Drive Set of 4 Casters for use with Competitor™ Bed (15560)

Why the Caster Set Is the Mobility Boundary and the Stability System of the Drive Competitor™ 15560 Bed Frame Simultaneously

The caster set on a Drive Medical Competitor™ 15560 bed serves two structurally distinct functions that are both essential to the bed frame's clinical and mechanical performance, and that the four-caster assembly must satisfy simultaneously. The first function is controlled mobility: the non-locking casters are the rolling elements that allow the bed to be repositioned or transported across the care environment without requiring the caregiver to lift or drag the frame. A homecare bed frame loaded with a patient generates a floor contact force that a seized or damaged caster cannot overcome without risk of frame instability or caregiver musculoskeletal injury. The non-locking casters are therefore not convenience features — they are the mobility boundary that determines whether the bed can be safely repositioned. A caster that has developed a mechanical failure — through wheel bearing seizure, swivel plate fracture, or wheel deformation — must be replaced before the bed is returned to active use.

The second function the caster set must satisfy simultaneously is positional stability when the bed is stationary. The two locking casters engage a brake mechanism that arrests wheel rotation and swivel plate movement at the designated frame corners, preventing unintended bed movement during patient transfers, care procedures, or caregiver-assisted repositioning. A locking caster whose brake mechanism has failed — through pawl wear, spring fatigue, or pedal linkage fracture — cannot hold the frame stationary under the lateral forces that patient transfer and care activity generate, creating a bed movement hazard at the moment when frame stability is most critical.

The two-locking, two-non-locking configuration of this replacement set is not an arbitrary distribution — it is the stability geometry specified for the 15560 frame. Replacing the full caster set as a matched assembly ensures that the brake force distribution and rolling resistance profile of the frame are restored to the manufacturer-specified geometry simultaneously, rather than introducing variance across individually sourced casters of differing wear states.

The swivel design of each caster in the set allows the bed frame to be steered in any direction from any corner without requiring the frame to be pivoted about a fixed axis. A seized swivel plate at any corner converts that caster from an omnidirectional rolling element to a fixed-axis wheel, requiring the caregiver to lift and pivot the affected corner to change bed direction — a direct injury risk in a homecare or clinical context where the caregiver may be working alone.

KEY FEATURES

• Complete set of 4 OEM replacement casters — two locking and two non-locking, restoring the full mobility and stability configuration of the Drive Competitor™ 15560 frame in a single replacement assembly
• Locking caster brake mechanism — arrests wheel rotation and swivel movement at designated frame corners, providing the positional stability required during patient transfers and care procedures
• Non-locking swivel casters — omnidirectional rolling elements at designated frame corners, allowing controlled bed steering and repositioning without corner lifting
• Durable wheel construction — selected for resistance to the cyclic load and directional change cycles that homecare bed frames accumulate across frequent repositioning and transport events
• Direct fit for Drive Competitor™ 15560 and compatible frames — stem specification matches the caster socket geometry of the 15560 frame rail, ensuring secure mounting without modification

BENEFITS

• Restores both rolling mobility and positional stability simultaneously — a matched four-caster replacement that resets brake force distribution and rolling resistance to the manufacturer-specified geometry
• Locking caster brake function eliminates the bed movement hazard during patient transfers — replacing worn or failed locking casters before the brake function is relied upon under transfer load
• Swivel plate function at all four corners restores omnidirectional steering — eliminating the corner-lifting steering method that a seized swivel plate forces on the caregiver
• Set replacement at component cost extends the bed frame's service life without replacing the frame rail assembly, mattress platform, or drive mechanism
• Matched assembly replacement ensures consistent rolling resistance and brake force distribution across all four corners — avoiding the performance variance that individually sourced casters of differing wear states introduce

TYPICAL APPLICATIONS

✓ Full caster set replacement — replacement of all four casters when inspection confirms bearing wear, wheel deformation, or brake mechanism failure across the caster set, restoring mobility and stability function simultaneously

✓ Locking caster brake failure replacement — immediate replacement when a locking caster's brake mechanism has failed to hold the frame stationary under transfer load, removing the bed movement hazard before the next patient transfer

✓ Non-locking caster seizure replacement — replacement when bearing seizure or swivel plate failure has eliminated rolling or steering function at a non-locking corner, restoring controlled bed repositioning

✓ Scheduled maintenance replacement — caster set inspection and replacement as part of bed frame service intervals in long-term care facilities, confirming wheel, swivel, and brake integrity before the next patient placement

✓ Bed refurbishment and recommissioning — caster set replacement when a Drive Competitor™ 15560 frame is recommissioned after storage or transfer, confirming full mobility and stability function before the frame enters active clinical or homecare use