NB Reverse-Seal is a seal unit that consists of reverse plate, seal, and cover.
This seal unit has another side-seal in the reverse orientation to the block.
Part Number Structure
It is available for sizes 15~25 of standard SGL types. Block total length is shown in the table below.
Please refer to NB general catalog for other dimensions.
↓It expands by click.
●The space between two seals holds grease to minimize grease leakage from the block.
grease-leak test data:
test conditions : vertical axis, applied load (no load), average speed (60m/min), stroke (375mm)
●Reverse-seal makes a "Grease Pocket" between the two seals that realizes MAINTENANCE FREE by reducing grease leakage and loss.
grease dry-up test data:
test conditions: applied load (no load), average speed (60m/min), stroke (420mm)
* A few grams of oil absorbing material was applied every 5 minutes.
●Grease for the food processing industry (NSF H1 certified) is available. It is a perfect combination for
the food processing applications to use stainless steel guide SGLS type and reverse-seal option.
Please contact NB for more details.