Type-TWN Pin and Bush Coupling Application
SERIES: TYPE-TWN (TWN 105 & OVER)

Pin and Bush Coupling, Type-TWN

The Type-TWN Pin and Bush Coupling operates with high-tensile coupling bolts and elastomeric rubber bushes fitted over the pins. Pins are rigidly fastened with nuts to one flange half and kept loose in the mating flange pockets. The two halves are dissimilar in construction, designed to connect shafts experiencing small parallel, angular, or axial misalignments while effectively absorbing operational shocks and vibrations.

Home Products Type-TWN
Fail-Safe Construction Type-TWN Pin and Bush Coupling
Torque Range: 20 to 1,30,000 KGM
Electric Motor & Heavy Machinery Drive

Rugged Pin & Bush Coupling for Severe Shock & Reversing Operations

The Type-TWN Pin and Bush Coupling operates with high-tensile coupling bolts and elastomeric rubber bushes fitted over the pins. Pins are rigidly fastened with nuts to one flange half and kept loose in the mating flange pockets. The two halves are dissimilar in construction, designed to connect shafts experiencing small parallel, angular, or axial misalignments while effectively absorbing operational shocks and vibrations.

Reversing Operation Independence: Operates independently of the direction of rotation, making it ideal for bi-directional and reversing drives.
Low Weight & Inertia: Optimized mass moments of inertia with options for Steel or Cast Iron hub configurations.
80 or 90 Shore Elements: Close-fitting flexible rubber bushes tuned for optimal dynamic damping.
Plug-in & Hazardous Atmosphere Ready: Suitable for blind plug-in bell housing assembly and certified for potentially explosive atmospheres.
Mounting Versatility: Suitable for horizontal or vertical operation with parallel or taper bore options, plus brake drum or disc attachments.
Industry Applications

Engineered for Heavy Equipment Drive Trains

Frequently used to connect prime mover motors and gear shafts to industrial driven machinery.

Pumps

Centrifugal & heavy process slurry pumps

Fans

Boiler ID/FD fans & industrial ventilation

Conveyors

Heavy plant material handling belts

Crushers

Heavy impact stone & mineral crushers

Mills

Ball mills, pulverizers & rolling mills

Standard Torque Range

20 – 1,30,000 KGM

700 Nm to 3,65,000 Nm rating
Operating Orientation

Vertical & Horizontal

Reversible plug-in design
Element Hardness

80 or 90 Shore

Close-fitting flexible rubber bushes
Technical Dimension Chart

Dimensions Chart for Pin and Bush Coupling (Type-TWN)

Torque in Nm | Speeds in RPM | Dimensions in mm | Weight in Kg
Size Torque (Nm) Speed (rpm) Bore ØD Min Bore ØD Max ØA ØB T L LG S Weight (kg) No. of Pins
TWN105 20 10000 — 32 105 53 13 45 53 3 1.50 06
TWN120 35 9000 — 40 120 65 15 58 100 3 3.20 06
TWN144 90 7900 — 50 144 79 16 55 113 3 4.50 10
TWN172 150 5900 — 55 172 85 20 60 123.5 3.5 6.7 08
TWN190 200 5300 — 70 176 102 20 70 140.5 3.5 8.7 10
TWN197 300 5000 — 80 197 120 20 80 183.5 3.5 12.0 12
TWN222 550 4500 — 95 222 130 26 90 180.5 3.5 19.0 11
TWN254 750 4400 — 100 254 160 28 100 233.5 3.5 26.5 12
TWN285 1200 3900 40 110 285 164 32 110 234.5 4.5 39.0 11
TWN320 1500 3500 55 125 320 180 32 105 254.5 4.5 53.0 12
TWN360 2100 3100 65 135 360 203 40 140 284.5 4.5 70.0 10
TWN400 3200 2800 75 150 400 233 42 160 324.5 4.5 110.0 14
TWN450 4500 2500 85 170 450 263 52 160 385.5 5.5 140.0 12
TWN500 6000 2200 95 190 500 293 52 233 465.5 5.5 217.0 14
TWN560 8500 2000 100 210 590 350 68 220 448.0 6.3 274.0 12
TWN630 12000 1800 100 235 630 390 68 240 489.0 6.3 352.0 14
TWN710 18000 1600 110 250 710 393 80 280 521.3 7.0 507.0 14
TWN800 25000 1400 125 280 800 423 80 290 551.3 7.0 670.0 16
TWN900 35000 1200 140 310 900 483 90 330 647.5 7.5 940.0 16
TWN1000 45000 1000 160 340 1000 595 80 350 707.5 7.5 1200.0 18
TWN1120 60000 900 160 370 1120 593 100 380 746.5 8.5 1470.0 18
TWN1250 75000 800 180 400 1250 615 100 420 849.5 8.5 1850.0 20
Fast Sizing Support

Request Quotation for Type-TWN

Specify your TWN size (TWN105 to TWN1250), torque rating, or shaft diameters (min/max bore).