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Martin Sprocket

 

Martin Sprocket & Gear was founded in 1951 by Joe Martin Sr. Over the decades Martin has expanded through machining, fabrication, forging, casting, powdered metal technology and machined & injection molded plastic of power transmission components, material handling products and industrial hand tools. Martin has grown to include manufacturing and sales facilities strategically located worldwide. 

 

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#248658
SDS 1 1/2
Martin SDS 1 1/2 QD bushing is a steel Quick Disconnect bushing with a 1-1/2" bore and a 3/8" x 3/16" keyway. It provides 5,000 in-lb torque capacity and is interchangeable with Dodge, Browning, and Gates SDS bushings.
Brand Martin Sprocket
Model SDS 1 1/2
$32.08 Each
Free shipping
#249212
10H
Martin 10H Quadra-Flex coupling sleeve, rubber construction, 7.015" outside diameter for size 10 Quadra-Flex couplings. Flexible element transmits torque while accommodating misalignment in industrial power transmission applications.
Brand Martin Sprocket
Model 10H
$360.64 Each
Free Shipping orders over $100
#249218
10HS
Martin 10HS Quadra-Flex coupling sleeve, Hytrel 2-piece split design, 7.015" OD, rubber element for high torque transmission. Compatible with size 10 Quadra-Flex hubs for misalignment up to 4 degrees.
Read 1 review
Brand Martin Sprocket
Model 10HS
$370.31 Each
Free Shipping orders over $100
#249221
10JEM
Martin 10JEM Quadra-Flex coupling sleeve with JEM TPR rubber element for size 10 Quadra-Flex couplings. Outside diameter 7.015". Provides flexible connection and misalignment accommodation.
Brand Martin Sprocket
Model 10JEM
$99.44 Each
Free shipping
#249921
5JEM
Martin 5JEM Quadra-Flex coupling sleeve, TPR rubber elastomeric element for size 5 Quadra-Flex flexible couplings. 2.926" outside diameter. Accommodates 4 degrees of misalignment, operating temperature range -65 to 275°F. Interchangeable with industry-standard Quadra-Flex sleeves.
Brand Martin Sprocket
Model 5JEM
$21.31 Each
Free shipping
#250010
6JEM
Martin 6JEM Quadra-Flex size 6 coupling sleeve, JEM TPR 1-piece elastomeric element with 3.740" outside diameter. Made of thermoplastic rubber for standard-duty torsional flexibility and misalignment accommodation in power transmission drives. Direct replacement for Quadra-Flex size 6 couplings.
Brand Martin Sprocket
Model 6JEM
$35.51 Each
Free shipping
#250096
7JEM
Martin 7JEM Quadra-Flex coupling sleeve, TPR (thermoplastic rubber) flexible element for size 7 Quadra-Flex couplings. 4.314" outside diameter. Provides 4 degrees of angular misalignment, absorbs shock, and dampens vibration. Interchangeable with industry-standard Quadra-Flex sleeves.
Read 2 reviews
Brand Martin Sprocket
Model 7JEM
$46.18 Each
Free shipping
#250135
8EM
Martin 8EM Quadra-Flex coupling sleeve rubber element for size 8 Quadra-Flex flexible shaft couplings. 5.047" outside diameter. Provides torsional flexibility, vibration damping, and accommodates angular, parallel, and axial misalignment in industrial power transmission systems.
Read 1 review
Brand Martin Sprocket
Model 8EM
$117.21 Each
Free Shipping orders over $100
#250136
8H
Martin 8H Quadra-Flex coupling sleeve element, 5.047" outside diameter, Hytrel thermoplastic elastomer for high torque transmission. Compatible with size 8 Quadra-Flex coupling hubs. Direct replacement for Dodge, Browning, and TB Woods.
Brand Martin Sprocket
Model 8H
$223.75 Each
Free Shipping orders over $100
#250148
8JEM
Martin 8JEM Quadra-Flex coupling sleeve is a TPR (thermoplastic rubber) flexible element for size 8 Quadra-Flex jaw couplings. Provides 4-degree misalignment capacity, vibration damping, and shock absorption. Outside diameter: 5.047".
