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Mechanical Clutches

Mechanical clutches are critical components in power transmission systems, designed to engage and disengage the connection between driving and driven shafts for controlled torque and motion transfer. These clutches operate through mechanical means, such as friction, positive engagement, or overrunning mechanisms, and are widely used in various industrial applications. The selection of the appropriate mechanical clutch depends on factors such as torque capacity, operating speed, response time, and environmental conditions.
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#398345
CL42189-2GR
Formsprag CL42189-2GR HPI-400 high-performance indexing clutch with a 0.750-inch bore and grease lubrication. Designed for high-cycle indexing in packaging, paper, and printing equipment, this sprag-type clutch converts oscillating motion to unidirectional intermittent motion with precision and reliability.
Brand Formsprag
Model CL42189-2GR
$2,114.35 Each
Free Shipping orders over $100
#399054
CL42153-2
Formsprag CL42153-2 FSO-400/.750 outer-race-driving overrunning clutch with a 0.750-inch bore. This sprag-type clutch is designed for overrunning, indexing, and backstopping applications where the outer race drives. The FSO-400 provides reliable freewheeling and positive engagement in industrial power transmission systems.
Brand Formsprag
Model CL42153-2
$1,925.87 Each
Free Shipping orders over $100
#399146
CL42155-132GR
Formsprag CL42155-132GR FSO-600 outer-race-driving overrunning clutch with a 2.000-inch bore. This greased sprag-type clutch is designed for overrunning, backstopping, and indexing applications where the outer race drives. The FSO-600 provides reliable one-way freewheeling in industrial power transmission systems.
Brand Formsprag
Model CL42155-132GR
$3,592.93 Each
Free Shipping orders over $100
#399189
AS25
STIEBER AS25 CLUTCH ASSEMBLY
Brand STIEBER
Model AS25
$662.31 Each
Free Shipping orders over $100
#399360
RSCI-70
STIEBER RSCI-70 CLUTCH
Brand STIEBER
Model RSCI-70
$3,748.22 Each
Free Shipping orders over $100
#399645
AS8
STIEBER AS8 CLUTCH ASSEMBLY
Brand STIEBER
Model AS8
$475.16 Each
Free Shipping orders over $100
#399857
CSK40-PP
STIEBER CSK40-PP CSK40 WITH 2 KEYSEATS
Brand STIEBER
Model CSK40-PP
$587.98 Each
Free Shipping orders over $100
#400137
RSCI-100
STIEBER RSCI-100 CLUTCH
Brand STIEBER
Model RSCI-100
$8,284.84 Each
Free Shipping orders over $100
#400140
RSCI-45
STIEBER RSCI-45 CLUTCH
Brand STIEBER
Model RSCI-45
$2,058.60 Each
Free Shipping orders over $100
#400217
RSCI-35
STIEBER RSCI-35 CLUTCH
Brand STIEBER
Model RSCI-35
$1,679.00 Each
Free Shipping orders over $100
#400227
RSCI-40
STIEBER RSCI-40 CLUTCH
Brand STIEBER
Model RSCI-40
$2,135.58 Each
Free Shipping orders over $100
#400487
RSCI-60
STIEBER RSCI-60 CLUTCH
Brand STIEBER
Model RSCI-60
$3,392.51 Each
Free Shipping orders over $100
#400497
CL4605-12A
Formsprag CL4605-12A FS-50-12A sprag-type overrunning clutch for freewheel and backstopping applications. The FS-50 series features a compact design with internal sprag retainer for reliable one-way engagement.
Brand Formsprag
Model CL4605-12A
$1,486.55 Each
Free Shipping orders over $100
#400876
AS50
STIEBER AS50 CLUTCH ASSEMBLY
Brand STIEBER
Model AS50
$1,489.20 Each
Free Shipping orders over $100
#401304
CL4558-2RH
Formsprag CL4558-2RH is an FS-04 sprag-type overrunning clutch with a 0.500-inch bore and right-hand free-running direction. Designed for indexing, backstopping, and freewheeling applications in industrial power transmission. The sprag retainer provides reliable one-way engagement.
