category
- Open Gears 2,619
- Worm Gear Reducers 2,088
- Plain Bearings 2,065
- Sprockets 1,389
- Sheaves & Pulleys 459
- Pneumatic Cylinders 341
- Synchronous (Timing) Belts 228
- Chain 227
- Rod Ends 220
- Bevel Gear Reducers 206
- Shaft Collars 180
- Flange Units 117
- Pillow Blocks 105
- Ball Bearings 95
- Jaw Couplings 67
- AC Motors & Accessories 64
- Helical 54
- Universal Joints 44
- Roller Bearings 38
- Bearing Inserts 23
- Elastomeric Couplings 18
- Flow Controls & Pressure Regulators 15
- Mufflers & Silencers 13
- Specialty Valves 11
- Take-Ups 11
- Reducer Accessories 9
- Tensioners, Tighteners & Idlers 9
- Hydraulic Cylinders 8
- Torque Limiters & Accessories 6
- DC Motors & Accessories 2
- Hand Tools 1
InchMetric
Belt Size
Flange Type
Boston Gear
G1020
-
mac
G1020 | Single Lead Worm Gear
Item #101774819
- 48 Diametral Pitch, 40 Teeth, 14.5 Pressure Angle, RH, Single Thread, Bronze Worm Gear

Boston Gear
40B13-3/4
-
mac
40B13-3/4 | Finished Bore Sprocket
Item #101835563
- 40 Chain, 13 Tooth, 0.75 in Bore, With Keyway and Setscrew

Boston Gear
40B26-1 1/2
-
mac
40B26-1 1/2 | Finished Bore Sprocket
Item #101794658
- 40 Chain, 26 Tooth, 1.5 in Bore, With Keyway and Setscrew

Boston Gear
HQCWC726-2000-B5-H-P20 | 116941242
Item #116941242
- HQCWC726-2000-B5-H-P20 WORM SPEED REDUCER

Boston Gear
RFWC752-150E-B7-G | 700 Series C-Face Coupled Double Reduction Right Angle Reducer
Item #101916493
- 5 5/32" Center Distance
- 150:1 Ratio
- 140TC or 180C Frame
- C-Face Coupled Input
- Left Output

Boston Gear
40B26-1 3/16
-
mac
40B26-1 3/16 | Finished Bore Sprocket
Item #101818442
- 40 Chain, 26 Tooth, 1.1875 in Bore, With Keyway and Setscrew

Boston Gear
41B18-5/8
-
mac
41B18-5/8 | Finished Bore Sprocket
Item #101836279
- 41 Chain, 18 Tooth, 0.625 in Bore, With Keyway and Setscrew

Boston Gear
GB1072A
-
mac
GB1072A | Single Lead Worm Gear
Item #101783106
- 8 Diametral Pitch, 40 Teeth, 14.5 Pressure Angle, RH, Single Thread, Bronze Worm Gear

Boston Gear
NH144
-
mac
NH144 | 14.5° Pressure Angle Spur Gear
Item #101752358
- Reborable Cast Iron Gear
- 8 Diametral Pitch
- 14.5° Pressure Angle
- 144 Teeth
- 18" Pitch Diameter

Boston Gear
L110Y
-
mac
L110Y | Minimum Plain Bore Straight Miter Gear
Item #101752681
- 16 Diametral Pitch
- 16 Teeth
- 20 ° Pressure Angle
- 1" Pitch Diameter
- 3/8" Nominal Bore

Boston Gear
35B16
-
mac
35B16 | B Style Sprocket
Item #101836576
- Single Strand, Number 35, Type B, 16 Teeth Roller Chain Sprocket

Boston Gear
25B25-3/8
-
mac
25B25-3/8 | Finished Bore Sprocket
Item #101854048
- 25 Chain
- 25 Teeth
- 3/8" Bore
- 3/32 in x 3/64 in Keyway

Boston Gear
F221DV-17-B5-V1
-
mac
F221DV-17-B5-V1 | 114057716
Item #114057716
- SHAFT MOUNT SPEED REDUCER

Boston Gear
PB5804
-
mac
PB5804 | Plate Stock
Item #101806964
- 8" L x 5" W x 1/4" H
- Bronze - Oil Impregnated (SAE 841)

Boston Gear
50B26-3/4
-
mac
50B26-3/4 | Finished Bore Sprocket
Item #101853008
- 50 Chain
- 26 Teeth
- 3/4" Bore
- 3/16 in x 3/32 in Keyway

Boston Gear
50B20-1 5/8
-
mac
50B20-1 5/8 | Finished Bore Sprocket
Item #101870097
- 50 Chain
- 20 Teeth
- 1 5/8" Bore
- 3/8 in x 3/16 in Keyway

Boston Gear
SCC 1/2 X 3/8
-
mac
SCC 1/2 X 3/8 | 102147432
Item #102147432
- 49292 / STL SETSCREW COUPLING

Boston Gear
HB816R
-
mac
HB816R | 14.5° Pressure Angle Helical Gear
Item #101753154
- 8 Diametral Pitch
- 16 Teeth
- 14.5 ° Pressure Angle
- 2" Pitch Diameter
- 1" Nominal Bore

Boston Gear
41B25-5/8
-
mac
41B25-5/8 | Finished Bore Sprocket
Item #101853573
- 41 Chain, 25 Tooth, 0.625 in Bore, With Keyway and Setscrew

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