Read 1 review
Brand Martin Sprocket
Model 8JEM
$60.38 Each
Free shipping
#250194
9H
Martin 9H Quadra-Flex coupling sleeve element made of Hytrel thermoplastic polyester elastomer. 6.011" outside diameter. Flexible insert for size 9 Quadra-Flex jaw couplings. Hytrel material transmits higher torque than standard TPR, EPDM, or Neoprene.
Brand Martin Sprocket
Model 9H
$267.27 Each
Free Shipping orders over $100
#250207
9JEM
Martin 9JEM Quadra-Flex coupling sleeve element. Thermoplastic rubber (TPR) elastomeric insert for size 9 Quadra-Flex flexible jaw couplings. Provides torsional flexibility and shock absorption. Outside diameter: 6.011".
Read 1 review
Brand Martin Sprocket
Model 9JEM
$71.03 Each
Free shipping
#250605
TT50BS 1 3/8
Martin TT50BS 1 3/8 torque limiter overload clutch for #50 roller chain with 5/8" pitch. Bored-to-Size design with 1-3/8" finished bore, keyway, and setscrews. Steel construction protects drive systems from overload by slipping at preset torque.
Brand Martin Sprocket
Model TT50BS 1 3/8
$391.64 Each
Free Shipping orders over $100
#250631
TT70SB
Martin TT70SB overload clutch torque limiter with 1.250" pitch, steel construction. Protects drive systems from overloads in power transmission applications requiring torque control and overload protection.
Brand Martin Sprocket
Model TT70SB
$667.29 Each
Free Shipping orders over $100
#251112
S1020
Martin S1020 steel spur gear with 10 diametral pitch, 20 teeth, 14.5-degree pressure angle, and 2.200" outside diameter. 14.5-degree pressure angle gears are not interchangeable with 20-degree pressure angle gears. Steel construction for durability in power transmission applications.
Brand Martin Sprocket
Model S1020
$88.32 Each
Free shipping
#251167
S1224
Martin S1224 steel spur gear with 12 diametral pitch, 24 teeth, and 14.5-degree pressure angle. Outside diameter is 2.166 inches. This stock spur gear is suitable for power transmission applications requiring precise tooth engagement.
Brand Martin Sprocket
Model S1224
$98.57 Each
Free shipping
#251717
TS2020
Martin TS2020 steel spur gear with 20 diametral pitch, 20 teeth, and 20-degree pressure angle. 1.100" outside diameter. Precision power transmission component for applications requiring 20-degree PA compatibility.
Brand Martin Sprocket
Model TS2020
$46.18 Each
Free shipping
#251923
W1220
Martin W1220 cast iron worm gear with 20 teeth and 1.853" outside diameter. Designed for right-angle power transmission in industrial machinery, conveyors, and gear reducers. Mates with a corresponding worm for efficient torque transfer.
Brand Martin Sprocket
Model W1220
$115.24 Each
Free Shipping orders over $100
#252026
CC6-H
Martin CC6-H hardened coupling shaft for screw conveyor drives. Constructed from steel with a 3.000" outside diameter. Provides a durable, wear-resistant connection point between drive components in material handling systems.
Brand Martin Sprocket
Model CC6-H
$272.52 Each
Free Shipping orders over $100
#252132
CHB2203MBR-O
Martin CHB2203MBR-O plain sleeve hanger bearing with Martin Bronze bushing for general-purpose power transmission applications requiring corrosion resistance and durability.
Brand Martin Sprocket
Model CHB2203MBR-O
$176.73 Each
Free Shipping orders over $100
#252153
CHB2204W
Martin CHB2204W plain sleeve hanger bearing with wood bushing for #220/226 chain applications, 2" bore. Wood material provides economical, self-lubricating performance in conveyor and power transmission systems. Simple design for reliable support in light to moderate duty applications.
Brand Martin Sprocket
Model CHB2204W
$84.40 Each
Free shipping
#252215
CSC-2
Martin CSC-2 screw conveyor trough cover clamp secures covers on screw conveyor troughs. Made of steel for durability.
Brand Martin Sprocket
Model CSC-2
$22.53 Each
Free shipping
#252232
CSS6
Martin CSS6 split gland seal, a cast iron abrasion-resistant packing seal for industrial sealing applications. Split design enables installation and maintenance without equipment disassembly. Suitable for rotating shafts in abrasive environments.
Brand Martin Sprocket
Model CSS6
$353.79 Each
Free Shipping orders over $100
#252235
CSW4
Martin CSW4 2-inch abrasion-resistant packing seal, cast iron construction for waste and abrasive material handling applications. Provides durable protection against wear in industrial environments.
