| Part number (SKU) | 12577118 |
| Material | Steel (1045) |
| Surface | Blank |
| Number of strands | 2 |
| Hardened | No |
| Hub | One sided |
| DIN ISO No. | 08 B-2 (Taper) |
| No. of teeth | 18 |
| Outer diameter [da] | 77.8 [mm] |
| Pitch circle diameter [d] | 73.14 [mm] |
| Hub diameter [ND] | 60 [mm] |
| Total length [L] | 25 [mm] |
| Weight | 0.30 [kg] |
| Taper bushing (type) | 1210 |
| Min. bore diameter | 10 [mm] |
| Max. bore diameter | 32 [mm] |
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 | 0.309 kg |
|---|---|
| Dimensions | 115 × 115 × 43 cm |
| Material | |
| Surface | |
| Number of strands | |
| Hardened | |
| Hub | |
| DIN ISO No. | |
| No. of teeth | |
| Outer diameter | |
| Pitch circle diameter | |
| Hub diameter | |
| Total length | |
| Weight | |
| Taper bushing (type) | |
| Min. bore diameter | |
| Max. bore diameter |
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 ZRT 08 B-2 1/2×5/16″ 18 teeth material steel for taper bush type 1210 PN: 12577118
Material:: Steel C45, not hardened. Product numbers ending with G
are from grey cast iron GG25.
Prepared for Taper clamping bush. General dimensions: B1 = 7,2
mm, B2 = 21 mm, c = 1,3 mm, r3 = 13 mm. Other dimensions: See the table.
In this youtube video we show the mounting and demounting of taper
bushes: Video clip (3.5
Minutes)
$35.66
Availability: 3 in stock (backorders ship within 1-2 weeks)
| Quantity | Discount (%) | Price |
|---|---|---|
| 1 - 4 | — | $35.66 |
| 5 - 9 | 39.54% | $21.56 |
| 10 - 24 | 11.97% | $31.39 |
| 25 - 49 | 23.92% | $27.13 |
| 50 - 99 | 31.1% | $24.57 |
| 100 - 249 | 48.15% | $18.49 |
| 250+ | 50.98% | $17.48 |
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| Product | Part number (SKU) | Material | Surface | Number of strands | Hardened | Hub | DIN ISO No. | No. of teeth | Outer diameter [da] | Pitch circle diameter [d] | Hub diameter [ND] | Total length [L] | Weight | Taper bushing (type) | Min. bore diameter | Max. bore diameter | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Double-strand sprocket ZRT 08 B-2 1/2×5/16″ 15 teeth material steel for taper bush type 1008 PN: 12577115 | 12577115 | Steel (1045) | Blank | 2 | No | One sided | 08 B-2 (Taper) | 15 | 65.0 [mm] | 61.09 [mm] | 46 [mm] | 22 [mm] | 0.22 [kg] | 1008 | 9 [mm] | 25 [mm] | $24.80 |
| Double-strand sprocket ZRT 08 B-2 1/2×5/16″ 16 teeth material steel for taper bush type 1108 PN: 12577116 | 12577116 | Steel (1045) | Blank | 2 | No | One sided | 08 B-2 (Taper) | 16 | 69.5 [mm] | 65.10 [mm] | 50 [mm] | 22 [mm] | 0.22 [kg] | 1108 | 9 [mm] | 28 [mm] | $33.47 |
| Double-strand sprocket ZRT 08 B-2 1/2×5/16″ 17 teeth material steel for taper bush type 1210 PN: 12577117 | 12577117 | Steel (1045) | Blank | 2 | No | One sided | 08 B-2 (Taper) | 17 | 73.6 [mm] | 69.11 [mm] | 56 [mm] | 25 [mm] | 0.23 [kg] | 1210 | 10 [mm] | 32 [mm] | $31.80 |
