Pulleys & Taper-lock Bushes
Grooved pulleys and the tapered bushes that lock them to the shaft. A worn pulley groove will destroy a new belt set quickly, so pulleys are a wear item and should be gauged, not assumed good. SES holds the range as an authorised JK Fenner distributor, covering groove sections A, B, C, D, SPZ, SPA, SPB, SPC, poly-V; grooves 1 to 10 per pulley; bush range 1008 to 5050 taper-lock series; bore Pilot bore or finished to taper-lock bush. Executions include classical section v-pulleys, wedge section v-pulleys, Poly-V pulleys, timing pulleys, among others. It is specified most often into fan and blower drives and pump drive assemblies. Every part is genuine JK Fenner through official channels, with designation, specification and options confirmed against your duty before it ships — supplied from Kolkata and our branch network, with breakdown cover that does not sit in an inbox.
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From integrated steel plants to power utilities and EPC majors — the works that cannot afford a counterfeit part specify through SES.
Pulleys
Classical, wedge, poly-V, timing
Fixing
Taper-lock bush or pilot bore
Material
Cast iron standard
Check
Groove gauge at every belt change
Where it runs.
You will find Pulleys & Taper-lock Bushes in the parts of a plant where this particular duty actually occurs. In practice that means fan and blower drives, pump drive assemblies, crusher and mill drives, and equally conveyor drive and take-up units, compressor drives, agro and food processing machinery. What links them is the duty rather than the machine name — pulleys: Classical, wedge, poly-V, timing. If your installation is not on that list it matters less than you would think: the operating condition decides the specification. Send us the load, the speed, the running temperature and the environment it runs in, and we will match it to the right execution in the JK Fenner range and confirm what is in stock.
Specify it against the duty.
Specification here follows the operating condition, not the catalogue. Belts sitting low in the groove or touching the base — Replace the pulley. Once the flanks are worn the belt drives on its base and both are lost. Frequent pulley changes for product changeovers — Taper-lock bush fixing so the pulley comes off without a puller and without damaging the shaft. High-speed drive requiring smooth running — A dynamically balanced pulley — an out-of-balance pulley shows up as bearing failure, not as vibration complaints. Where two of those apply at once, specify for the harsher of the two — under-specifying is what puts the part back on the bench a month later. Send us the duty and we will confirm the execution.
Ordering this from SES.
Gauge the grooves with a groove template every time belts are changed. Replacing belts onto worn pulleys is the single most expensive false economy on a belt drive. Send the designation off the failed part and we will confirm the JK Fenner equivalent and stock position.