Brand Martin Sprocket
Model CSW4
$216.65 Each
Free Shipping orders over $100
#252237
CSW6
Martin CSW6 cast iron abrasion-resistant packing seal for 3" waste pack applications. Designed for sealing in harsh environments where wear resistance is critical. Durable cast iron construction provides long service life in demanding industrial conditions.
Brand Martin Sprocket
Model CSW6
$313.99 Each
Free Shipping orders over $100
#252261
MSP6-SD
Martin Sprocket MSP6-SD 3" MARTIN SUPERPACK SEAL
Brand Martin Sprocket
Model MSP6-SD
$1,502.80 Each
Free Shipping orders over $100
#252891
4HF206-R
Martin 4HF206-R 4" diameter x 4" pitch right-hand helical flight screw conveyor accessory, steel. Designed for material handling in screw conveyors and augers, this component provides reliable conveying of bulk materials in industrial applications.
Brand Martin Sprocket
Model 4HF206-R
$288.44 Each
Free Shipping orders over $100
#252892
4H206-R
Martin 4H206-R screw conveyor auger, 4" diameter, 1" pitch, 9-10-1/2" length, right-hand flighting. Steel construction for industrial and agricultural material handling applications.
Brand Martin Sprocket
Model 4H206-R
$542.22 Each
Free Shipping orders over $100
#252940
6HF304-R
Martin 6HF304-R 6-inch diameter x 6-inch pitch right-hand helical flight for screw conveyors. Steel construction, 10-foot length. Used for building or repairing screw conveyors in bulk material handling applications.
Brand Martin Sprocket
Model 6HF304-R
$180.28 Each
Free Shipping orders over $100
#252943
6H304-R
Martin 6H304-R 6" diameter x 1-1/2" pitch x 9-10" length helical screw conveyor auger. Steel construction for material handling applications in bulk conveying systems.
Brand Martin Sprocket
Model 6H304-R
$407.00 Each
Free Shipping orders over $100
#253788
1VP40 5/8
Martin 1VP40 5/8 variable pitch sheave with 1 groove, 4.0" outside diameter, and 5/8" finished bore. Cast iron construction for adjustable speed V-belt drive applications.
Brand Martin Sprocket
Model 1VP40 5/8
$44.04 Each
Free shipping
#253795
1VP44 7/8
Martin 1VP44 7/8 variable pitch sheave for V-belt drives. 1-groove design allows pitch diameter adjustment. Cast iron construction, 4.4" outside diameter, 7/8" finished bore with keyway and set screws. For fractional HP applications.
Brand Martin Sprocket
Model 1VP44 7/8
$66.03 Each
Free shipping
#253833
1VP71 1 3/8
Martin 1VP71 1 3/8 variable pitch sheave with 1 groove, 7.1" outside diameter, and 1-3/8" bore. Cast iron construction. Adjustable pitch design enables speed variation in V-belt drives.
Brand Martin Sprocket
Model 1VP71 1 3/8
$146.03 Each
Free Shipping orders over $100
#254644
2VP50 1 1/8
Martin 2VP50 1 1/8 variable pitch sheave features 2 grooves, 5.0" outside diameter, and 1-1/8" finished bore. Cast iron construction provides durability for adjustable speed V-belt drive applications.
Brand Martin Sprocket
Model 2VP50 1 1/8
$138.31 Each
Free Shipping orders over $100
#254664
2VP65 1 3/8
Martin 2VP65 1 3/8 variable pitch sheave with 2 grooves, 6.5" outside diameter, and 1-3/8" finished bore. Cast iron construction for durability in adjustable V-belt drives. Allows speed variation by changing the effective pitch diameter.
Brand Martin Sprocket
Model 2VP65 1 3/8
$223.03 Each
Free Shipping orders over $100
#255823
DS40A15
Martin DS40A15 double single roller chain sprocket for #40 chain with 1/2" pitch, 15 teeth, and Type A plain bore flat plate design. Steel construction with 2.652" outside diameter. Double single configuration for dual strand applications.
Brand Martin Sprocket
Model DS40A15
$76.36 Each
Free shipping
#255869
DS60A13
Martin DS60A13 double single roller chain sprocket for #60 chain with 3/4" pitch, 13 teeth, and 3.493" outside diameter. Type A plain bore flat plate design in steel. Suitable for light-duty double strand applications where weight savings are critical.
