LRBD Locating Rings - Counterbore, 2-Bolt Holes

This counterbore locating ring is used inside injection mold bases and locating systems to maintain repeatable part-to-part alignment during assembly and press operation. The 2-bolt holes are intended for a bolt stopper type interface, which helps resist micro-movements that can lead to mismatch in gate and sprue regions.

In automotive connector and cable-housing molds, the ring’s counterbore seats the hardware consistently, supporting stable alignment of mating mold halves when tightening bolts through the 2-hole pattern. In precision consumer electronics enclosure molds, where thin-walled inserts and tight shut-offs demand consistent positioning, the available heights (15–45 mm) allow designers to match required stack-up and clearance.

• Counterbore promotes accurate seating and repeatable alignment
• 2-bolt stopper interface reduces positional shift under clamping loads
• Multiple height options support tooling stack-up requirements

The provided specifications for this LRBD locating ring define functional geometry (outer diameter D and height T) but do not state the steel grade, heat treatment, or hardness. Therefore, material hardness (HRC), wear resistance, and toughness trade-offs cannot be confirmed from the available data.

When sourcing locating hardware for injection tooling, engineers typically select steels based on expected clamp load cycles and alignment-critical wear characteristics (e.g., resisting fretting around bolt-stopper interfaces). If you need a specific grade (such as a nitriding-ready alloy) or a specified hardness range, request the material and heat-treatment certificate associated with series 110200080250.

• Material/heat treatment details not provided in current spec set
• Confirm hardness and surface treatment requirements before qualification
• Validate fit and wear behavior at the bolt-stopper contact surfaces

Selection is driven by matching the locating ring outer diameter D and the mounting stack height T to the mold base and locating system geometry. This series is available with D = 100 or 120 mm and T = 15, 20, 35, 40, or 45 mm.

To size the ring, first determine the required seating diameter and clearance envelope in the mold base. Choose D so the counterbore lands within the intended seat location without interfering with adjacent features (ejector pockets, gate components, or bolt/stopper elements). Next, set T to match the required height for proper engagement of the bolt stopper interface after assembly.

• Match D (100/120 mm) to the counterbore seat zone
• Match T (15–45 mm) to your tooling stack-up
• Use the 2-bolt hole pattern consistently with the bolt stopper location hardware

Tolerance/fit note: the current data does not provide numeric tolerance values for D, T, or hole features—verify drawing tolerances during final design freeze.