| Customization: | Available |
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| Certification: | CE, ISO |
| Pulley Sizes: | Spz SPA Spb Spc |
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Key Differences: V-Belt Pulleys for Taper Bushes vs. V-Belt Pulleys with Solid Hub
| Feature | V-Belt Pulleys for Taper Bushes | V-Belt Pulleys with Solid Hub |
| Hub Structure | Large straight bore. Requires a separate taper bush (TB, QD, S, BSP, etc.) | Solid, one-piece hub with a finished bore. |
| Shaft Connection | Via friction grip of the taper bush. Key optional for high torque. | Direct interference fit + key in keyway + set screws. |
| Installation | Easy & Quick: Tighten bush bolts. No special tools needed (just wrenches). | Complex & Slow: Requires presses, heating (hub), cooling (shaft), or heavy force. |
| Removal | Easy & Quick: Loosen bush bolts. Minimal shaft/hub damage risk. | Difficult & Slow: Requires pullers, presses, or heating. High risk of shaft/hub/key damage. |
| Maintenance Flexibility | Excellent: Quick repositioning, replacement, or shaft size change (new bush). | Poor: Essentially fixed position/shaft. Replacement is a major operation. |
| Shaft Diameter Flexibility | High: One pulley bore fits many shaft sizes by changing the bush insert. | None: Pulley bore machined for one specific shaft diameter. |
| Shaft Machining Requirements | Lower: Standard tolerance diameter. Keyway optional. | Higher: Precise tolerance diameter. Keyway mandatory. |
| Initial Cost | Higher: Cost of pulley plus cost of taper bush. | Lower: Cost of pulley only. |
| Long-Term Cost (Maintenance) | Potentially Lower: Reduced labor, downtime, and shaft damage. | Potentially Higher: Labor, tooling, downtime, and damage risk during service. |
| Torque Transmission | Primarily via friction lock of the bush. Key augments if used. | Primarily via the key + friction from interference fit. Set screws augment. |
| Axial Space | Requires space for bush and bolts. | More compact hub design possible. |
| Typical Applications | General industrial, maintenance-heavy, multi-shaft size environments, test rigs. | Permanent installations, high-precision needs, extreme space constraints. |
| Type | Grooves| | P | o | Type | Bush | Max Bore |
E | F | J | K | L | M | N |
| SPZ 50-01 | 1 | 50 | 54 | 9 | 1008 | 25 | - | 37 | 26 | 15 | 22 | - | - |
| SPZ 56-01 | 1 | 56 | 60 | 9 | 1008 | 25 | - | 37 | 30 | 15 | 22 | - | - |
| SPZ 60-01 | 1 | 60 | 64 | 9 | 1008 | 25 | - | 22 | - | - | 22 | - | - |
| SPZ 63-01 | 1 | 63 | 67 | 1 | 1108 | 28 | - | 16 | - | - | 22 | 6 | 62 |
| SPZ 67-01 | 1 | 67 | 71 | 1 | 1108 | 28 | - | 16 | - | - | 22 | 6 | 62 |
| SPZ 71-01 | 1 | 71 | 75 | 1 | 1108 | 28 | - | 16 | - | - | 22 | 6 | 62 |
| SPZ 75-01 | 1 | 75 | 79 | 1 | 1108 | 28 | · | 16 | - | - | 22 | 6 | 62 |
| SPZ 80-01 | 1 | 80 | 84 | 1 | 1210 | 32 | - | 16 | - | - | 25 | 9 | 75 |
| SPZ 85-01 | 1 | 85 | 89 | 1 | 1210 | 32 | - | 16 | - | - | 25 | 9 | 75 |