Brand Formsprag
Model CL4558-2RH
$525.60 Each
Free Shipping orders over $100
#401568
CSK35-PP
STIEBER CSK35-PP CSK35 WITH 2 KEYSEATS
Brand STIEBER
Model CSK35-PP
$480.47 Each
Free Shipping orders over $100
#402254
ASK60
STIEBER ASK60 CLUTCH ASSEMBLY
Brand STIEBER
Model ASK60
$3,164.22 Each
Free Shipping orders over $100
#402286
ASK40
STIEBER ASK40 CLUTCH ASSEMBLY
Brand STIEBER
Model ASK40
$2,298.84 Each
Free Shipping orders over $100
#402289
AS60
STIEBER AS60 CLUTCH ASSEMBLY
Brand STIEBER
Model AS60
$1,777.22 Each
Free Shipping orders over $100
#402309
AS20
STIEBER AS20 CLUTCH ASSEMBLY
Brand STIEBER
Model AS20
$529.58 Each
Free Shipping orders over $100
#402459
CL41290-1GRLH
Formsprag CL41290-1GRLH FSR-8 sprag backstop clutch with a 1.000-inch bore, greased and left-hand rotation. Designed for inclined conveyor and bucket elevator backstopping to prevent reverse rotation under load.
Brand Formsprag
Model CL41290-1GRLH
$1,968.35 Each
Free Shipping orders over $100
#402892
CL42189-2
Formsprag CL42189-2 HPI-400 high-performance indexing clutch with a 0.750-inch bore. Designed for high-cycle indexing in packaging, paper, and printing equipment. The HPI series converts oscillating motion to unidirectional intermittent motion with precision and reliability.
Brand Formsprag
Model CL42189-2
$2,265.65 Each
Free Shipping orders over $100
#403049
CL42154-2
The Formsprag CL42154-2 is an outer-race-driving overrunning clutch in the FSO-500 size with a 1.2-inch bore, and a 50.250" x 0.125" keyway. Outer-race-driving sprag construction is optimized for indexing and high-cycle freewheel duty in compact reducer mounting envelopes. Used in compact indexing and outer-race-driven freewheel applications in packaging and converting equipment.
Brand Formsprag
Model CL42154-2
$2,747.45 Each
Free Shipping orders over $100
#403715
GFR30
STIEBER GFR30 CLUTCH ASSEMBLY
Brand STIEBER
Model GFR30
$2,444.44 Each
Free Shipping orders over $100
#403716
NB500
Formsprag NB500 RL-47A roller-ramp overrunning clutch with a 0.500-inch bore. This cam-and-roller design delivers high torque per unit volume for indexing, backstopping, and freewheeling applications. Suitable for industrial power transmission where one direction must lock while the other rotates freely.
Brand Formsprag
Model NB500
$7,157.98 Each
Free Shipping orders over $100
#403748
CSK40-P
STIEBER CSK40-P CLUTCH
Brand STIEBER
Model CSK40-P
$537.55 Each
Free Shipping orders over $100
#403762
CSK20
STIEBER CSK20 CLUTCH
Brand STIEBER
Model CSK20
$282.71 Each
Free Shipping orders over $100
#403763
CSK25
STIEBER CSK25 CLUTCH
Brand STIEBER
Model CSK25
$358.36 Each
Free Shipping orders over $100
#403767
CSK17-2RS
STIEBER CSK17-2RS CLUTCH ASSEMBLY
Brand STIEBER
Model CSK17-2RS
$281.38 Each
Free Shipping orders over $100
#403782
ASK50
STIEBER ASK50 CLUTCH ASSEMBLY
Brand STIEBER
Model ASK50
$2,673.13 Each
Free Shipping orders over $100
#404130
CL41228-1GRLH
Formsprag CL41228-1GRLH FSR-16/2.000GRLH sprag backstop clutch with a 2.000-inch bore, left-hand rotation, and grease lubrication. Designed for inclined conveyor and bucket elevator backstopping applications to prevent reverse rotation under load.
