Stop searching, install MROSupply Smart Check and see our price instantly wherever you browse.

Add products to your shopping cart

40BS12 3/4

Image for Illustration purposes only. Actual product may vary

View in markdown

Martin 40BS12 3/4 Type B finished bore roller chain sprocket for #40 chain (1/2" pitch), 12 teeth, 3/4" bore with keyway and two setscrews. Steel construction with 2.166" outside diameter. Single-strand design with hub on one side for standard mounting. Direct replacement for industry-standard bored-to-size sprockets.

MODEL 40BS12 3/4

BRAND

Martin Sprocket

SKU

261306

WEIGHT

0.310 lb

UOM

each

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

$24.33 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

Bore

3/4"

Material

Steel

Number Of Teeth

12

Outside Dia

2.166"

Pitch

0.500 in.

Teeth

12

Material	Steel	Hub Outside Diameter	1.593 in.
Chain Number	40	Length thru Bore	0.875 in.
Chain Pitch	0.500 in.	Hub Recessed For Chain	Yes
Number of Chain Rows	1	Construction Detail	Solid With Recess
Number of Teeth	12	Bore Type	Bored To Size
Outside Diameter	2.166 in.	Finished Bore Size	0.750 in.
Pitch Diameter	1.932 in.	Key Way Size	3/16x3/32 in.
Single Strand Tooth Thickness	0.284 in.	Set Screw Size	1/4-20X1/4 in.
Hardened Teeth	No	Set Screw Location	(2) Set Screws (1) Over Kw And (1) At 90
Hub Configuration	B
Storage Dimension Length	2.563 in.	Weight	0.35 lbs.
Storage Dimension Width	2.563 in.	Individually Packaged	Yes
Storage Dimension Height	0.938 in.

SKU: 2925122

Martin c5-20t-19-09

Quality product. Fast shipping!

SKU: 251489

High quality

strong material

SKU: 251128

Martin s1036 gears

Great Item, for a great deal!

SKU: 263484

Solid product at a great price

Solid product, fair and super fast shipping! MROSUPPLY delivers it all!

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?

Suggested Items

40BS12 3/4

#261306

Martin 40BS12 3/4 Type B finished bore roller chain sprocket for #40 chain (1/2" pitch), 12 teeth, 3/4" bore with keyway and two setscrews. Steel construction with 2.166" outside diameter. Single-strand design with hub on one side for standard mounting. Direct replacement for industry-standard bored-to-size sprockets.

Brand

Martin Sprocket

Model

40BS12 3/4

$24.33 Each

Free shipping

40A14

#261214

Martin 40A14 Type A plain bore roller chain sprocket for #40 chain (1/2" pitch) with 14 teeth. Flat plate design with no hub, made of steel. Outside diameter: 2.491". Compatible with ANSI B29.1 standard chain.

Brand

Martin Sprocket

Model

40A14

$24.70 Each

Free shipping

40R10

#2265612

HKK RC040R1A (alt. 40R10) is a standard ANSI 40 single strand roller chain with 1/2" pitch, 10 ft reel. Features solid bushings and rollers, pin diameter 0.156", plate height 0.457", roller diameter 0.312", roller width 5/16". Average ultimate strength 4,300 lbs, maximum allowable load 940 lbs. ANSI B29.1 compliant, made in Japan.

Brand

HKK Chain

Model

40R10

$8.64 Per Foot

Free shipping

40A12

#261212

Martin 40A12 Type A plain bore roller chain sprocket for #40 chain, 1/2" pitch, 12 teeth, 2.166" outside diameter. Flat plate design with no hub, steel construction. Suitable for light-duty applications where a simple, economical sprocket is required.

Brand

Martin Sprocket

Model

40A12

$23.37 Each

Free shipping

40A13

#261213

Martin 40A13 Type A plain bore roller chain sprocket for #40 chain with 1/2" pitch, 13 teeth, and 2.329" outside diameter. Flat plate design with no hub, steel construction. Suitable for light-duty applications where a simple, economical sprocket is required.

Brand

Martin Sprocket

Model

40A13

$23.74 Each

Free shipping

Alternatives Products from another supplier. Note, it may not be identical in style or function to original item

1128016

#2280372

Browning H4012X3/4 (1128016) steel ANSI #40 roller chain sprocket with 12 teeth and a 3/4-inch (19.05 mm) finished bore. The teeth are hardened for long wear life. This single-strand sprocket is compatible with standard ANSI #40 roller chain for conveyor, agricultural, and material-handling drives.

Brand

Browning

Model

1128016

$37.18 Each

Free shipping

Recently Viewed

#2850534

PT1MK-BK-P

Cooper Eaton PT1MK-BK-P ACCELL Timer(5 10 15 30 60)ChangeKit1_BK

Brand	Cooper Wiring
Model	PT1MK-BK-P

$4.71 Each

Free shipping

#5102307

3MMC9119WI SUX

Timken 3MMC9119WI SUX super precision angular contact ball bearing in triplex set with medium preload (TUM). P4S (ABEC 7/9) precision class for high-rigidity machine tool spindles, jig borers, and precision grinding applications requiring exceptional running accuracy and axial load capacity.

Brand	Timken
Model	3MMC9119WI SUX

$1,765.53 Each

Free Shipping orders over $100

#2310828

317813-7

Alemite 317813-7 lubrication hose assembly with 1/2" inner diameter, rated for 8,000 PSI burst pressure, and 7 ft length. Designed for industrial lubrication systems requiring high-pressure fluid transfer. Constructed with durable materials for reliable performance in demanding environments.

Brand	Alemite
Model	317813-7

$82.72 Each

Free shipping

#170596

T5-250-200

Gates T5-250-200 is a Synchro-Power Polyurethane Belt with T5 pitch, 250 mm pitch length, and 200 mm width. Designed for linear positioning and light-duty power transmission drives requiring precise synchronization. Polyurethane construction with steel tensile cord provides high flexibility and resistance to wear.

Brand	Gates Rubber
Model	T5-250-200

Call for pricing

#2309950

PA1188

Alemite PA1188 Fitting Pack includes an assortment of zinc-plated steel grease fittings for industrial lubrication applications. This pack provides a convenient selection of common fitting types for maintenance and repair tasks.

Brand	Alemite
Model	PA1188

$31.30 Each

Free shipping

Reviews

SKU: 2925122

Martin c5-20t-19-09

Quality product. Fast shipping!

SKU: 251489

High quality

strong material

SKU: 251128

Martin s1036 gears

Great Item, for a great deal!

SKU: 263484

Solid product at a great price

Solid product, fair and super fast shipping! MROSUPPLY delivers it all!