Pulley SPZ 63/2 for Taper Lock bushing 1108 — Optibelt
The offer includes the pulley only. The Taper Lock bushing is not included and is sold separately.
Optibelt TB SPZ 63/2 cast-iron pulley, solid, with two grooves, intended for fitting with a type 1108 bushing. Select the bushing bore to match the shaft diameter.
Select a Taper Lock bushing for this pulley
Required bushing type: 1108. Choose a bore matching the shaft diameter. Clicking a tile opens a separate bushing page — it does not add the bushing to the basket automatically.
Check the bushing price and availability on its product page. These are selected bores, not the full range for type 1108.
Pulley dimensions and specifications
| Manufacturer | Optibelt |
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| Designation | TB SPZ 63/2 |
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| Pulley profile | SPZ |
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| Number of grooves | 2 |
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| Datum diameter D | 63 mm |
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| Outside diameter Da | 67 mm |
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| Pulley width B | 28 mm |
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| Required bushing type | Taper Lock 1108 — sold separately |
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| Material | Cast iron |
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| Design | Solid pulley |
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| Belt profiles specified for this pulley | Z, HZ, ZX, SPZ, XPZ |
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| OEM reference | ZT00632 |
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How to select the pulley and bushing
Check the belt profile, diameter and two grooves of the pulley. Use a type 1108 bushing and select its bore to match the shaft. Type 1108 does not indicate the shaft diameter. Allow for the keyed connection. Available from 1 piece, fulfilment within 48 hours. The pulley price does not include the bushing; the products are ordered separately.
Taper Lock 1108 bushing installation — summary for Optibelt
Switch off the drive and secure it against starting. Follow the machine manufacturer's instructions.
- Degrease the shaft, bushing bore and both tapered surfaces; leave them free of oil.
- Insert the bushing into the hub and align the threaded and unthreaded halves of the holes.
- Lightly oil only the screws and fit them loosely.
- Position the assembly on the shaft; if a key is used, maintain clearance above it. Check pulley alignment before and after tightening.
- Tighten evenly with a torque wrench: Optibelt TB 1108 — 5,7 Nm for each of the two screws. Do not apply this value to other types or brands.
- After 30–60 minutes of operation, stop and secure the machine; check that the screws are tight. Protect unused holes with grease according to the instructions.
This summary does not replace the instructions for the particular bushing and machine. Full Optibelt instructions — PDF, table on page 2, installation on page 4.
The main image is an original illustration of a solid pulley with two grooves, without bushing. The offer table specifies the dimensions and required bushing type. Before selecting a belt, check the minimum permitted pulley diameter and operating conditions in the documentation for the particular belt.
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