Brand Formsprag
Model CL41228-1GRLH
$4,745.00 Each
Free Shipping orders over $100
#404323
CL42154-2GR
Formsprag CL42154-2GR FSO-500 outer-race-driving overrunning clutch with a 1.250-inch bore. This greased sprag clutch is designed for overrunning, backstopping, and indexing applications where the outer race drives. The FSO series offers compact, high-torque performance in industrial power transmission systems.
Brand Formsprag
Model CL42154-2GR
$3,192.09 Each
Free Shipping orders over $100
#404333
CL42155-1GR
Formsprag CL42155-1GR FSO-600 outer-race-driving overrunning clutch with a 1.750-inch bore. This sprag-type clutch is pre-greased for maintenance-free operation in indexing, backstopping, and freewheel applications. The FSO series is designed for compact outer-race driving configurations in industrial power transmission systems.
Brand Formsprag
Model CL42155-1GR
$3,592.93 Each
Free Shipping orders over $100
#404344
CL42155-1
Formsprag CL42155-1 FSO-600 outer-race-driving overrunning clutch with a 1.750-inch bore. This sprag-type clutch is designed for overrunning, indexing, and backstopping applications where the outer race drives. The FSO-600 features a compact design and is suitable for industrial power transmission systems.
Brand Formsprag
Model CL42155-1
$3,592.93 Each
Free Shipping orders over $100
#404356
CL41290-1LH
Formsprag CL41290-1LH FSR-8/1.000LH sprag backstop clutch with a 1.000-inch bore and left-hand rotation. Designed for inclined conveyor and bucket elevator backstopping applications to prevent reverse rotation under load. Self-contained sprag backstop from the FSR series.
Brand Formsprag
Model CL41290-1LH
$1,968.35 Each
Free Shipping orders over $100
#404357
CL41290-1GRRH
Formsprag CL41290-1GRRH is an FSR-8 sprag backstop clutch with a 1.000-inch bore, greased and right-hand rotation. Designed for inclined conveyor and bucket elevator backstopping, it prevents reverse rotation under load. The FSR series offers reliable one-way engagement in a self-contained, maintenance-friendly package.
Brand Formsprag
Model CL41290-1GRRH
$1,568.84 Each
Free Shipping orders over $100
#404363
CL41290-1RH
Formsprag CL41290-1RH FSR-8 sprag backstop clutch with a 1.000-inch bore and right-hand rotation. Designed for inclined conveyor and bucket elevator backstopping applications to prevent reverse rotation under load. Self-contained, grease-lubricated construction.
Brand Formsprag
Model CL41290-1RH
$1,968.35 Each
Free Shipping orders over $100
#404364
CL41346-1RH
Formsprag CL41346-1RH FSR-6 sprag backstop clutch with a 0.750-inch bore and right-hand rotation. Designed for inclined conveyor and bucket elevator backstopping applications to prevent reverse rotation under load. This self-contained backstop features a sprag retainer for reliable one-way locking.
Brand Formsprag
Model CL41346-1RH
$1,809.07 Each
Free Shipping orders over $100
#404375
CL41346-1GRLH
Formsprag CL41346-1GRLH FSR-6 sprag backstop clutch with a 0.750-inch bore, greased lubrication, and left-hand rotation. Designed for backstopping on inclined conveyors, bucket elevators, and hoists to prevent reverse rotation under load.
Brand Formsprag
Model CL41346-1GRLH
$1,809.07 Each
Free Shipping orders over $100
#404419
CL42155-7
Formsprag CL42155-7 FSO-600 outer-race-driving overrunning clutch with a 1.500-inch bore. This sprag-type clutch is designed for overrunning, indexing, and backstopping applications where the outer race drives. The FSO-600 provides reliable freewheeling and positive engagement in industrial power transmission systems.