Brand Martin Sprocket
Model DS60A13
$122.04 Each
Free Shipping orders over $100
#256839
D80B14H
Martin D80B14H double strand roller chain sprocket for #80 chain with 1" pitch and 14 teeth. Type B plain bore design with hub on one side, made from steel. Outside diameter 4.981". Suitable for power transmission drives requiring double strand chain.
Brand Martin Sprocket
Model D80B14H
$172.16 Each
Free Shipping orders over $100
#258710
100B15
Martin 100B15 Type B plain bore roller chain sprocket for #100 chain, 1-1/4" pitch, 15 teeth, steel construction with hub on one side. Outside diameter 6.631". Requires finishing to specified bore size. Suitable for industrial power transmission applications.
Brand Martin Sprocket
Model 100B15
$143.79 Each
Free Shipping orders over $100
#260554
25B24
Martin 25B24 Type B Plain Bore roller chain sprocket for #25 chain (1/4" pitch). 24 teeth, steel construction, one hub side for re-boring. Outside diameter: 2.049".
Brand Martin Sprocket
Model 25B24
$23.37 Each
Free shipping
#261211
40A112
Martin 40A112 Type A plain bore roller chain sprocket for #40 chain, 1/2" pitch, 112 teeth, 18.121" outside diameter. Flat plate design with no hub, steel construction. Suitable for applications requiring a lightweight, compact sprocket where hub projection is not needed.
Read 1 review
Brand Martin Sprocket
Model 40A112
$144.64 Each
Free Shipping orders over $100
#261274
40BB17H 5/8
Martin 40BB17H 5/8 ball bearing idler sprocket for #40 roller chain (1/2" pitch), 17 teeth, 5/8" finished bore with keyway and setscrews. Steel construction with sealed ball bearing for tensioning applications. Outside diameter: 2.970".
Brand Martin Sprocket
Model 40BB17H 5/8
$67.43 Each
Free shipping
#261276
40BB18H 1/2
Martin 40BB18H 1/2 ball bearing idler sprocket for #40 roller chain with 1/2" pitch, 18 teeth, and 1/2" finished bore. Steel construction with sealed ball bearings for tensioning applications. Outside diameter: 3.140".
Brand Martin Sprocket
Model 40BB18H 1/2
$68.89 Each
Free shipping
#261285
40BS10 3/4
Martin 40BS10 3/4 Type B finished bore roller chain sprocket for #40 chain, 1/2" pitch, 10 teeth, 3/4" bore with keyway and setscrews. Steel construction with hub on one side. 1.839" outside diameter. Interchanges with industry-standard sprockets.
Brand Martin Sprocket
Model 40BS10 3/4
$21.26 Each
Free shipping
#261304
40BS12 1
Martin 40BS12 1 Type B finished bore roller chain sprocket for #40 chain, 1/2" pitch, 12 teeth, 1" bore with keyway and setscrews. Steel construction, 2.166" outside diameter. Single-strand sprocket with hub on one side for standard mounting.
Brand Martin Sprocket
Model 40BS12 1
$24.33 Each
Free shipping
#261864
40BS72 1
Martin 40BS72 1 Type B finished bore roller chain sprocket for #40 chain, 1/2" pitch, 72 teeth, 1" bore with keyway and two setscrews. Steel construction, 11.752" outside diameter. Single-strand sprocket with hub on one side for re-boring or direct mounting.
Brand Martin Sprocket
Model 40BS72 1
$119.64 Each
Free Shipping orders over $100
#261948
40B12
Martin 40B12 Type B Plain Bore roller chain sprocket for #40 chain (1/2" pitch) with 12 teeth. Steel construction with one hub side for re-boring. Outside diameter: 2.166".
Brand Martin Sprocket
Model 40B12
$20.87 Each
Free shipping
#261956
40B16
Martin 40B16 Type B plain bore roller chain sprocket for #40 chain (1/2" pitch), 16 teeth, 2.814" outside diameter. Steel construction with hub on one side for re-boring. Suitable for light to medium duty power transmission applications.
