Product Info Sprocket / Pin gear drive
A sprocket is a type of gear and is also called a chain wheel.
A mechanical element that can transmit the rotation of a shaft to a chain or the tension of a chain to a shaft.
Types depend on use of a hub: Type A (flat type), Type B (single hub), Type C (dual hub).
High-strength, corrosion-resistant series are available for use in a variety of situations.
※Sprockets for Plastic modular chains, Top chains and Plastic block chains can be found on the product page for each chain.
Sprocket / Pin gear drive Related information
Features
- ・When used for drive chain transmission, a large reduction ratio can be achieved by combining the number of teeth. (Usually up to 1:7 )
- ・Choose from a wide range of lineups, including pilot bore products, finished bores and additional bore finishings. (Steel, stainless steel, engineering plastic, surface treatment, etc. )
- ・A range of materials and specifications are available to suit your application.
- ・Sprockets for pin gears with special tooth profiles can be used in combination with attachment chains or pin rack/pin wheel for rotating and linear drive applications instead of power transmission applications.
Construction
RS sprockets are manufactured in four types in conformance with JIS standards.
| Model code | A Type (flat plate ) |
B type (Single hub ) |
C type (Dual hub ) |
SD Type (single dual ) |
|---|---|---|---|---|
| Construction |
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| Multi-strand Heavy Duty Chain (Super-H, RS-HT, etc.) Note 1 | For using two single-strand chains at the same time | |||
| HB type | HC type | |||
| Usage by structure | Used when mounting on a rotating body, such as the center member of Torque Limiter. | Most versatile use. | For use with large driven sprockets or when key surface pressure is insufficient with B type. | For using two single-strand chains at the same time. |
Notes
1.The total tooth width (transverse pitch) of multi-strand Heavy Duty chains (HB/HC types) differs from the standard.
Locking system to shaft
The following three types of bores for attaching the sprocket to a shaft are available for RS sprockets.
| Series | Appearance | Package |
|---|---|---|
| Standard pilot bore |
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| Fit bore |
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| Lock Sprocket |
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Material and surface treatment
Lineup of specifications and materials to suit your application, such as steel, surface treatment, stainless steel and plastic.
| standard steel | Carbon steel for machine structural use | |
|---|---|---|
| Surface treatment | Carbon steel for machine structure use + Black oxide coating | Available with finished bore (Sprocket Fit bore). |
| Carbon steel for machine structure use + electroless nickel-phosphorus plating | Available with finished bore (Sprocket Fit bore). | |
| Carbon steel for machine structure use + electro galvanizing (trivalent chromate treatment) | Available with finished bore (Sprocket Fit bore). | |
| Carbon steel for machine structure use + other special surface treatment | ||
| Environment resistant | Stainless steel , titanium, other special materials | |
| Plastic |
Engineering plastic Nylon-based plastic Special MC901 plastic (Blue) ※Only for RS35,40,50,60 |
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Sprocket / Pin gear drive unit Product Lineup
- Drive sprocket
- Sprockets for Small Size Conveyor Chains
- Sprockets for Large Size Conveyor Chains
- Pin gear drive
Drive sprocket
Here we introduce sprockets for drive chains.
Standard series with a wide range of lineups, Fit bore ready for customer use with finished shaft bore/keyway/tapped hole, Fit bore BR type with finished bore for mounting bearings, Lock sprocket for easy shaft locking and phase matching without keys, dedicated sprocket for BS standard chain, dedicated sprocket for Torque limiter, and Chain tensioner/Idlers are available.
RS Sprockets are optimal for RS Roller Chain.
Choose from a wide range of lineups according to your application.
- ＊Steel type ：
General use type. Hardened teeth specification with improved wear resistance is also available. - ＊TOUGH TOOTH：
Improved strength and durability, mainly for Heavy Duty drive chain. -
＊Stainless steel type ：
Mainly used with stainless steel chain.
"Wear-resistant series" which use stainless steel with excellent corrosion resistance and improved wear performance are also available.
Note )Use surface-treated sprockets for coating chains. - ＊Engineering Plastic Type ：
Made of nylon-based plastic for lubrication-free operation. Suitable for light load applications. - ＊Surface treatment type (MTO items) ：
Black oxide, electroless nickel-phosphorus plating, and electro galvanizing (trivalent chromate treatment) can be selected according to the required corrosion resistance. - ＊Indicator pins specification ：
Sprocket with a notification mark of replacement time. - ＊Sprockets with Shaft ：
We manufacture the sprocket together with the shaft and deliver them as a set.
Size
Steel type ：
RS15～RS240
RF06B～RS16B
Stainless steel type ：
RS11
RS25～RS80
Engineering Plastic Type ：
RS35～RS60
Fit Bore Sprockets have finished bores.
- ・Sprocket with finished bore, keyway and tapped holes. They can be used as is with no additional troublesome finishing.
- ・Tsubaki offers three types of sprockets: in-stock, short delivery and MTO products.
- In-stock products: Specific finishings
- Short delivery / MTO products: Can be freely selected from set finishes
Click here for finishing selection and drawing output of finished bore, keyway and tapped holes.
Size
Stock item ：
RS35～RS100
Short delivery / MTO products
Single-strand type ：
RS35～RS240
RF06B～16B
Double-strand type ：
RS40～RS120
RS08B～16B
SD type ：
RS40～RS80
Stainless Single-strand type ：
RS35～RS80
Fit bore BR type is a product with finished bore for mounting bearings.
- ・Sprocket with finished bore. (Bearings not included )
- No additional troublesome finishing is required when installing bearings.
Size
Made to order
Single-strand B type
RS35～RS160
Sprockets with a keyless locking device.
Frictional force on the tapered sleeve enables sprockets to lock to the shaft with no keys. Phase alignment is also easy.
- ＊S Type ：Strong locking with bolts, and a wide variety of shaft diameters available
- ＊N Type ：Easy locking with nuts, mainly in smaller diameters
Size
S Type ：
RS35～RS100
N Type ：
RS35～RS60
We offer a wide array of special sprockets.
- ＊Sprockets for BS Chains ：BS/DIN Series
- ＊Torque Limiter Sprockets ：Finished on the friction surface of the center member.
Size
Click here for the product details.
We offer a wide line-up of necessities for chain drives.
- ☆Chain tensioner
- ＊CT-TCS type ：Swing type tensioner with idler sprocket
- ＊CT-ETS type ：Linear type tensioner with idler sprocket
- ＊CT-TA type ：Linear type tensioner with plastic shoe
- ＊CT-TH type ：Multiple idler sprockets to choose from
- ☆Idler wheels
- ＊FR Idler Sprockets come in two types: ball bearing type and oilless bush type
