Centrifugally Cast Rings — Hub, Drum, Bearing and Wear Rings
Cast iron, SG iron and stainless steel rings made to your drawing
ISO 9001:2015 Certified — Certificate No. QM00524000000165
Jaidarshan Indocraft Pvt. Ltd. has been centrifugally casting cylindrical components in Ahmedabad since 1975. Alongside our cylinder liner range we produce rings — the same process and the same metallurgy, cut to a different proportion.
A ring is a short section of centrifugally cast tube. That is precisely why it is worth buying from a spinning foundry rather than a sand foundry: there is no core, no parting line, and no cope-and-drag mismatch to machine away. The wall is concentric as cast.
To us it is simply a ring. To you it may be a hub ring, a wear ring, a bearing blank or a spacer — the part is the same, and we make all of them.
What Buyers Call This Part
The same plain cylindrical ring carries a different name in every industry. If your part is on this list, or resembles anything on it, we can cast it.
Automotive and transport
Hub ring · wheel hub ring · brake drum ring · drum ring · clutch ring · bearing ring · axle spacer ring
Pumps, compressors and hydraulics
Wear ring · wearing ring · casing wear ring · impeller wear ring · shaft sleeve · wear sleeve · seal ring · seal running ring · labyrinth ring · guide ring · packing ring
Bearings and power transmission
Bearing race blank · bush · bushing blank · spacer ring · distance ring · distance piece · thrust ring · collar ring · pulley ring · coupling ring
Rotating electrical machines
Motor ring · stator ring · rotor ring
Process, mining and general engineering
Roll ring · roller ring · idler ring · flange ring · mould ring · die ring · trunnion ring · ring blank
General trade terms
Cast ring · cast iron ring · SG iron ring · stainless steel ring · spun ring · centrifugal cast ring · cylinder ring · sleeve ring · proof machined ring · OD grind ring
We work from your drawing, your sample, or both.
Size Range
| Bore (ID) | 34 mm to 355 mm |
| Outer diameter (OD) | 38 mm to 378 mm |
| Length / height | 13 mm to 60 mm as standard |
| Wall thickness | 2.0 mm to 11.5 mm |
| Metal grades | Cast iron, SG iron, stainless steel |
Sizes outside this range are produced to requirement — our centrifugal line runs to 400 mm ID and 500 mm OD, and our machining capacity extends to 650 mm length.
Sizes From Current Production
These are live sizes, not a fixed catalogue. Anything between and beyond them is made to order.
| Bore (mm) | OD (mm) | Length (mm) | Wall (mm) |
|---|---|---|---|
| 34 | 38 | 13 | 2.0 |
| 36 | 40 | 13 | 2.0 |
| 41 | 45 | 13 | 2.0 |
| 46 | 51 | 15 | 2.5 |
| 108 | 115 | 35 | 3.5 |
| 128 | 135 | 35 | 3.5 |
| 128 | 136 | 35 | 4.0 |
| 128 | 137 | 35 | 4.5 |
| 128 | 138 | 35 | 5.0 |
| 138 | 145 | 35 | 3.5 |
| 150 | 158 | 35 | 4.0 |
| 150 | 158 | 50 | 4.0 |
| 337 | 345 | 60 | 4.0 |
| 355 | 378 | 60 | 11.5 |
Materials
| Grade | Standard | Where it suits |
|---|---|---|
| Grey cast iron | IS 210 · ASTM A48 | Wear surfaces, damping, self-lubricating duty |
| SG / ductile iron | IS 1865 · EN-GJS series | Shock and impact loading, higher tensile duty |
| Stainless steel 316 | AISI 316 · cast ASTM A743 CF-8M | Corrosion resistance — chemical, marine, pharmaceutical, food processing |
| Stainless steel 410 | AISI 410 · cast ASTM A743 CA-15 | Hardenable martensitic grade — wear and erosion resistance in valves, pumps and slurry duty |
| Other grades | To customer specification | Stated on the enquiry |
Composition is adjusted to your specification and verified in our in-house metallurgy laboratory on a Hitachi spectrometer, with microstructure checked on a metallurgical microscope. A test certificate accompanies every batch on request.
Machining and Finish
We supply rings at three levels of finish. Tell us which you want and we quote accordingly.
| As cast | Straight from the die, parted to length. For customers who machine in-house. |
| Proof machined | Standard on the larger diameters. OD and bore cleaned up on VTL, faces squared, adequate stock left for your finish operation. |
| OD grind | Available on the smaller rings where a close OD tolerance is needed for a press or shrink fit. |
Bore honing and face grinding are available on request.
Why Centrifugal Casting Suits a Ring
| No core, no parting line | The bore is formed by rotation, not by a core. Nothing to machine out, nothing to mismatch. |
| Dense, uniform wall | Metal is thrown against the die at speed. The wall is free of the porosity and blow holes that spoil a finished running surface. |
| Impurities migrate to the bore | Lighter slag and oxides move inward during solidification and are removed in the first boring cut. |
| Thin walls are achievable | 2 mm walls at small diameters are routine here and impractical in sand. |
| Cast long, parted short | Rings are parted from a longer spun tube, so a batch is metallurgically identical piece to piece and the yield is high. |
| Concentric as cast | Less stock to remove, which matters most on the thin-wall sizes. |
How to Order
Send any one of the following and we will come back with a quotation:
- a drawing — PDF, DWG, or a clear photograph of a dimensioned sketch
- a physical sample
- bore, OD, length and material, plus the finish you need
Useful to include: the application, quantity per size, annual requirement, and any tolerance or hardness that matters.
| Minimum order | 100 pieces per size |
| Lead time | 30 to 45 days from order confirmation |
| Domestic terms | Ex-works Ahmedabad, GST 18% |
| Export terms | Ex-works, FOB Nhava Sheva or CPT destination · USD · LC at sight or 50% TT advance |
| Brands | JAI NO 1 (India & Asia) · MDT (rest of world) |
Frequently Asked Questions
Is a cylinder ring the same as a piston ring?
No. A piston ring is a split, sprung sealing ring that sits in a piston groove. The rings on this page are solid, unsplit cylindrical components used as hub rings, wear rings, bearing blanks and spacers. We do not manufacture piston rings.
What is the smallest ring you can make?
Current production runs down to 34 mm bore with a 2.0 mm wall. Smaller is possible depending on wall thickness and quantity — send the drawing and we will tell you.
Can you match an existing ring if I have no drawing?
Yes. Send a sample. We measure it, confirm the material by spectrometer, and quote against that.
Do you supply rings finished, or only as castings?
Both. As cast, proof machined, or OD grind. State what you need on the enquiry.
Which material should I choose?
Grey cast iron for wear and damping. SG iron where the ring sees shock or impact. Stainless 316 where corrosion is the problem, 410 where hardness and erosion resistance matter. If you are unsure, tell us the application and we will advise.
Do you supply a test certificate?
Yes, on request — chemical composition and mechanical properties from our in-house laboratory.
What is your minimum order quantity?
100 pieces per size.
Related Pages
- Centrifugal Casting
- Cylinder Liners
- Stainless Steel Cylinder Sleeves
- Other Products
- Infrastructure
- Quality & Inspection
Contact Us
Interested in sourcing centrifugally cast rings? Get in touch with our team today.
Phone / WhatsApp: +91 93779 67468
Email: info@engineliner.com