Brand Martin Sprocket
Model 40B16
$22.22 Each
Free shipping
#262019
40B72
Martin 40B72 Type B plain bore roller chain sprocket for #40 chain, 1/2" pitch, 72 teeth, 11.752" outside diameter. Steel construction with hub on one side for re-boring applications. Minimum plain bore allows custom machining to required shaft size.
Brand Martin Sprocket
Model 40B72
$91.39 Each
Free shipping
#262024
40B96
Martin 40B96 Type B plain bore roller chain sprocket for #40 chain (1/2" pitch) with 96 teeth. Steel construction with hub on one side, designed for re-boring to custom shaft size. Outside diameter 15.573".
Brand Martin Sprocket
Model 40B96
$154.84 Each
Free Shipping orders over $100
#262032
40H15H
Martin 40H15H Taper-Lock sprocket for #40 roller chain (1/2" pitch) with 15 teeth and 2.652" outside diameter. Steel construction. Uses MST H split taper bushing (sold separately) for secure shaft mounting.
Brand Martin Sprocket
Model 40H15H
$59.30 Each
Free shipping
#262192
41A84
Martin 41A84 Type A plain bore roller chain sprocket for #41 chain with 1/2" pitch, 84 teeth, and 13.663" outside diameter. Flat plate design with no hub, steel construction. Suitable for light-duty applications where a plain bore sprocket is required.
Brand Martin Sprocket
Model 41A84
$83.50 Each
Free shipping
#262548
50BS10 1
Martin 50BS10 1 Type B finished bore roller chain sprocket for #50 chain, 5/8" pitch, 10 teeth, 1" bore with keyway and setscrews. Steel construction, 2.299" outside diameter. Single-strand, one-hub design for power transmission drives.
Brand Martin Sprocket
Model 50BS10 1
$30.26 Each
Free shipping
#262573
50BS12 1
Martin 50BS12 1 Type B finished bore roller chain sprocket for #50 chain, 5/8" pitch, 12 teeth, 1" bore with keyway and setscrews. Steel construction with 2.708" outside diameter. Single-strand sprocket with hub on one side for power transmission drives.
Brand Martin Sprocket
Model 50BS12 1
$32.76 Each
Free shipping
#263587
60A60
Martin 60A60 Type A plain bore roller chain sprocket for #60 chain with 3/4" pitch. Features 60 teeth, 14.761" outside diameter, and a flat plate design with no hub for lightweight applications. Manufactured from durable steel for reliable power transmission in industrial drive systems.
Brand Martin Sprocket
Model 60A60
$108.52 Each
Free Shipping orders over $100
#263602
60BB13H 5/8
Martin 60BB13H 5/8 ball bearing idler sprocket for #60 roller chain (3/4" pitch). Features 13 teeth, a 5/8" finished bore with keyway and setscrews, and a sealed ball bearing for tensioning applications. Steel construction with an outside diameter of 3.490".
Brand Martin Sprocket
Model 60BB13H 5/8
$79.30 Each
Free shipping
#263604
60BB15H 5/8
Martin 60BB15H 5/8 ball bearing idler sprocket for #60 roller chain (3/4" pitch). Features 15 teeth, a 5/8" finished bore, and a sealed ball bearing for tensioning applications. Steel construction with an outside diameter of 3.980".
Brand Martin Sprocket
Model 60BB15H 5/8
$84.89 Each
Free shipping
#264388
60B15
Martin 60B15 Type B plain bore roller chain sprocket for #60 chain (3/4" pitch) with 15 teeth. Steel construction with a hub on one side, designed for re-boring to a custom finished bore size. Outside diameter is 3.978".
Brand Martin Sprocket
Model 60B15
$43.87 Each
Free shipping
#264428
60B40
Martin 60B40 Type B plain bore roller chain sprocket for #60 chain, 3/4" pitch, 40 teeth, 9.980" outside diameter. One-sided hub design with minimum plain bore for custom machining. Steel construction for general power transmission applications.
Brand Martin Sprocket
Model 60B40
$101.27 Each
Free Shipping orders over $100
#264841
80BB12H 3/4
Martin 80BB12H 3/4 ball bearing idler sprocket for #80 roller chain with 1" pitch, 12 teeth, and 3/4" finished bore. Sealed ball bearing design for tensioning and take-up applications. Steel construction with 4.330" outside diameter.
Brand Martin Sprocket
Model 80BB12H 3/4
$94.81 Each
Free shipping