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Pillow Block Bearings Make The Cut
A leading manufacturer of lawnmowers for out in the field, on the golf course or in the garden is recognised for commercial mowers as the industry standard. On the latest model the rigours of critical bearings and misalignment issues raised serious durability problems which called for Spyraflo to solve.
The company's Z-two zero turn radius, ride-on, mid-mount mower is amongst the fastest, strongest and most manoeuvrable available in the market today.For such a machine the exacting performance required of the mechanics calls for a robust but flexible solution.
Many bearings were evaluated by the design engineers at which included low-cost pressed steel bronze pillow blocks and assorted rolling element bearing housings.
The design team finally selected the Spyraflo pillow block; self-aligning bearing that could stand up to the rigours of being mounted on the steel fabricated cutting deck/chassis of the mower.At the same time they had to carry the load, including shock load and facilitate easy raising and lowering of the cut platform.
Spyraflo worked closely with the engineers to produce a custom yellow zinc plated steel version of the standard Spyraflo PB-625-B aluminium pillow block, which completely met the stringent specification requirements.
The results have been outstanding with trouble free mowers being a great marketing and user success, so much so that Spyraflo now supplies these bearings across a range of mowers with cut widths ranging from 120 to 180mm.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| D15 bearing | 34.925 | 62.713 | 15.875 |
| D14 bearing | 33.338 | 59.538 | 15.875 |