Image for Illustration purposes only. Actual product may vary

Martin D40B40 double strand roller chain sprocket for #40 chain (1/2" pitch) with 40 teeth. Type B plain bore design with hub on one side, made of steel. Outside diameter 6.653". Suitable for power transmission drives requiring double strand configuration.

Name: Martin D40B40 double strand roller chain sprocket for #40 chain (1/2" pitch) with 40 teeth. Type B plain bore design with hub on one side, made of ste
Brand: Martin Sprocket
Price: 137.37 USD
Availability: InStock
Rating: 5.0 (4 reviews)

MODEL D40B40

BRAND

Martin Sprocket

SKU

256549

WEIGHT

9.400 lb

UOM

each

Contact supplier for technical support on: 323-728-8117

$137.37 Each

Prices are subject to change

FREE SHIPPING ON ORDERS OVER $100

Select Quantity

GET A QUOTE

Typically Ships in: 1 day

Returnable: See conditions

Material

Steel

Number Of Teeth

Outside Dia

6.653"

Pitch

0.500 in.

Material	Steel	Hub Configuration	B
Chain Number	40	Hub Outside Diameter	3.750 in.
Chain Pitch	0.500 in.	Length thru Bore	1.750 in.
Number of Chain Rows	2	Hub Recessed For Chain	No
Number of Teeth	40	Construction Detail	Solid
Outside Diameter	6.653 in.	Bore Type	Stock Bore
Pitch Diameter	6.373 in.	Min Bore Size	0.938 in.
Single Strand Tooth Thickness	0.275 in.	Max Bore Size	2.500 in.
Hardened Teeth	No

Storage Dimension Length	6.653 in.	Weight	9.46 lbs.
Storage Dimension Width	6.653 in.	Individually Packaged	No
Storage Dimension Height	1.750 in.

SKU: 250207

Perfect

Perfect replacement part, Good purchase experience. I would use MRO again.

SKU: 262463

70 tooth #41 chain sprocket

The sprocket arrived on time, fit perfectly and was priced well. MRO SUPPLY is your best choice for hard to find sprockets!

SKU: 251697

Good stock

I was pleased with the help of customer service to answer my questions concerning inventory and how quickly I received my product. Thank you.

SKU: 262188

Sprocket lm

Good quality product, arrived on time, will continue to buy from this company

When will I be charged for my order?

Do you provide credit terms?

Can I get a discounted price? I am a reseller / government entity.

What is the return/warranty policy?

Can it be shipped today?

Does “Usually ships in 24 hours” mean it’s in stock?

Read full FAQ

Recently Viewed

#262063

Martin 40NB19H 1 needle bearing idler sprocket for #40 roller chain (1/2" pitch). 19 teeth, 1" finished bore with keyway and setscrews. Steel construction with sealed needle bearing for tensioning or guiding roller chain drives.

Brand	Martin Sprocket
Model	40NB19H 1

$113.75 Each

Free Shipping orders over $100

#6252119

RMT 95006137 137HD B&G JOBBER DRILL #38

Brand	Rocky Mountain Twist
Model	95006137

$1.70 Each

Free shipping

#863739

IKO Bearing LM5080100 Standard Type Linear Bushing, Metric Series, 50 mm Inside Diameter, 80 mm Outside Diameter, High Carbon Steel Made, High Carbon Steel Retainer, Without Seal

Brand	IKO Bearing
Model	LM5080100

$310.00 Each

Free Shipping orders over $100

#104516

Dixon 3210-20 Fire Jacket for Hose, 50' length. Constructed with a silicone rubber coating over fiberglass for heat and abrasion resistance. Designed to protect hose lines in firefighting and industrial applications.

Brand	Dixon
Model	3210-20

$305.59 Each

Free Shipping orders over $100

#1900147

SKF / CR Seals (formerly CR Seals) 34336 is a radial shaft oil seal designed for small bore applications. This seal features a spring-loaded sealing lip for consistent radial force. Suitable for use in electric motors, gearboxes, pumps, and other rotating equipment to prevent lubricant leakage and exclude contaminants.

Brand	SKF Seals
Model	34336

$33.25 Each

Free shipping

#6372518

SpillTech DPO-16 Oil-Only DripPan

Brand	SpillTech
Model	DPO-16

$8.59 Each

Free shipping

#2563438

Dixon MSA2525F Storz x Rigid Male Adapter connects 2-1/2" NST male threads to 2-1/2" NST male threads. Constructed from lightweight, corrosion-resistant aluminum for fire protection and industrial hose applications. This adapter provides a rigid connection between Storz couplings and threaded NST fittings.

Brand	Dixon
Model	MSA2525F

$113.40 Each

Free Shipping orders over $100

#5112706

Timken E-4BF-TRB-40MM-ECC is a Type E four-bolt flange mounted unit with a tapered roller bearing insert. It features a 40mm metric shaft size and an eccentric collar locking mechanism for secure mounting. This housed unit is designed for heavy-duty industrial applications such as conveyors, fans, and process equipment where combined radial and axial loads are present.

Brand	Timken
Model	E-4BF-TRB-40MM-ECC

$368.94 Each

Free Shipping orders over $100

Reviews

SKU: 250207

Perfect

Perfect replacement part, Good purchase experience. I would use MRO again.

SKU: 262463

70 tooth #41 chain sprocket

The sprocket arrived on time, fit perfectly and was priced well. MRO SUPPLY is your best choice for hard to find sprockets!

SKU: 251697

Good stock

I was pleased with the help of customer service to answer my questions concerning inventory and how quickly I received my product. Thank you.

SKU: 262188

Sprocket lm

Good quality product, arrived on time, will continue to buy from this company

Martin D40B40 double strand roller chain sprocket for #40 chain (1/2" pitch) with 40 teeth. Type B plain bore design with hub on one side, made of steel. Outside diameter 6.653". Suitable for power transmission drives requiring double strand configuration.

Return policy