Maedler North America

Part number (SKU) 12513700
No. of Teeth 37
da [mm] 154,6
d [mm] 149,76
ND [mm] 110
B [mm] 20
L [mm] 40
Weight [kg] 3,85

CATALOG PRODUCT PAGE

CAD FILES (download)

If you need a rework or a custom-made-product please contact us directly with your inquiry.

The supplied 3D models, pictures and technical drawings are made with reasonable care.
Nevertheless liability is excluded for the accuracy and correctness of this data.

Weight 3.85 kg
Dimensions 155 × 155 × 40 cm
No. of teeth

da [mm]

d (mm)

ND [mm]

B [mm]

L [mm]

Weight [kg]

Questions and answers

When will this part ship?

The stock status is shown next to the price. In stock parts ship from Bradenton, Florida, the same business day for orders placed before 2:00 p.m. Eastern. Backorder parts usually ship within 1–2 weeks.

What does shipping cost?

Shipping is calculated at checkout based on weight and destination. We ship with UPS and FedEx, and heavy orders ship by LTL freight. You can also ship on your own UPS or FedEx account for a $10 handling fee.

Can this part be bored or keyed to fit my shaft?

For most gears, sprockets, pulleys and couplings, yes. We can bore to your size and tolerance, cut a DIN 6885 keyway and add set-screw threads. We also offer expedited rework services for many parts. Email us the exact size needed and we will quote it.

Is there a better price for larger quantities?

Yes. The quantity prices are listed above. For more than the largest listed quantity, or for a custom version, ask for a quote.

Where are the CAD model and the catalogue page?

Under the Description tab you will find the link to free 2D and 3D CAD models and the catalogue page as a PDF.

Do you have this part in another size, material or in inches?

Often, yes. Use the filters on the category page, or send us your requirements and we will find the closest part or quote a custom one.

Can I return this part?

Unused standard parts can be returned within 30 days with an RMA number from returns@maedlernorthamerica.com; a 15% restocking fee applies. Custom-made parts or belts/chains that were cut to size cannot be returned. See our Return Policy.

More answers on our FAQ page. Questions about this part? Email us or call 941.803.0160.

Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 37 teeth material steel PN: 12513700

Material: Steel C45, not hardened. Pre-bored. Sprockets with 45 teeth and above are made of grey cast iron GG25.

General dimensions: B1 = 7 mm, B2 = 21 mm c = 1,3 mm, r3 = 13 mm.
Other dimensions: See the table.

