 | ||
| 1 1/2" | 1" | Steel | 58365K107 | 00000 | ||
| 1 1/2" | 1 1/2" | Steel | 58365K108 | 00000 | ||
For 1 1/8" Diameter Shafts | ||||||
| 1 3/8" | 1" | Steel | 58365K43 | 00000 | ||
| 1 3/8" | 1 1/2" | Steel | 58365K44 | 00000 | ||
For 1 1/4" Diameter Shafts | ||||||
| 1 1/2" | 1/2" | Steel | 58365K45 | 0000 | ||
| 1 1/2" | 3/4" | Steel | 58365K46 | 0000 | ||
| 1 1/2" | 1" | Steel | 58365K17 | 0000 | ||
| 1 1/2" | 1 1/4" | Steel | 58365K47 | 0000 | ||
| 1 1/2" | 1 1/2" | Steel | 58365K18 | 00000 | ||
| 1 1/2" | 2" | Steel | 58365K19 | 00000 | ||
| 1 1/2" | 2 1/2" | Steel | 58365K48 | 00000 | ||
| 1 1/2" | 3" | Steel | 58365K49 | 00000 | ||
| 1 5/8" | 1" | Steel | 58365K109 | 00000 | ||
| 1 5/8" | 1 1/4" | Steel | 58365K111 | 00000 | ||
| 1 5/8" | 1 1/2" | Steel | 58365K112 | 00000 | ||
| 1 5/8" | 2" | Steel | 58365K113 | 00000 | ||
For 1 3/8" Diameter Shafts | ||||||
| 1 5/8" | 1 1/2" | Steel | 58365K114 | 00000 | ||
| 1 3/4" | 1 1/4" | Steel | 58365K51 | 00000 | ||
| 1 3/4" | 1 1/2" | Steel | 58365K52 | 00000 | ||
| 1 3/4" | 2" | Steel | 58365K53 | 00000 | ||
For 1 1/2" Diameter Shafts | ||||||
| 1 3/4" | 1/2" | Steel | 58365K54 | 0000 | ||
| 1 3/4" | 3/4" | Steel | 58365K55 | 0000 | ||
| 1 3/4" | 1" | Steel | 58365K56 | 00000 | ||
| 1 3/4" | 1 1/4" | Steel | 58365K57 | 00000 | ||
| 1 3/4" | 1 1/2" | Steel | 58365K21 | 00000 | ||
| 1 3/4" | 2" | Steel | 58365K58 | 00000 | ||
| 1 3/4" | 2 1/2" | Steel | 58365K59 | 00000 | ||
| 1 3/4" | 2 3/4" | Steel | 58365K61 | 00000 | ||
| 1 7/8" | 3/4" | Steel | 58365K115 | 00000 | ||
| 1 7/8" | 1" | Steel | 58365K116 | 00000 | ||
| 1 7/8" | 1 1/4" | Steel | 58365K117 | 00000 | ||
| 1 7/8" | 1 1/2" | Steel | 58365K118 | 00000 | ||
| 1 7/8" | 2" | Steel | 58365K119 | 00000 | ||
| 2" | 1" | Steel | 58365K121 | 00000 | ||
| 2" | 1 1/4" | Steel | 58365K122 | 00000 | ||
| 2" | 1 1/2" | Steel | 58365K123 | 00000 | ||
| 2" | 2" | Steel | 58365K124 | 00000 | ||
| 2" | 3" | Steel | 58365K125 | 00000 | ||
For 1 3/4" Diameter Shafts | ||||||
| 2" | 1" | Steel | 58365K62 | 00000 | ||
| 2" | 1 1/4" | Steel | 58365K63 | 00000 | ||
| 2" | 1 1/2" | Steel | 58365K64 | 00000 | ||
| 2" | 2" | Steel | 58365K126 | 00000 | ||
For 2" Diameter Shafts | ||||||
| 2 1/4" | 1" | Steel | 58365K132 | 00000 | ||
| 2 1/4" | 1 1/2" | Steel | 58365K65 | 00000 | ||
| 2 1/4" | 2" | Steel | 58365K66 | 00000 | ||
| 2 1/4" | 2 1/2" | Steel | 58365K28 | 00000 | ||
| 2 1/4" | 3" | Steel | 58365K133 | 00000 | ||
| 2 3/8" | 3/4" | Steel | 58365K127 | 00000 | ||
| 2 3/8" | 1" | Steel | 58365K128 | 00000 | ||
| 2 3/8" | 1 1/4" | Steel | 58365K129 | 00000 | ||
| 2 3/8" | 1 1/2" | Steel | 58365K131 | 00000 | ||
| 2 3/8" | 2" | Steel | 58365K134 | 00000 | ||
| 2 3/8" | 3" | Steel | 58365K135 | 00000 | ||
| 2 1/2" | 1" | Steel | 58365K67 | 00000 | ||
| 2 1/2" | 1 1/2" | Steel | 58365K68 | 00000 | ||
| 2 1/2" | 2" | Steel | 58365K69 | 00000 | ||
| 2 1/2" | 2 1/2" | Steel | 58365K71 | 00000 | ||
| 2 1/2" | 3" | Steel | 58365K72 | 00000 | ||
For 2 1/2" Diameter Shafts | ||||||
| 3" | 1 1/2" | Steel | 58365K74 | 00000 | ||
| 3" | 2" | Steel | 58365K75 | 00000 | ||
| 3" | 3" | Steel | 58365K77 | 00000 | ||
For 3" Diameter Shafts | ||||||
| 3 1/2" | 1 1/2" | Steel | 58365K79 | 00000 | ||
| 3 1/2" | 2" | Steel | 58365K81 | 00000 | ||
