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Small steel pulley block with braided rope hanging on a wire
Home/ Products/Pulleys

Pulleys

A pulley is a grooved wheel that a rope runs over to change direction, gain mechanical advantage or suspend a load.

Product line

Models in this line

Every model in this line has its own catalogue photo, dimension table and drawing. Select a model to see its full detail below.

Model 01 / 08

Single Pulley With Metal Reel

  • MaterialZinc alloy
  • SurfaceNickel-plated
  • Size range15mm – 50mm
Specification table
Single Pulley With Metal Reel — dimensional drawing
Dimensional drawing — shows the dimension symbols used in the table.
SizeacdefLWeight
mmmmmmmmmmmmmmg/pc
15mm151551343714.5
20mm202051354022.5
25mm262561475345
30mm3330102487267
40mm3635102597676
50mm47451329996153
Catalogue values. Dimensions in mm unless the size column shows an inch value. Confirm the exact size, material and rating before ordering.
Model 02 / 08

Single Pulley With Nylon Reel

  • MaterialZinc alloy
  • SurfaceElectro-galvanized
  • Size range15mm – 65mm
Specification table
Single Pulley With Nylon Reel — dimensional drawing
Dimensional drawing — shows the dimension symbols used in the table.
SizeacdefLWeight
mmmmmmmmmmmmmmg/pc
15mm1615101455017
20mm2220111666034
25mm2525121777051
30mm3030132087578
40mm40401723990107
50mm5050172612110172
65mm6565192615130390
Catalogue values. Dimensions in mm unless the size column shows an inch value. Confirm the exact size, material and rating before ordering.
Model 03 / 08

Double Pulley With Metal Reel

  • MaterialZinc alloy
  • SurfaceNickel-plated
  • Size range20mm – 50mm
Specification table
Double Pulley With Metal Reel — dimensional drawing
Dimensional drawing — shows the dimension symbols used in the table.
SizeabcdefLWeight
mmmmmmmmmmmmmmmmg/pc
20mm20232051254036
25mm2628255.51475368
30mm3235301025873110
40mm3737358.525977166
50mm4737451229997246
Catalogue values. Dimensions in mm unless the size column shows an inch value. Confirm the exact size, material and rating before ordering.
Model 04 / 08

Double Pulley With Nylon Reel

  • MaterialZinc alloy
  • SurfaceElectro-galvanized
  • Size range15mm – 50mm
Specification table
Double Pulley With Nylon Reel — dimensional drawing
Dimensional drawing — shows the dimension symbols used in the table.
SizeabcdefLWeight
mmmmmmmmmmmmmmmmg/pc
15mm172615101454929
20mm223020111665852
25mm253325121877075
30mm3038301321879120
40mm40434016231089170
50mm504650172612110265
Catalogue values. Dimensions in mm unless the size column shows an inch value. Confirm the exact size, material and rating before ordering.
Model 05 / 08

Double Swivel Pulley With Metal Reel

  • MaterialZinc alloy
  • SurfaceNickel-plated
  • Size range20mm – 50mm
Specification table
Double Swivel Pulley With Metal Reel — dimensional drawing
Dimensional drawing — shows the dimension symbols used in the table.
SizeabcdefLWeight
mmmmmmmmmmmmmmmmg/pc
20mm20242010754946
25mm26282512875974
30mm3135302118883116
40mm3735352118988139
50mm49404520169102272
Catalogue values. Dimensions in mm unless the size column shows an inch value. Confirm the exact size, material and rating before ordering.
Model 06 / 08

Single Swivel Pulley With Metal Reel

  • MaterialZinc alloy
  • SurfaceNickel-plated
  • Size range15mm – 50mm
Specification table
Single Swivel Pulley With Metal Reel — dimensional drawing
Dimensional drawing — shows the dimension symbols used in the table.
SizeacdefLWeight
mmmmmmmmmmmmmmg/pc
15mm1515116.544317
20mm2020117.554726
25mm2625117.575943
30mm3230201888574
40mm3635201898793
50mm484521179104153
Catalogue values. Dimensions in mm unless the size column shows an inch value. Confirm the exact size, material and rating before ordering.
Model 07 / 08

Single Swivel Pulley With Nylon Reel

  • MaterialZinc alloy
  • SurfaceElectro-galvanized
  • Size range15mm – 50mm
Specification table
Single Swivel Pulley With Nylon Reel — dimensional drawing
Dimensional drawing — shows the dimension symbols used in the table.
SizeacdefLWeight
mmmmmmmmmmmmmmg/pc
15mm161511755020
20mm2220141166036
25mm2625201778063
30mm3030201788589
40mm40402019995128
50mm5050201912110168
Catalogue values. Dimensions in mm unless the size column shows an inch value. Confirm the exact size, material and rating before ordering.
Model 08 / 08

Nylon Pulley With Hanging Eye

  • MaterialZinc alloy
  • SurfaceElectro-galvanized
  • Size range30mm
Specification table
Nylon Pulley With Hanging Eye — dimensional drawing
Dimensional drawing — shows the dimension symbols used in the table.
SizeacdefLsWeight
mmmmmmmmmmmmmmmmg/pc
30mm30301219810013105
Catalogue values. Dimensions in mm unless the size column shows an inch value. Confirm the exact size, material and rating before ordering.

Related pages

These pages cover the same job from a different angle.

WLL & safety factor

Open →
How to select

How to select

  1. Choose metal sheave for abrasion and load; nylon for quieter, rope-friendly running and lighter duty.
  2. Use a swivel eye where the block must align with a changing rope direction.
  3. Size the sheave to the rope diameter so the rope bends within its recommended radius.

Applications

Flagpole and halyardLight lifting and hoistingTheatre and event riggingSignage and display suspensionAgricultural and gate systemsMarine and awning

Safety & use notes

  • Do not overload the block beyond its stated capacity.
  • Keep the sheave and bearing clean and turning freely.
  • Fit the rope within the sheave groove; rope outside the groove damages both.
Model types, related standards and manufacturing
Types & standards

Types & standards

  • Single pulley, metal / nylon sheaveOne sheave in a fixed eye; metal sheave for hard-wearing use, nylon for quieter, rope-friendly running.
  • Double pulley, metal / nylon sheaveTwo sheaves for higher mechanical advantage or to change direction with less rope.
  • Swivel pulley, metal / nylon sheaveA rotating eye so the block can align with the load and the rope path.
  • Nylon pulley with hanging eyeA hanging-eye block for suspending loads, lighting or signage from a fixed point.
Manufacturing

How it is made

  1. Components in this group are produced by the route that suits the part — forging for load-bearing items, forming or machining for the rest.
  2. Threads, bores and bearing surfaces are machined and gauged.
  3. Assemblies are put together and checked for movement where they have moving parts.
  4. Surface treatment is applied, then a final visual and dimensional check before packing.

What to check on receipt

  • The part matches the drawing or sample it was ordered against.
  • Threads and bores are clean and within tolerance.
  • No cracks, distortion or sharp edges at the load-bearing points.
FAQ

FAQ

Metal or nylon sheave?
Metal for hard wear and heavier loads; nylon for quieter, rope-friendly running and lighter duties.
When do I need a swivel pulley?
When the block must rotate to align with a rope direction that changes during use.
How do I size a pulley?
Match the sheave to the rope diameter so the rope bends within its recommended minimum radius.

Related product lines

Shackles

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Quick Links

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Turnbuckles

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Swivels

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