Blackstar Sprockets

USA Roller Chain and Sprockets is one of the largest suppliers of Blackstar PT components in the world. For pricing or information please contact us at (407) 347-3519 or email our customer service team at sales@usarollerchain.com

Blackstar sprockets set the bar when it comes to quality at an industry competitive price point. With any sprocket, It begins with the plain material, with the Blackstar sprockets they utilize a 1045 grade of steel instead of the popular 1018 or "sintered steel" type.

Blackstar Sprocket Material

1045 Steel Element Content:

Carbon (C)	Iron (Fe)	Manganese (Mn)	Phosphorous (P)	Sulfur (S)
0.420% - 0.50%	98.51% - 98.98%	0.60% - 0.90 %	≤ 0.040%	≤ 0.050%

1045 Steel Physical Properties:

Density
0.284 lb/in^3

1045 Steel Mechanical Properties:

Hardnes (Brinell)	Hardness (Knoop)	Hardness (Rockwell B)	Hardness (Vickers)	Tensile Strength (Ultimate)	Tensile Strength (Yield)
163	184	54	170	81,900 psi	45,000 psi

Elongation at Break (in 50mm)	Reduction of Area	Modulus of Elasticity	Bulk Modules	Poissons Ratio	Shear Modulus
16%	40%	29,000 ksi	20,300 ksi	0.290	11,600 ksi

On top of using a premium 1045 grade of steel, Blackstar sprockets are induction hardened on tooth counts 30 and below. Induction hardening is a type of surface hardening in which the teeth are induction hardened then quenched. The quenched teeth then undergo a martensitic transformation, increasing the hardness of the teeth. This drastically increases the performance and durability of the sprocket. Dimensionally Blacksatar sprockets are made to ANSI B29.1 standards so they directly interchange with other brands.

to wrap things up, all the Blackstar roller chain sprockets are black oxide coated. Black oxide is also known as blackening is a conversion coating utilized for mild corrosion resistance and appearance that minimalizes light reflection. The black oxide also provides minimum buildup versus other coatings.

Martin Vs. Blackstar Sprockets

Blackstar Roller Chain Sprockets

Below are the standard Blackstar sprockets but we also supply custom and OEM special sprockets upon request. For more information check out our roller chain sprocket nomenclature page.

QD Style	Split Taper	Taper Lock	Finished Bore
Minimum Bore	A-Plate	B-Hub	C-Hub
Duplex	Double Single	Double Pitch	Idler

Blackstar Conveyor Chain Sprockets

Typically conveyor chain sprockets have a special tooth-profile and design designated for their specific chain type and common application. These sprockets typically have hardened teeth and no oxide coating.

78-Type	82-Type	81X-Type	Double Pitch

Blackstar Agricultural Chain Sprockets

Agricultural sprockets are the "CA" type agricultural chains and double pitch roller chains. Blackstar agricultural sprockets are sure to get you through the season!

CA550	CA557	CA620	Double Pitch

Blackstar Pintle Chain Sprockets

Pintle chain sprockets from Blackstar are made for pintle chain pitch sizes 1.664" - 2.609" these sprockets are made to reduce buildup and have an extended wear life. For more info about this type of sprocket visit our pintle chain sprockets page.

662	667X	667KC	667H	88C	88K

For more information about sprockets check out our roller chain sprockets pages and more!

Blackstar Sprocket Pricing

To get a quote on Blackstar sprockets fill out the request for quote form and someone from our customer service team will contact you.

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