V-Belt Pulleys for Taper Lock Bushes
Taper Lock SPZ, SPA, SPB, SPC V-belt pulleys for Taper bushes are the basic type of V-belt pulleys. They are produced in standard series and dimensions from gray cast iron. Their design is based on the ISO 4183 (DIN 2211) standard.
The pulleys are mounted to the shafts by means of Taper Lock cone bushings, thanks to which there is not only a fixing on the shaft with a keyway, but also the axial locking against displacement.
SPZ Taper Lock
SPB Taper Lock
Pulleys Fields of Use
The V-belt pulleys for Taper bush meet the highest requirements of modern drive technology and are used in all areas of mechanical engineering, from fine mechanics to heavy engineering.
They are typically used in compressors, blowers, machine tools, in the paper and chemical industry and in many other machines.
Pulleys Material
Fine grain cast-iron grade 220–260.
Other materials to order.
| Parameter | Standard |
|---|---|
| Eccentricity of O/D to bore | DIN 2211 Part. 1 |
| Groove side wobble tolerance | DIN 2211 Part. 1 |
| Surface roughness | ISO 254 |
| Balance quality grade | VDI 2060, ISO 1940 |
Pulleys with Dw > 125 mm are statically balanced, degree q 6.3 at 1500 rpm. On request, the pulleys can be balanced dynamically in two planes, degree q 6.3 - q 2.5.
Pulleys Basic Profile
- Pulley SPZ for belts SPZ, XPZ, 3V, 3VX, Z, ZX, 10
- Pulley SPA for belts SPA, XPA, A, AX, 13
- Pulley SPB for belts SPB, XPB, 5V, 5VX, B, BX, 17
- Pulley SPC for belts SPC, XPC, C, CX, 22
Pulleys Code Description
Example:
SPB 180-4 TB 2517
| Code Part | Description |
|---|---|
| SPB |
Profile |
| 180 |
Nominal diameter of pulley in mm |
| 4 |
Number of grooves |
| TB |
Taper bush |
| 2517 |
Type of bush |
Pulleys Profile and Dimensions
| Profile | Dm [mm] |
α [°] |
B1 [mm] |
Bm [mm] |
E [mm] |
F [mm] |
C [mm] |
T [mm] |
|---|---|---|---|---|---|---|---|---|
| SPZ | (≤80) >80 | (38) 34 | 9.7 | 8.5 | 12.0 | 8 | 2.0 | 11.0 |
| SPA | (≤118) >118 | (38) 34 | 12.7 | 11.0 | 15.0 | 10 | 2.8 | 13.8 |
| SPB | (≤190) >190 | (38) 34 | 16.3 | 14.0 | 19.0 | 12 | 3.5 | 17.5 |
| SPC | (≤315) >315 | (38) 34 | 22.0 | 19.0 | 25.5 | 17 | 4.8 | 23.8 |
Crown width \(B\): \[B = {E^{(n-1)} + 2 \cdot F}\ {[mm]}\] where \(n\) is the number of grooves.
Other technical data for particular groove dimensions are to be found in the technical documentation.
Documents for Download
Dimensions and Parameters of V-Belt Pulleys for Taper Lock Bushes
TYMA CZ Data Sheets
Czech and English (PDF 2.98 MB)
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Measuring Instruments
Our professional-quality special tools and measuring instruments will assist you in maintaining and fitting drive components.