Brand Formsprag
Model CL42155-7
$3,592.93 Each
Free Shipping orders over $100
#404436
CL42156-89
Formsprag CL42156-89 FSO-700/2.500 outer-race-driving overrunning clutch with a 2.500-inch bore. This FSO-700 series sprag clutch is designed for freewheel, indexing, and backstopping applications where the outer race drives. It is a catalog standard unit suitable for industrial power transmission.
Brand Formsprag
Model CL42156-89
$6,913.76 Each
Free Shipping orders over $100
#404441
CL40331-3RH
Formsprag CL40331-3RH FS-05 sprag-type overrunning clutch with a 0.625-inch bore and right-hand free-running direction. Designed for indexing, backstopping, and freewheeling applications in industrial power transmission. The FS series features a sprag retainer for reliable one-way engagement.
Brand Formsprag
Model CL40331-3RH
$1,267.55 Each
Free Shipping orders over $100
#404556
CL41225-1LH
Formsprag CL41225-1LH FSR-10 sprag backstop clutch with a 1.250-inch bore and left-hand rotation. Designed for inclined conveyor and bucket elevator backstopping applications to prevent reverse rotation under load. This self-contained backstop features sprag-type one-way engagement for reliable holdback performance.
Brand Formsprag
Model CL41225-1LH
$2,030.73 Each
Free Shipping orders over $100
#404572
CL4605-11A
Formsprag CL4605-11A FS-50 sprag-type overrunning clutch for freewheel and indexing applications. This compact clutch provides reliable one-way engagement in industrial power transmission systems.
Brand Formsprag
Model CL4605-11A
$1,055.18 Each
Free Shipping orders over $100
#404576
CL4571-LH
Formsprag CL4571-LH FS-02 sprag-type overrunning clutch with a 0.250-inch bore and left-hand free-running direction. Designed for indexing, backstopping, and freewheeling applications requiring compact one-way clutch performance.
Brand Formsprag
Model CL4571-LH
$576.04 Each
Free Shipping orders over $100
#404580
CL4558-2LH
Formsprag CL4558-2LH is an FS-04 sprag-type overrunning clutch with a 0.500-inch bore and left-hand free-running direction. Designed for indexing, backstopping, and freewheeling applications in industrial power transmission. The sprag retainer provides reliable one-way engagement and disengagement.
Brand Formsprag
Model CL4558-2LH
$525.60 Each
Free Shipping orders over $100
#2034293
NB1010
Formsprag NB1010 RL72A/1.000 roller-ramp overrunning clutch with a 1.000-inch bore. Designed for overrunning, indexing, and backstopping applications requiring high torque density. The RL series provides reliable one-way engagement in industrial power transmission systems.
Brand Formsprag
Model NB1010
$10,083.29 Each
Free Shipping orders over $100
#2284247
1296342
Browning T25LX3/4 1296342 T25L series torque overload assembly with a 0.75-inch straight bore and 800 lb-in maximum torque capacity. Provides overload protection for power transmission systems, disengaging the drive when torque exceeds the set limit. Suitable for conveyors, mixers, and other industrial machinery requiring torque limiting.
Brand Browning
Model 1296342
$313.04 Each
Free Shipping orders over $100
#2284250
1296409
Browning T35LX 1 1/8 1296409 torque overload assembly with a 1.125-inch straight bore and a maximum torque capacity of 1800 lb-in. Designed to protect downstream equipment from overloads and shock loads, this T35L-series torque limiter is suitable for industrial power transmission applications. Genuine Browning component from Regal Rexnord.
Brand Browning
Model 1296409
$395.12 Each
Free Shipping orders over $100
#2284251
1296391
Browning T35LX1 1296391 torque overload assembly with a 1-inch straight bore and a maximum torque capacity of 1800 lb-in. Protects downstream equipment from overloads and jams in industrial power transmission applications. Genuine Browning component from Regal Rexnord.
