Made-to-Order Sprockets - Tsubaki

Sprocket TechnicalSectionSpecific information about the sprocket must be described during the ordering or quoting process. A summary is provided in Table 1below.Table 1 - Information Necessary to Order Sprockets1. Chain Size2. Teeth3. Material4. Hub TypeNumber, type, or drawing of chain to be used with the sprocket.For Engineering Class, the suitability of the sprocket depends on specific chaindimensions: Chain pitch, roller or barrel diameter, inside width of chain or roller face, chainheight, and chain type.The number of actual teeth on the sprocket.For Engineering Class Sprockets, if applicable, the number of working teeth, mid-pitchrelief, or gap-toothed construction should be specified. This is necessary when drivingconveyors with special through-rods or attachments that will interfere with the engagement.Special outside diameters are sometimes required to clear attachments.a. Standard Carbon Steel, with or without hardened teeth.b. Stainless Steel (Specify grade where applicable)c. Special materials such as alloy steel, bronze, etc., state preference and alternativewhere appropriate.Plate Only Hub One Side Hub Both Sides Offset hubs onboth sides(not symmetrical)Type A Type B Type C Type C Offset5. Exact Diameterof Shaft BoreShow special tolerances; keyway size; keyway location when required. If the keyway is notstandard, specify straight, tapered, square or flat, and dimensions.6. Set ScrewsIf set screws are not cup point, specify type.Tsubaki standard for finished bore is two (2) set screws. For other requirements, indicatenumber of screws and location.7. Hub DimensionsThese measurements are usually manufacturer’s standard. However, for special orders,outside diameter and Length-Thru-Bore should be specified. For Type C Offset sprockets,specify the Length-Thru-Bore and the projection length of one of the hubs (measure hublength from sprocket plate).SprocketsE-205