DHR-K Double-Groove Door Synchronizing Pulley
A double-groove pulley for elevator door synchronizing rope arrangements. The brown wheel is assembled around a metal bearing and hollow central hub, with two circumferential grooves for the paired rope paths.
Outline Dimensions
Illustrative outline. Dimensions in mm: wheel outside diameter 52; wheel-body width 16, excluding the projecting hub. Bearing designation: 6003. Confirm the actual shaft and hub fit before installation.
Related Model and Configuration Comparison
Select by the exact model and configuration. The 52 mm diameter and 16 mm width above describe DHR-K and must not be transferred to the other models below.
Before Ordering
- Compare the 52 mm wheel diameter, 16 mm wheel-body width and two-groove arrangement.
- Confirm the complete hub, shaft fit, bearing and rope alignment for the door mechanism.
- Inspect both rope grooves for uneven wear and check bearing rotation before installation.
- Match related models by their individual configuration rather than by family appearance.
Frequently Asked Questions
How many rope grooves does the wheel have?
DHR-K has two circumferential grooves for a paired synchronizing rope arrangement.
Does the 16 mm dimension include the projecting hub?
No. It describes the wheel-body width; confirm the full hub projection and mounting fit separately.
Which bearing designation applies?
The DHR-K configuration uses the 6003 bearing designation. Confirm the complete hub and shaft fit for replacement.
Are the related models dimensionally identical?
No. Use each model configuration separately; the DHR-K dimensions do not apply automatically to DWRW-K, SDL-V30 or SDV-V30.