| 3 1/2" | 2 1/2" | Steel | 58365K82 | 00000 | ||
| 3 1/2" | 3" | Steel | 58365K83 | 00000 | ||
Bearing Adapter Sleeves
 |
Inch
Adapter Sleeve Trade Number | For Shaft Dia. | ID | Wd. | Includes | Each | |||
|---|---|---|---|---|---|---|---|---|
Low-Carbon Steel | ||||||||
| SNW-06 | 15/16" | 15/16" | 1.343" | Lock Nut, Lock Washer | 4449N27 | 000000 | ||
| SNW-07 | 1 1/8" | 1 1/8" | 1.469" | Lock Nut, Lock Washer | 4449N11 | 00000 | ||
| SNW-07 | 1 3/16" | 1 3/16" | 1.449" | Lock Nut, Lock Washer | 4449N28 | 00000 | ||
| SNW-08 | 1 1/4" | 1 1/4" | 1.514" | Lock Nut, Lock Washer | 4449N12 | 00000 | ||
| SNW-08 | 1 3/8" | 1 3/8" | 1.514" | Lock Nut, Lock Washer | 4449N13 | 00000 | ||
| SNW-09 | 1 5/16" | 1 5/16" | 1.574" | Lock Nut, Lock Washer | 4449N29 | 00000 | ||
| SNW-09 | 1 3/8" | 1 3/8" | 1.594" | Lock Nut, Lock Washer | 4449N14 | 00000 | ||
| SNW-09 | 1 7/16" | 1 7/16" | 1.574" | Lock Nut, Lock Washer | 4449N31 | 00000 | ||
| SNW-09 | 1 1/2" | 1 1/2" | 2.123" | Lock Nut, Lock Washer | 4449N32 | 00000 | ||
| SNW-10 | 1 5/8" | 1 5/8" | 1.775" | Lock Nut, Lock Washer | 4449N15 | 00000 | ||
| SNW-10 | 1 11/16" | 1 11/16" | 1.755" | Lock Nut, Lock Washer | 4449N33 | 00000 | ||
| SNW-11 | 1 3/4" | 1 3/4" | 1.855" | Lock Nut, Lock Washer | 4449N16 | 00000 | ||
| SNW-11 | 1 15/16" | 1 15/16" | 1.855" | Lock Nut, Lock Washer | 4449N17 | 00000 | ||
| SNW-13 | 2 3/16" | 2 3/16" | 2.09" | Lock Nut, Lock Washer | 4449N34 | 00000 | ||
Metric
Adapter Sleeve Trade Number | For Shaft Dia., mm | ID, mm | Wd., mm | Includes | Each | |||
|---|---|---|---|---|---|---|---|---|
Low-Carbon Steel | ||||||||
| H 206 | 25 | 25 | 27 | Lock Nut, Lock Washer | 4449N18 | 000000 | ||
| H 207 | 30 | 30 | 29 | Lock Nut, Lock Washer | 4449N19 | 00000 | ||
| H 208 | 35 | 35 | 31 | Lock Nut, Lock Washer | 4449N21 | 00000 | ||
| H 305 | 20 | 20 | 29 | Lock Nut, Lock Washer | 4449N22 | 00000 | ||
| H 308 | 35 | 35 | 36 | Lock Nut, Lock Washer | 4449N23 | 00000 | ||
| H 309 | 40 | 40 | 39 | Lock Nut, Lock Washer | 4449N24 | 00000 | ||
| H 311 | 50 | 50 | 45 | Lock Nut, Lock Washer | 4449N25 | 00000 | ||
| H 2306 | 25 | 25 | 38 | Lock Nut, Lock Washer | 7835T147 | 00000 | ||
| H 2307 | 30 | 30 | 43 | Lock Nut, Lock Washer | 7835T149 | 00000 | ||
| H 2308 | 35 | 35 | 46 | Lock Nut, Lock Washer | 7835T152 | 00000 | ||
| H 2309 | 40 | 40 | 50 | Lock Nut, Lock Washer | 7835T154 | 00000 | ||
| H 2310 | 45 | 45 | 55 | Lock Nut, Lock Washer | 7835T156 | 00000 | ||
| H 2311 | 50 | 50 | 59 | Lock Nut, Lock Washer | 4449N26 | 00000 | ||
| H 2312 | 55 | 55 | 62 | Lock Nut, Lock Washer | 7835T161 | 000000 | ||
| H 2313 | 60 | 60 | 65 | Lock Nut, Lock Washer | 7835T164 | 00000 | ||
Quick-Grip Flanged Hydraulic Bushings
 |
 |
Tighten just one set screw to clamp these bushings evenly around your shaft. The screw forces hydraulic fluid in between the double-walled sleeve, expanding the two walls against the shaft and the hub of your sprocket, pulley, or gear for a tight hold. Since you don’t have to tighten multiple screw clamps individually, these bushings are quick to adjust and more likely to stay aligned on your shaft. They’re also good for shock loads. A mounting flange prevents movement during tightening. Use a hex key to tighten.