| Double-strand sprocket ZRT 08 B-2 1/2×5/16″ 18 teeth material steel for taper bush type 1210 PN: 12577118 | 12577118 | Steel (1045) | Blank | 2 | No | One sided | 08 B-2 (Taper) | 18 | 77.8 [mm] | 73.14 [mm] | 60 [mm] | 25 [mm] | 0.30 [kg] | 1210 | 10 [mm] | 32 [mm] | $35.66 |
| Double-strand sprocket ZRT 08 B-2 1/2×5/16″ 19 teeth material steel for taper bush type 1210 PN: 12577119 | 12577119 | Steel (1045) | Blank | 2 | No | One sided | 08 B-2 (Taper) | 19 | 81.7 [mm] | 77.16 [mm] | 62 [mm] | 25 [mm] | 0.38 [kg] | 1210 | 10 [mm] | 32 [mm] | $39.50 |
| Double-strand sprocket ZRT 08 B-2 1/2×5/16″ 20 teeth material steel for taper bush type 1610 PN: 12577120 | 12577120 | Steel (1045) | Blank | 2 | No | One sided | 08 B-2 (Taper) | 20 | 85.8 [mm] | 81.19 [mm] | 66 [mm] | 25 [mm] | 0.45 [kg] | 1610 | 12 [mm] | 42 [mm] | $43.85 |
| Double-strand sprocket ZRT 08 B-2 1/2×5/16″ 21 teeth material steel for taper bush type 1610 PN: 12577121 | 12577121 | Steel (1045) | Blank | 2 | No | One sided | 08 B-2 (Taper) | 21 | 89.7 [mm] | 85.22 [mm] | 70 [mm] | 25 [mm] | 0.50 [kg] | 1610 | 12 [mm] | 42 [mm] | $59.56 |
| Double-strand sprocket ZRT 08 B-2 1/2×5/16″ 22 teeth material steel for taper bush type 1610 PN: 12577122 | 12577122 | Steel (1045) | Blank | 2 | No | One sided | 08 B-2 (Taper) | 22 | 93.8 [mm] | 89.24 [mm] | 76 [mm] | 25 [mm] | 0.55 [kg] | 1610 | 12 [mm] | 42 [mm] | $60.57 |
| Double-strand sprocket ZRT 08 B-2 1/2×5/16″ 23 teeth material steel for taper bush type 1610 PN: 12577123 | 12577123 | Steel (1045) | Blank | 2 | No | One sided | 08 B-2 (Taper) | 23 | 98.2 [mm] | 93.27 [mm] | 79 [mm] | 25 [mm] | 0.62 [kg] | 1610 | 12 [mm] | 42 [mm] | $63.70 |
| Double-strand sprocket ZRT 08 B-2 1/2×5/16″ 24 teeth material steel for taper bush type 2012 PN: 12577124 | 12577124 | Steel (1045) | Blank | 2 | No | One sided | 08 B-2 (Taper) | 24 | 101.8 [mm] | 97.29 [mm] | 84 [mm] | 32 [mm] | 0.68 [kg] | 2012 | 12 [mm] | 42 [mm] | $64.60 |
| Double-strand sprocket ZRT 08 B-2 1/2×5/16″ 25 teeth material steel for taper bush type 2012 PN: 12577125 | 12577125 | Steel (1045) | Blank | 2 | No | One sided | 08 B-2 (Taper) | 25 | 105.8 [mm] | 101.33 [mm] | 87 [mm] | 32 [mm] | 0.72 [kg] | 2012 | 12 [mm] | 50 [mm] | $77.67 |
| Double-strand sprocket ZRT 08 B-2 1/2×5/16″ 26 teeth material steel for taper bush type 2012 PN: 12577126 | 12577126 | Steel (1045) | Blank | 2 | No | One sided | 08 B-2 (Taper) | 26 | 110.0 [mm] | 105.36 [mm] | 87 [mm] | 32 [mm] | 0.82 [kg] | 2012 | 12 [mm] | 50 [mm] | $80.86 |
| Double-strand sprocket ZRT 08 B-2 1/2×5/16″ 27 teeth material steel for taper bush type 2012 PN: 12577127 | 12577127 | Steel (1045) | Blank | 2 | No | One sided | 08 B-2 (Taper) | 27 | 114.0 [mm] | 109.40 [mm] | 87 [mm] | 32 [mm] | 0.92 [kg] | 2012 | 12 [mm] | 50 [mm] | $83.76 |