$64.95

Ships within 6-8 weeks

Quantity Discount (%) Price
1 - 4 — $64.95
5 - 9 3.39% $62.75
10+ 5.7% $61.25
ProductPart number (SKU)MaterialSurfaceNumber of strandsHardenedHubDIN ISO No.No. of teethOuter diameter [da]Pitch circle diameter [d]Hub diameter [ND]Bore [B]Total length [L]WeightPrice
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 8 teeth material steel PN: 1251080012510800Steel (1045)Blank2NoOne sided08 B-2837.2 [mm]33.18 [mm]20 [mm]10 [mm]32 [mm]0.09 [kg] $9.14
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 9 teeth material steel PN: 1251090012510900Steel (1045)Blank2NoOne sided08 B-2941.0 [mm]37.13 [mm]24 [mm]10 [mm]32 [mm]0.13 [kg] $9.77
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 10 teeth material steel PN: 1251100012511000Steel (1045)Blank2NoOne sided08 B-21045.2 [mm]41.10 [mm]28 [mm]10 [mm]32 [mm]0.18 [kg] $10.84
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 11 teeth material steel PN: 1251110012511100Steel (1045)Blank2NoOne sided08 B-21148.7 [mm]45.07 [mm]32 [mm]12 [mm]35 [mm]0.25 [kg] $11.72
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 12 teeth material steel PN: 1251120012511200Steel (1045)Blank2NoOne sided08 B-21253.0 [mm]49.07 [mm]35 [mm]12 [mm]35 [mm]0.30 [kg] $12.34
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 13 teeth material steel PN: 1251130012511300Steel (1045)Blank2NoOne sided08 B-21357.4 [mm]53.07 [mm]38 [mm]12 [mm]35 [mm]0.36 [kg] $12.73
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 14 teeth material steel PN: 1251140012511400Steel (1045)Blank2NoOne sided08 B-21461.8 [mm]57.07 [mm]42 [mm]12 [mm]35 [mm]0.44 [kg] $13.67
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 15 teeth material steel PN: 1251150012511500Steel (1045)Blank2NoOne sided08 B-21565.5 [mm]61.09 [mm]46 [mm]12 [mm]35 [mm]0.52 [kg] $16.11
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 16 teeth material steel PN: 1251160012511600Steel (1045)Blank2NoOne sided08 B-21669.5 [mm]65.10 [mm]50 [mm]14 [mm]35 [mm]0.60 [kg] $16.77
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 17 teeth material steel PN: 1251170012511700Steel (1045)Blank2NoOne sided08 B-21773.6 [mm]69.11 [mm]54 [mm]14 [mm]35 [mm]0.70 [kg] $18.84
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 18 teeth material steel PN: 1251180012511800Steel (1045)Blank2NoOne sided08 B-21877.8 [mm]73.14 [mm]58 [mm]14 [mm]35 [mm]0.80 [kg] $20.77
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 19 teeth material steel PN: 1251190012511900Steel (1045)Blank2NoOne sided08 B-21981.7 [mm]77.16 [mm]62 [mm]14 [mm]35 [mm]0.92 [kg] $23.08
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 20 teeth material steel PN: 1251200012512000Steel (1045)Blank2NoOne sided08 B-22085.8 [mm]81.19 [mm]66 [mm]14 [mm]35 [mm]1.03 [kg] $22.79
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 21 teeth material steel PN: 1251210012512100Steel (1045)Blank2NoOne sided08 B-22189.7 [mm]85.22 [mm]70 [mm]16 [mm]40 [mm]1.28 [kg] $25.21
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 22 teeth material steel PN: 1251220012512200Steel (1045)Blank2NoOne sided08 B-22293.8 [mm]89.24 [mm]70 [mm]16 [mm]40 [mm]1.37 [kg] $26.44
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 23 teeth material steel PN: 1251230012512300Steel (1045)Blank2NoOne sided08 B-22398.2 [mm]93.27 [mm]70 [mm]16 [mm]40 [mm]1.45 [kg] $26.81
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 24 teeth material steel PN: 1251240012512400Steel (1045)Blank2NoOne sided08 B-224101.8 [mm]97.29 [mm]75 [mm]16 [mm]40 [mm]1.64 [kg] $28.79
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 25 teeth material steel PN: 1251250012512500Steel (1045)Blank2NoOne sided08 B-225105.8 [mm]101.33 [mm]80 [mm]16 [mm]40 [mm]1.81 [kg] $32.96
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 26 teeth material steel PN: 1251260012512600Steel (1045)Blank2NoOne sided08 B-226110.0 [mm]105.36 [mm]85 [mm]20 [mm]40 [mm]1.98 [kg] $33.61
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 27 teeth material steel PN: 1251270012512700Steel (1045)Blank2NoOne sided08 B-227114.0 [mm]109.40 [mm]85 [mm]20 [mm]40 [mm]2.08 [kg] $36.12
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 28 teeth material steel PN: 1251280012512800Steel (1045)Blank2NoOne sided08 B-228118.0 [mm]113.42 [mm]90 [mm]20 [mm]40 [mm]2.30 [kg] $39.20
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 30 teeth material steel PN: 1251300012513000Steel (1045)Blank2NoOne sided08 B-230126.1 [mm]121.50 [mm]100 [mm]20 [mm]40 [mm]2.74 [kg] $45.72
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 32 teeth material steel PN: 1251320012513200Steel (1045)Blank2NoOne sided08 B-232134.3 [mm]129.56 [mm]100 [mm]20 [mm]40 [mm]2.99 [kg] $47.71
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 35 teeth material steel PN: 1251350012513500Steel (1045)Blank2NoOne sided08 B-235146.7 [mm]141.68 [mm]100 [mm]20 [mm]40 [mm]3.38 [kg] $53.60
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 36 teeth material steel PN: 1251360012513600Steel (1045)Blank2NoOne sided08 B-236151.0 [mm]145.72 [mm]110 [mm]20 [mm]40 [mm]3.77 [kg] $56.33
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 37 teeth material steel PN: 1251370012513700––––––––––––– $64.95
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 38 teeth material steel PN: 1251380012513800Steel (1045)Blank2NoOne sided08 B-238158.6 [mm]153.80 [mm]110 [mm]20 [mm]40 [mm]4.07 [kg] $66.13
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 40 teeth material steel PN: 1251400012514000Steel (1045)Blank2NoOne sided08 B-240166.8 [mm]161.87 [mm]110 [mm]20 [mm]40 [mm]4.39 [kg] $71.08
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 45 teeth material cast iron PN: 1251450012514500Grey cast iron (A48)Blank2NoOne sided08 B-245188.0 [mm]182.07 [mm]90 [mm]24 [mm]50 [mm]3.32 [kg] $103.84
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 57 teeth material cast iron PN: 1251570012515700Grey cast iron (A48)Blank2NoOne sided08 B-257236.4 [mm]230.54 [mm]90 [mm]24 [mm]50 [mm]4.30 [kg] $123.55
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 76 teeth material cast iron PN: 1251760012517600Grey cast iron (A48)Blank2NoOne sided08 B-276313.3 [mm]307.33 [mm]100 [mm]24 [mm]56 [mm]6.27 [kg] $164.15
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 95 teeth material cast iron PN: 1251830012518300Grey cast iron (A48)Blank2NoOne sided08 B-295390.1 [mm]384.11 [mm]100 [mm]24 [mm]56 [mm]8.25 [kg] $232.16
Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 114 teeth material cast iron PN: 1251880012518800Grey cast iron (A48)Blank2NoOne sided08 B-2114466.9 [mm]460.90 [mm]100 [mm]24 [mm]63 [mm]10.51 [kg] $321.61

Double-strand sprocket ZRS with hub 08 B-2 1/2×5/16″ 37 teeth material steel PN: 12513700

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