How an adapter ring is defined<\/h2>\n\n\n\n![\"Section](\"https:\/\/nolle.engineering\/wp-content\/uploads\/2026\/08\/IceConeFeed_Adapter_Section_View.png\")
Section B–B: the outer diameter is fixed at 61 mm (the base-plate hole); the inner diameter (here 55 mm) matches the LNB neck; the width (here 16 mm) is the clamping length. This is a 55×16 ring.<\/figcaption><\/figure>\n\n\n\nAn adapter ring always has a 61 mm outer diameter<\/strong> — it matches the base-plate hole. What changes from ring to ring is the inner bore and the width:<\/p>\n\n\n\n- Inner diameter<\/strong> = your LNB’s neck diameter. Pick the ring whose inner Ø matches your measured neck.<\/li>
- Width<\/strong> = the clamping length along the neck. Wider rings (16 mm) grip more; the diameter class is the same.<\/li><\/ul>\n\n\n
You do not need a perfect match.<\/strong> The clamp accommodates about 0.5 mm either way, so a ring whose inner diameter is within roughly half a millimetre of your measured neck — larger or smaller — holds fine. If your LNB falls between two sizes, pick the nearer one.<\/p>\n\n\nRing type<\/th> Parameters<\/th> Size code<\/th> Use<\/th><\/tr><\/thead> Cylindrical<\/td> inner Ø, width<\/td> 55x10<\/code> = 55 mm inner × 10 mm wide<\/td>Straight (non-stepped) LNB neck<\/td><\/tr> Conical \/ stepped<\/td> front Ø, rear Ø, width<\/td> 53\/57x16<\/code> = 53 mm front × 57 mm rear × 16 mm wide<\/td>LNB neck that steps or tapers<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\nHow to measure your LNB<\/h2>\n\n\n\n![\"A](\"https:\/\/nolle.engineering\/wp-content\/uploads\/2026\/08\/measure_caliper.jpg\")
Measuring the front neck of a DX-Patrol LNB with a caliper — about 53 mm.<\/figcaption><\/figure>\n\n\n\n- Remove any collar or spacer ring first.<\/strong> Some LNBs ship with a removable outer ring (for example DX-Patrol’s grey collar). Measure the bare neck, not over the collar — measuring over it reads a couple of millimetres too large and sends you to the wrong ring.<\/li>
- Measure with a caliper where the feed clamps<\/strong> — the front of the neck, not the wider body behind it.<\/li>
- Check for a step or taper.<\/strong> If the front and a point further back read different diameters, the neck is stepped, and you need a conical ring (note both numbers).<\/li>
- Match your reading to the table below.<\/li><\/ol>\n\n\n\n
Self-check:<\/strong> if a ring goes on but will not clamp even fully tightened \/ feels too thin, its inner diameter is too big — go one size smaller.<\/p>\n\n\n\nLNB compatibility table<\/h2>\n\n\n\n
Production runs vary, so when in doubt, measure. The diameters below are our catalogue fit data; the two marked ∗ are confirmed by customer measurement.<\/p>\n\n\n\n
An adapter ring always has a 61 mm outer diameter<\/strong> — it matches the base-plate hole. What changes from ring to ring is the inner bore and the width:<\/p>\n\n\n\n You do not need a perfect match.<\/strong> The clamp accommodates about 0.5 mm either way, so a ring whose inner diameter is within roughly half a millimetre of your measured neck — larger or smaller — holds fine. If your LNB falls between two sizes, pick the nearer one.<\/p>\n\n\n Self-check:<\/strong> if a ring goes on but will not clamp even fully tightened \/ feels too thin, its inner diameter is too big — go one size smaller.<\/p>\n\n\n\n Production runs vary, so when in doubt, measure. The diameters below are our catalogue fit data; the two marked ∗ are confirmed by customer measurement.<\/p>\n\n\n\nRing type<\/th> Parameters<\/th> Size code<\/th> Use<\/th><\/tr><\/thead> Cylindrical<\/td> inner Ø, width<\/td> 55x10<\/code> = 55 mm inner × 10 mm wide<\/td>Straight (non-stepped) LNB neck<\/td><\/tr> Conical \/ stepped<\/td> front Ø, rear Ø, width<\/td> 53\/57x16<\/code> = 53 mm front × 57 mm rear × 16 mm wide<\/td>LNB neck that steps or tapers<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n How to measure your LNB<\/h2>\n\n\n\n
LNB compatibility table<\/h2>\n\n\n\n