Brand Browning
Model 1296391
$395.12 Each
Free Shipping orders over $100
#2284255
1296466
Browning T45LX 1 1/4 (1296466) T45L series torque overload assembly with a 1.25-inch straight bore and 2800 lb-in maximum torque capacity. Provides overload protection for power transmission systems, disengaging the drive when torque exceeds the set limit to prevent damage to downstream components. Genuine Browning component from Regal Rexnord.
Brand Browning
Model 1296466
$510.60 Each
Free Shipping orders over $100
#2284259
1296433
Browning T45LX1 1296433 torque overload assembly with a 1-inch straight bore and a maximum torque capacity of 2800 lb-in. Mechanical torque-overload device for protecting downstream gearing against shock loads and jams. Replacement component for original-equipment Browning power transmission assemblies.
Brand Browning
Model 1296433
$752.80 Each
Free Shipping orders over $100
#2284268
1296532
Browning T55LX 1 7/16 1296532 T55L series torque overload assembly with a 1.4375-inch straight bore and 3800 lb-in maximum torque capacity. Mechanical torque-overload device for protecting downstream gearing against shock loads and jams. Suitable for industrial power transmission applications.
Brand Browning
Model 1296532
$802.15 Each
Free Shipping orders over $100
#2284277
1296623
Browning T65LX2 1296623 torque overload assembly with a 2-inch straight bore and a maximum torque capacity of 4800 lb-in. Mechanical torque-overload device for protecting downstream gearing against shock loads and jams. Replacement component for original-equipment Browning power transmission assemblies. Genuine Browning component from Regal Rexnord.
Brand Browning
Model 1296623
$954.35 Each
Free Shipping orders over $100
#2785739
H-TLC-1000-BD
Zero-Max H-TLC-1000-BD through-shaft mount torque limiter with actuator disc, rated for 1000 lb-in of torque. This mechanical overload protection device disengages when shock or jam loads exceed the set torque, safeguarding drivetrain components in precision motion control applications.
Brand Zero-Max
Model H-TLC-1000-BD
$371.85 Each
Free Shipping orders over $100
#2785740
H-TLC-1000-C
Zero-Max H-TLC-1000-C through-shaft mount torque limiter with 1000 lb-in torque capacity. C configuration for shaft-to-shaft mounting. Protects machinery from overloads and jams. Genuine Zero-Max precision motion-control component.
Brand Zero-Max
Model H-TLC-1000-C
$290.70 Each
Free Shipping orders over $100
#2785742
H-TLC-500-B
Zero-Max H-TLC-500-B through-shaft mount torque limiter with 500 lb-in torque capacity. B-mount configuration provides overload protection for rotating machinery, disengaging upon shock or jam loads to safeguard downstream components.
Brand Zero-Max
Model H-TLC-500-B
$188.15 Each
Free Shipping orders over $100
#2785887
TT1X-C
Zero-Max TT1X-C Torq-Tender mechanical overload clutch, frame size 1 with coupling mount style. Disengages drive upon torque overload to protect downstream equipment. Suitable for shaft-to-shaft applications requiring reliable torque limiting.
Brand Zero-Max
Model TT1X-C
$265.73 Each
Free Shipping orders over $100
#2785899
TT2-C
Zero-Max TT2-C Torq-Tender mechanical overload clutch, frame 2, coupling style. Provides reliable torque overload protection for rotating machinery, disengaging upon shock or jam loads. Compact design for limited-space applications.
Brand Zero-Max
Model TT2-C
$304.97 Each
Free Shipping orders over $100
#2785914
TT2X-C
Zero-Max TT2X-C Torq-Tender mechanical overload clutch, frame size 2, coupling mount style. Disengages driven equipment when torque exceeds the set point, protecting against jams and overloads. Suitable for industrial power transmission applications requiring reliable torque limiting.
Brand Zero-Max
Model TT2X-C
$403.06 Each
Free Shipping orders over $100