| Double-strand sprocket ZRT 08 B-2 1/2×5/16″ 28 teeth material steel for taper bush type 2012 PN: 12577128 | 12577128 | Steel (1045) | Blank | 2 | No | One sided | 08 B-2 (Taper) | 28 | 118.0 [mm] | 113.42 [mm] | 87 [mm] | 32 [mm] | 1.10 [kg] | 2012 | 12 [mm] | 50 [mm] | $66.53 |
| Double-strand sprocket ZRT 08 B-2 1/2×5/16″ 30 teeth material steel for taper bush type 2012 PN: 12577130 | 12577130 | Steel (1045) | Blank | 2 | No | One sided | 08 B-2 (Taper) | 30 | 126.1 [mm] | 121.50 [mm] | 87 [mm] | 32 [mm] | 1.25 [kg] | 2012 | 12 [mm] | 50 [mm] | $92.09 |
| Double-strand sprocket ZRT 08 B-2 1/2×5/16″ 38 teeth material steel for taper bush type 2012 PN: 12577138 | 12577138 | Steel (1045) | Blank | 2 | No | One sided | 08 B-2 (Taper) | 38 | 158.6 [mm] | 153.80 [mm] | 100 [mm] | 32 [mm] | 2.50 [kg] | 2012 | 12 [mm] | 50 [mm] | $94.77 |
| Double-strand sprocket ZRT 08 B-2 1/2×5/16″ 45 teeth material steel for taper bush type 2012 PN: 12577145 | 12577145 | Steel (1045) | Blank | 2 | No | One sided | 08 B-2 (Taper) | 45 | 188.0 [mm] | 182.07 [mm] | 111 [mm] | 32 [mm] | 3.81 [kg] | 2012 | 12 [mm] | 50 [mm] | $106.69 |
| Double-strand sprocket ZRT 08 B-2 1/2×5/16″ 45 teeth material cast iron for taper bush type 2012 PN: 12577145G | 12577145G | Grey cast iron (A48) | Blank | 2 | No | One sided | 08 B-2 (Taper) | 45 | 188.0 [mm] | 182.07 [mm] | 100 [mm] | 32 [mm] | 2.30 [kg] | 2012 | 12 [mm] | 50 [mm] | $123.85 |
| Double-strand sprocket ZRT 08 B-2 1/2×5/16″ 57 teeth material cast iron for taper bush type 2012 PN: 12577157G | 12577157G | Grey cast iron (A48) | Blank | 2 | No | One sided | 08 B-2 (Taper) | 57 | 236.4 [mm] | 230.54 [mm] | 111 [mm] | 32 [mm] | 3.64 [kg] | 2012 | 12 [mm] | 50 [mm] | $139.76 |
| Double-strand sprocket ZRT 08 B-2 1/2×5/16″ 76 teeth material cast iron for taper bush type 2012 PN: 12577176G | 12577176G | Grey cast iron (A48) | Blank | 2 | No | One sided | 08 B-2 (Taper) | 76 | 313.3 [mm] | 307.33 [mm] | 111 [mm] | 32 [mm] | 5.50 [kg] | 2012 | 12 [mm] | 50 [mm] | $198.92 |
| Double-strand sprocket ZRT 08 B-2 1/2×5/16″ 95 teeth material cast iron for taper bush type 2012 PN: 12577183G | 12577183G | Grey cast iron (A48) | Blank | 2 | No | One sided | 08 B-2 (Taper) | 95 | 390.1 [mm] | 384.11 [mm] | 111 [mm] | 32 [mm] | 6.80 [kg] | 2012 | 12 [mm] | 50 [mm] | $289.19 |
| Double-strand sprocket ZRT 08 B-2 1/2×5/16″ 114 teeth material steel for taper bush type 2517 PN: 12577188 | 12577188 | Steel (1045) | Blank | 2 | No | One sided | 08 B-2 (Taper) | 114 | 466.9 [mm] | 460.90 [mm] | 110 [mm] | 45 [mm] | 26.30 [kg] | 2517 | 15 [mm] | 65 [mm] | $659.55 |
| Double-strand sprocket ZRT 08 B-2 1/2×5/16″ 114 teeth material cast iron for taper bush type 2517 PN: 12577188G | 12577188G | Grey cast iron (A48) | Blank | 2 | No | One sided | 08 B-2 (Taper) | 114 | 466.9 [mm] | 460.90 [mm] | 124 [mm] | 45 [mm] | 13.30 [kg] | 2517 | 15 [mm] | 65 [mm] | $365.88 |