4. Top Chains
Table 4.13 Maximum Allowable Loads for Top Plate Chains
Maximum Allowable
Top Plate Width
Chain Spec. Carbon Steel
Load (kN)
82.6
101.6
114.3
127
190.5
6.28 6.28 1.03 0.88
NP SS
Poly-Steel
N/A
N/A
N/A
N/A : Available
Sprockets Usually, standard sprockets for RS60 Roller Chain with 19 teeth (P.D. 115.74 mm) through 25 teeth (P.D. 151.99 mm) are used with this chain. Stainless steel and engineered plastic sprockets are also available. Selection and Handling (1) Snap-on top plates will not separate from the base chain under normal use. Excessive loads may cause snap-on top plates to separate. (2) An idler pulley should not be used for this chain. (3) The back portion of the top plate rises slightly above the level of the
conveying surface in the area where the chain engages with the sprocket. This should be considered when designing a system.
Chains for Special Applications (1) Lube-free LAMBDA ® carbon steel or plated chains can be used for clean applications. These chains are most effective if they are not exposed to water, liquid, or dust. (2) MW top plates are low-friction and abrasion resistant. (3) TNU Snap-On Top Plate Chain series are used in curved movement.
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