Note: To avoid deforming the sleeve walls, make sure to fully tighten the screw.
17-4 PH Stainless Steel—17-4 PH stainless steel bushings have excellent corrosion resistance in most environments.
Set Screw | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | OD | Overall Wd. | Hole Dia. | Thread Size | Max. Torque, in·lbf | Fastener Tightening Torque, in·lbf | Each | |||
Steel | ||||||||||
| 5/8" | 1 7/8" | 1 9/16" | 3/8" | M10 | 460 | 40 | 7636N11 | 0000000 | ||
| 3/4" | 2" | 1 5/8" | 3/8" | M10 | 750 | 40 | 7636N12 | 000000 | ||
| 7/8" | 2 3/16" | 1 13/16" | 3/8" | M10 | 1,150 | 40 | 7636N13 | 000000 | ||
| 1" | 2 5/16" | 1 15/16" | 3/8" | M10 | 1,650 | 40 | 7636N14 | 000000 | ||
| 1 1/8" | 2 1/2" | 2 1/16" | 3/8" | M10 | 2,550 | 40 | 7636N15 | 000000 | ||
| 1 1/4" | 2 11/16" | 2 3/16" | 3/8" | M10 | 3,800 | 40 | 7636N16 | 000000 | ||
| 1 1/2" | 3 5/16" | 2 13/16" | 5/8" | M16 | 7,850 | 180 | 7636N17 | 000000 | ||
| 20 mm | 51 mm | 44 mm | 3/8" | M10 | 970 | 40 | 7636N18 | 000000 | ||
| 30 mm | 64 mm | 54 mm | 3/8" | M10 | 3,350 | 40 | 7636N19 | 000000 | ||
| 40 mm | 86 mm | 75 mm | 5/8" | M16 | 9,700 | 180 | 7636N21 | 000000 | ||
| 50 mm | 98 mm | 80 mm | 5/8" | M16 | 16,800 | 180 | 7636N22 | 000000 | ||
17-4 PH Stainless Steel | ||||||||||
| 3/4" | 2" | 1 5/8" | 3/8" | M10 | 750 | 40 | 7636N23 | 000000 | ||
| 7/8" | 2 3/16" | 1 13/16" | 3/8" | M10 | 1,150 | 40 | 7636N24 | 000000 | ||
| 1" | 2 5/16" | 1 15/16" | 3/8" | M10 | 1,650 | 40 | 7636N25 | 000000 | ||
| 1 1/4" | 2 11/16" | 2 3/16" | 3/8" | M10 | 3,800 | 40 | 7636N26 | 000000 | ||
| 1 1/2" | 3 5/16" | 2 13/16" | 5/8" | M16 | 7,850 | 180 | 7636N27 | 00000000 | ||
| 20 mm | 51 mm | 44 mm | 3/8" | M10 | 970 | 40 | 7636N28 | 000000 | ||
| 30 mm | 64 mm | 54 mm | 3/8" | M10 | 3,350 | 40 | 7636N29 | 000000 | ||
| 40 mm | 86 mm | 75 mm | 5/8" | M16 | 9,700 | 180 | 7636N31 | 00000000 | ||
| 50 mm | 98 mm | 80 mm | 5/8" | M16 | 16,800 | 180 | 7636N32 | 00000000 | ||
