54+ Product Categories.
Five Engineering Families.
From timing pulleys to polyurethane edge rollers, the SEW portfolio is organised the way engineers think — by function, not by alphabet. Every part runs the same route: measure, engineer, manufacture, validate.
Five Families. One Route:
Measure → Engineer → Validate.
Not one giant list — five engineering families, each with its own materials, tolerances and failure modes.
Power Transmission
The rotating heart of the machine — engineered to mesh, run true and carry load.
Fluid & Process Components
Parts that hold pressure, steam and process media — matched to the service, not just the size.
Precision Mechanical Components
Machined-to-tolerance parts where fit decides function — from standard flanges to full custom fabrication.
Polymer & Non-Metallic
Engineered polymers and light alloys where steel is the wrong answer — wear, grip and weight.
Industrial Replacement Parts
The spares OEMs no longer supply — reverse-engineered, manufactured and validated.
Not in the Catalogue?
No drawing, a worn sample, a discontinued original — this is the portfolio's open lane.
Spares Begin With Knowing
Where the Machine Wears.
Fifteen-plus years around textile finishing machinery means SEW knows what fails first — and what the replacement has to survive.
SEW engineers spares for these machine families — from a single worn roller shaft to the gear train behind it.
The Core Categories. And What
"Engineered" Means for Each.
The most-requested of SEW's 54+ categories. A spare isn't picked off a shelf here — each carries its own engineering route, and a starting point as simple as the part in your hand.
| Ref | Category | Typical engineering scope | Start from |
|---|---|---|---|
| Family 01 — Power Transmission | |||
| 01 | Timing Pulleys | Pitch, profile & tooth count measured · machined · tooth form verified | Sample or drawing |
| 02 | Gear Wheels | Module & geometry established · gear cut · inspected to drawing | Sample, drawing or mating gear |
| 03 | Worm Gears & Shafts | Worm and wheel reverse-engineered as a matched pair | Worn set or drawing |
| 04 | Shafts | Turned & ground · keyways, threads and steps to tolerance | Drawing or failed shaft |
| 05 | Belts & Pulleys | Groove profile matched to belt section · bore & keyway to fit | Belt section + pulley sample |
| 06 | Sprockets | Chain pitch & tooth form matched · bore machined to shaft | Chain spec or sample |
| 07 | Load Wheels | Profile & load path assessed · machined · fit verified | Sample or application data |
| Family 02 — Fluid & Process Components | |||
| 08 | Valves & Fittings | Matched to line size & service · verified before supply | Spec or sample |
| 09 | Hydraulic Components | Reverse-engineered from worn parts · machined & sealed | Failed component |
| 10 | Pneumatic Components | Measured & re-made · sealing surfaces finished | Failed component |
| 11 | Gaskets, Seals & O-Rings | Profile & material matched to the application | Sample or housing dimensions |
| 12 | Steam Boxes | Fabricated to machine geometry · engineered with awareness of applicable codes | Machine measurement |
| 13 | Gas Bars | Drilled & fabricated to machine pattern · fit-checked | Machine measurement or sample |
| Family 03 — Precision Mechanical Components | |||
| 14 | Flanges (Std & Non-Std) | Standard patterns or non-standard geometry from measurement | Spec, drawing or sample |
| 15 | Bearing Blocks | Housing machined · bearing seats to fit tolerance | Sample or machine measurement |
| 16 | Bearings | Matched or custom-machined · running clearance verified | Sample or spec |
| 17 | Bushings | Bronze, steel or cast nylon · turned to running or interference fit | Sample or drawing |
| 18 | Fasteners | Non-standard fasteners machined to sample or drawing | Sample or drawing |
| 19 | Frames | Fabricated, machined & squared to reference dimensions | Drawing or machine measurement |
| 20 | Custom-Fabricated Parts | Built from drawing, sketch or sample — the true custom lane | Whatever exists |
| 21 | Brass Components | Turned & milled brass parts · thread & fit inspection | Sample or drawing |
| Family 04 — Polymer & Non-Metallic | |||
| 22 | Nylon & Cast Nylon Products | Cast & machined to profile · matched to the wear application | Sample or drawing |
| 23 | Polyurethane Edge Rollers & Wheels | Core machined · polyurethane applied & profiled | Worn roller or wheel |
| 24 | Polyurethane Products | Hardness & profile matched to the duty | Sample or application data |
| 25 | Aluminium Wheels | Machined to profile · bore & keyway to fit | Sample or drawing |
| Family 05 — Industrial Replacement Parts | |||
| 26 | Machine Spares | Reverse-engineered from the failed part · manufactured · validated | Failed part |
| 27 | Packing Machine Spares | Measured from sample or on-machine · made to suit | Sample or machine access |
| 28 | Oil Expeller Spares | Wear parts re-engineered · material selected for the duty | Worn part |
| 29 | Agricultural Machine Spares | Replacements engineered when originals are unavailable | Sample or photo |
| 30 | Gearboxes | Gears, shafts & housings re-engineered · assembled & checked | Failed unit or drawing |
| 31 | Specialized Components | Whatever doesn't fit a catalogue — engineered to order | A conversation + whatever exists |
Scope entries are indicative engineering routes, not fixed offerings — every requirement is assessed individually before SEW commits to an approach.
The Kind of Parts We're Handed.
Every part on this wall was engineered and manufactured by SEW.
Don't See Your Part?
That's Usually Where We Start.
The categories above are where most requirements land. The interesting work arrives outside them.
Only a worn sample or a photograph? That's enough to open the engineering conversation.
The manufacturer moved on or shut down. Your machine didn't.
A geometry no catalogue carries. It has to be measured and made.
Production is waiting on the part. Route it through the Part Rescue Centre.
Send Us Your Spares List.
We'll Map the Engineering Route for Each.
Category by category — what to measure, what to reverse-engineer, what to simply make well.