| SPZ 90-01 | 1 | 90 | 94 | 1 | 1210 | 32 | - | 16 | - | - | 25 | 9 | 75 |
| SPZ 95-01 | 1 | 95 | 99 | 1 | 1210 | 32 | - | 16 | - | - | 25 | 9 | 75 |
| SPZ 100-01 | 1 | 100 | 104 | 1 | 1210 | 32 | - | 16 | - | - | 25 | 9 | 75 |
| SPZ 106-01 | 1 | 106 | 110 | 1 | 1610 | 42 | - | 16 | - | - | 25 | 9 | 80 |
| SPZ 112-01 | 1 | 112 | 116 | 1 | 1610 | 42 | - | 16 | - | - | 25 | 9 | 80 |
| SPZ 118-01 | 1 | 118 | 122 | 1 | 1610 | 42 | · | 16 | - | - | 25 | 9 | 80 |
| SPZ 125-01 | 1 | 125 | 129 | 1 | 1610 | 42 | - | 16 | - | - | 25 | 9 | 80 |
| SPZ 132-01 | 1 | 132 | 136 | 1 | 1610 | 42 | - | 16 | - | - | 25 | 9 | 80 |
| SPZ 140-01 | 1 | 140 | 144 | 7 | 1610 | 42 | 8 | 16 | 112 | 25 | 9 | 80 | |
| SPZ 150-01 | 1 | 150 | 154 | 7 | 1610 | 42 | 8 | 16 | 122 | - | 25 | 9 | 80 |
| SPZ 160-01 | 1 | 160 | 164 | 7 | 1610 | 42 | - | 16 | 132 | 25 | 9 | 80 | |
| SPZ 170-01 | 1 | 170 | 174 | 7 | 1610 | 42 | - | 16 | 142 | - | 25 | 9 | 80 |
| SPZ 180-01 | 1 | 180 | 184 | 7 | 1610 | 42 | - | 16 | 152 | - | 25 | 9 | 80 |
| SPZ 190-01 | 1 | 190 | 194 | 7 | 1610 | 42 | - | 16 | 162 | - | 25 | 9 | 80 |
| SPZ 200-01 | 1 | 200 | 204 | 7 | 2012 | 50 | - | 16 | 172 | - | 32 | 16 | 100 |
| SPZ 224-01 | 1 | 224 | 228 | 4 | 2012 | 50 | 15 | 16 | 196 | . | 32 | 16 | 100 |
| SPZ 250-01 | 1 | 250 | 254 | 4 | 2012 | 50 | - | 16 | 222 | 8 | 32 | 8 | 100 |
| SPZ 280-01 | 1 | 280 | 284 | 4 | 2012 | 50 | - | 16 | 252 | 8 | 32 | 8 | 100 |
| SPZ 315-01 | 1 | 315 | 319 | 4 | 2012 | 50 | - | 16 | 287 | 8 | 32 | 8 | 100 |
| SPZ 355-01 | 1 | 355 | 359 | 4 | 2012 | 50 | - | 16 | 327 | 8 | 32 | 8 | 100 |
| SPZ 400-01 | 1 | 400 | 404 | 4 | 2012 | 50 | - | 16 | 372 | 8 | 32 | 8 | 100 |
| SPZ 450-01 | 1 | 450 | 454 | 4 | 2517 | 60 | - | 16 | 422 | 14.5 | 45 | 14.5 | 120 |
| Model NO. | SPZ | Manufacturing Process | Casting |
| Specifications | European or American Standard or Customized | Transport Package | Plastic Bag, Carton Box. |
| Trademark | SMCC, clients brand or No mark | Material | Iron |
| Surface Treatment | Oxygenation,Phosphating Blacken | Origin | China Mainland |
| Application | Chemical Industry, Grain Transport, Mining Transport, Power Plant, Engineering Hydraulic Cylinder, Forging Machine | HS Code | 8431390000 |
| Process | CNC Machining | Production Capacity | 100000 PCS/Months |
The company is located in the beautiful coastal city of Qingdao. We are a large enterprise group that integrates R&D, manufacturing, marketing, market and technical services. We have three major research and production bases as well as a large marketing center. Our products cover transmission components, bearings, chains, sprockets, tractor drive axles and hydraulic steering devices. 219 sets of advanced automated production equipment ensure the quality of our products. We can design and develop products that meet the specific needs of customers, and also provide OEM customization services.
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