OEM replacement pillow block bearing for Coleman Mach 6535, 6535A, 6536, 6537, 6538, and 6636 Series under-floor basement air conditioners and heat pumps. Pillow block bearing design — requires periodic oiling.
The Coleman Mach 6536-3011 is the OEM replacement pillow block bearing for the 6535, 6535A, 6536, 6537, 6538, and 6636 Series basement-mounted two-ton packaged air conditioners and heat pumps. These under-floor units route the blower shafts through pillow block bearings mounted to the unit frame. Over time, the original bearings wear, causing audible squealing or grinding — particularly at startup — and eventually leading to increased shaft drag and reduced blower performance.
The 6536-3011 uses a pillow block bearing design that requires periodic oiling to maintain proper lubrication and extend service life. Regular lubrication through the oil ports is an important part of ongoing maintenance for these bearings.
The bearing carrier mounts to the unit frame with two fasteners on 3" center-to-center spacing and accepts a 1/2" shaft. Overall carrier dimensions are 4" L × 1-1/8" W × 2-1/8" H. These basement units typically have both an indoor and an outdoor blower shaft, each supported by a bearing — owners performing a full service often replace all bearings at the same time.
Pillow block bearing design — requires periodic oiling to maintain proper lubrication and service life
4" L × 1-1/8" W × 2-1/8" H carrier with 3" center-to-center mounting holes and 1/2" bore — mounts directly to unit frame
Specific to Coleman Mach 6535/6536/6537/6538/6636 Series under-floor basement packaged AC and heat pump units — not for rooftop models
Backed by a 2-year limited manufacturer's warranty
The 6536-3011 is specific to Coleman Mach 6535, 6535A, 6536, 6537, 6538, and 6636 Series under-floor basement packaged air conditioners and heat pumps. These units mount below the coach floor rather than on the roof and use long blower shafts that require pillow block bearing support. This part is not compatible with Coleman Mach rooftop air conditioners or ceiling assembly components.
Coleman Mach 6535/6536/6537/6636 Series basement units typically have two blower shafts — one for the indoor (evaporator) blower and one for the outdoor (condenser) blower — each supported by a pillow block bearing. When performing bearing service, many owners replace all bearings at once while the unit is removed, as access to the bearing locations requires significant disassembly. Disconnect all power before beginning any service work.
The 6536-3011 is compatible with the Coleman Mach 6535–6636 Series basement-mounted packaged air conditioners and heat pumps listed below.