Block Chain

Product photo
  • Chain that is simple, tough, has excellent rigidity and high tensile strength.
  • This chain consists of two outer plates, one or two inner plates and pins, offers structurally superior rigidity with a largest tensile strength by chain mass for toughness.
  • Main parts use tempered steel for outstanding wear and heat resistance.
  • Normally, a dog like the one shown below is attached to a chain for use, but we also manufacture it for flow.

Application

  • ・Shuttle traction
  • ・Conveying high temperature items (Loaded directly on chain )
  • ・Draw benches
  • ・Attachments for flow are also available. Contact a Tsubaki representative for more information.
  • ※Use a projection (an outer plate supporter) to reduce internal tension for sprockets.

Dog

There are many types of dogs, but the following outlines some of the most common ones.

  • ・Fixed Dog

    Inner or outer plate is heightened to push conveyed items.

    Fixed Dog

  • ・Tilting Dog

    Conveyed items in front are pushed along as with a fixed dog, but when items come from behind the dog tilts forward to allow a item to pass by.

    Once the item has passed, the dog automatically returns to its former position.

    Tilting Dog

  • ・Ducking Dog

    This dog conveys items traveling on a guide rail, but when there is a break in the guide rail the dog ducks and the conveyed item is lowered as is.

    Ducking Dog

  • ・Tilting Ducking Dog

    This dog combines both the functions of tilting and ducking dogs.
    Conveyed items running on a guide rail are pushed along, while items coming from behind are allowed to pass. When there is a break in a guide rail a conveyed item is lowered as is.

    Tilting Ducking Dog

Catalogs ・Instruction Manuals

List of Models

※Click to see detailed information.

※Maximum allowable load is a value calculated based on Tsubaki in-house standards and is calculated strength. As long as there are no other constraints, maximum allowable load is used in selecting large size conveyor chain.
This value will differ by manufacturer and is not a guaranteed value.

※Contact a Tsubaki representative regarding average tensile strength.

Metric pitches

Size Pitch Inner width
of inner link
150mm 200mm 250mm 300mm 350mm mm
NF30 NF30150 NF30200 --- --- --- 23.3
NF40 NF40150 NF40200 --- --- --- 26.5
NF56 --- NF56200 NF56250 --- --- 29.5
NF63 --- NF63200 NF63250 --- --- 31.5
NF70 --- NF70200 NF70250 --- --- 33.5
NF90 --- NF90200 NF90250 --- --- 38
NF115 --- --- NF115250 NF115300 --- 40
NF140 --- --- NF140250 NF140300 --- 47.5
NF180 --- --- --- NF180300 NF180350 52.5
NF210 --- --- --- NF210300 NF210350 59
NF250 --- --- --- NF250300 NF250350 66
NF280 --- --- --- NF280300 NF280350 67
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