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What does the "center groove" profile mean for this screen door roller?

Windows and Door Hardware
Screen Doors
K.D. Screen Door Kits for Sliding Patio Doors
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DK Hardware 2026-09-30 - 17:58:41
Technical Team

The "center groove" profile of the CRL KDEX28R roller wheel is designed to fit precisely onto a raised track or rail. This design helps guide the screen door smoothly and prevents it from derailing.

Product Details

1-3/8" Steel Ball Bearing Center Groove Sliding Screen Door Spring Tension Roller
KDEX28RCRL KDEX28R 1-3/8" Steel Ball Bearing Center Groove Sliding Screen Door Spring Tension Roller
(2)
$2.91/Each

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