Torque Limiters - Wedgegard

Howdon Wedgegard shear pin overload torque limiting couplings are designed to protect your drive system in various applications. In the event of a jam or overload, the Wedgepins will shear. They are extremely user friendly and by preventing mechanical overload to minimise further damage or injuries that could have resulted from the overload.

Gear Type Wedgegard Couplings can be supplied bored and keyed to customer requirements.

  • All Couplings manufactured to AGMA standards.
  • Standard Units for release torques up to 286,800 Nm.
  • Torque is adjustable by Wedgepin ratings.
  • Designs to suit special drive requirements are available.
  • Maximum Speed 500 RPM.
  • For speeds greater than 500 RPM units should be balanced.
  • All dimensions in mm unless otherwise shown.
  • All figures are approximate.

For more information, please visit www.howden.com.

 

Spacers

Chain and Pulley Drives

Dimensions and specsSize 10Size 15Size 20Size 25Size 30Size 35Size 40Size 45Size 50Size 55Size 60Size 70

Max Release / Shear (Nm) - Brass

34008400980011700265003110035200-----

Max Release / Shear (Nm) - Steel

4700115001340016100365004280048300118600211300286800

Max Release / Shear (lb ft) - Brass

2500620072008600195502295025950-----

Max Release / Shear (lb ft) - Steel

34608500990011870269003156035600769008750099200155850211550

Nominal Drive Torque (Nm)

110022003600640010850170002710035600505006580085400131700

Nominal Drive Torque (lb ft)

814162526754725800012580200002625037250485806300097150

Wedgeslot Quantity

4 x4 x4 x4 x4 x4 x4 x4 x4 x4 x6 x8 x

Wedgepin Type

W37W50W50W50W75W75W75W100W100W100W100W120

Pin Working Radius (PWR in mm)

59.574.587104.5115.5135.5153164.5187212222255

Max Bore (Gear Coupling Hubs)

42577395110127150166186206230275

Outside Diameter (A)

125160185220250290325355400450470540

Clearance Diameter (B)

145190210245290330360390440490510595

Spacer Length (C)

54747474104104104104125125125125

Overall Length (C1)

143176201233291.5323.5351.5382439470509576

Shaft Gap (D)

57.577.577.579110110110112133133133135

Bolt Fixing Quantity

6 x8 x6 x6 x8 x8 x8 x10 x8 x14 x14 x16 x

Bolt Fixing Size (UNF)

1/4"3/8"1/2"5/8"5/8"3/4"3/4"3/4"7/8"7/8"7/8"1"

Fixing Bolt P.C.D (mm)

95.25122.25149.225180.975206.375241.3279.4304.8342.9368.3400.05463.55

Spacer Weight (Kgs) Approx.

4.59.512.518.533455870106133146199

Incl Gear Coupling (Kgs) Approx.

8.517.526.545.570105149192282344440648
Dimensions and specsSize 10Size 15Size 20Size 25Size 30Size 35Size 40Size 45Size 50Size 55Size 60Size 70

Max Release / Shear (Nm) - Brass

34008400980011700265003110035200-----

Max Release / Shear (Nm) - Steel

4700115001340016100365004280048300118600211300286800

Max Release / Shear (lb ft) - Brass

2500620072008600195502295025950-----

Max Release / Shear (lb ft) - Steel

34608500990011870269003156035600769008750099200155850211550

Nominal Drive Torque (Nm)

110022003600640010850170002710035600505006580085400131700

Nominal Drive Torque (lb ft)

814162526754725800012580200002625037250485806300097150

Wedgeslot Quantity

4 x4 x4 x4 x4 x4 x4 x4 x4 x4 x6 x8 x

Wedgepin Type

W37W50W50W50W75W75W75W100W100W100W100W120

Pin Working Radius (PWR in mm)

59.574.587104.5115.5135.5153164.5187212222255

Max Bore (Gear Coupling Hubs)

42577395110127150166186206230275

Outside Diameter (A)

125160185220250290325355400450470540

Clearance Diameter (B)

145190210245290330360390440490510595

Spacer Length (C)

54747474104104104104125125125125

Overall Length (C1)

143176201233291.5323.5351.5382439470509576

Shaft Gap (D)

57.577.577.579110110110112133133133135

Bolt Fixing Quantity

6 x8 x6 x6 x8 x8 x8 x10 x8 x14 x14 x16 x

Bolt Fixing Size (UNF)

1/4"3/8"1/2"5/8"5/8"3/4"3/4"3/4"7/8"7/8"7/8"1"

Fixing Bolt P.C.D (mm)

95.25122.25149.225180.975206.375241.3279.4304.8342.9368.3400.05463.55

Spacer Weight (Kgs) Approx.

4.59.512.518.533455870106133146199

Incl Gear Coupling (Kgs) Approx.

8.517.526.545.570105149192282344440648

Spacers

Gear Couplings

Flexible Couplings

Wedgegard® Gear Coupling Standard Torque Table

CODESCOUPLINGSIZE 10SIZE 15SIZE 20SIZE 25SIZE 30SIZE 35SIZE 40SIZE 45SIZE 50SIZE 55SIZE 60SIZE 70COLOUR CODES 
WEDGEPINW37W50W50W50W75W75W75W100W100W100W100W120
OBRASS56130152183--------ORANGE
STEEL78179209251--------
OWBRASS78.5197230277--------ORANGEWHITE
STEEL108283331397--------
GDBRASS106-----------GOLD
STEEL146-----------
WBRASS14728433139898911601310-----WHITE
STEEL2023904555461357159217975346607768907215
WYBRASS212385450540138716271837-----WHITEYELLOW
STEEL291529618742190622362524795790451025410738
YBRASS280504588706175820622329-----YELLOW
STEEL38472985110222414283231981070612170137971444823460
YBBRASS3717368591032239528103173-----YELLOWBLUE
STEEL5091011118014183289385943571344415283173271814426265
BNBRASS384-----------BROWN
STEEL------------
BBRASS437101111801418286933663800-----BLUE
STEEL6001389162519483940462252181515017223195252044633736
BGBRASS509126314751771338939754489-----BLUEGREEN
STEEL69917352025243346535459616417901203492307024158-
GBRASS629154418032165425149885632-----GREEN
STEEL8632118247329715840685177362139824325275772887838760
RGBRASS760194922762734499058546610-----REDGREEN
STEEL1045267731253754681479949027-----
RBRASS856201523532827572868197587-----RED
STEEL117527683232388278679229104212464428014317603225847812
RKBRASS------------REDBLACK
STEEL------------
KBRASS-210024522946664577958803-----BLACK
STEEL-288433684045912410704120872609629666336323521859950

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