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Home >Products >Suspension Units >Semi Bonded Rubber Suspension Units

Semi Bonded Rubber Suspension Units

Our semi bonded rubber suspension unit technology (R-flex semibond) gives the benefits of bonded suspension technology whilst remaining excellent value for money. R-flex semibond technology offers a greater service life than rubber inserts (R-flex insert) because the shaft is fully encased in rubber. Being fully encased, the R-flex semibond unit also offers better water and dirt protection, than the R-flex insert units.

Construction

R-flex semibond technology comprises of a central shaft surrounded by a metal case (which may be galvanised upon request). High density rubber is then bonded to the central shaft and completely fills the space between the metal casing and shaft itself. The unit also includes a support brush at the drop arm end which is inserted into the end of the casing and helps to maintain the position of the shaft and wheel alignment. The rubber filling is engineered to specific load deflection characteristics requested by customers and provide a reliable and predictable suspension solution over a long service life. They provide greater predictability and are capable of dealing with heavier duty uses than our R-flex insert units, yet provide a more affordable solution than our fully bonded units (R-flex fullbond).

Splining

R-flex semibond central shafts and arms can, upon request, all be splined, allowing the level of the arms to be altered for different ride heights whilst providing incredibly strong connections with mounting plates. It also means arms can be replaced without changing the whole unit, further reducing operational costs.

Variations

R-flex semibond systems can be supplied with/without stub and hub (hub can be braked/unbraked using standard, auto-reverse, hydraulic or mechanical brakes)

Standard Semi Bonded Suspension Unit Capacities

Product CodeTypeCapacity
BU6NSANo Stub Axles600kg
BU6SATRStd taper600kg
BU6SAETRExtended taper roller stub axles600kg
BU6U440Unbraked hubs, 4 x 3/8 on 4 PCD600kg
BU6U410Unbraked hubs, 4 x M12 on 100mm PCD600kg
BU6U455Unbraked hubs, 4 x M12 on 5½ PCD600kg
BU6B160A440160 x 35 A/R brakes, 4 x 3/8 on 4 PCD600kg
BU9NSANo Stub Axles900kg
BU9SATRStd taper900kg
BU9SAETRExtended taper roller stub axles900kg
BU9U440Unbraked hubs, 4 x 3/8 on 4 PCD900kg
BU9U410Unbraked hubs, 4 x M12 on 100mm PCD900kg
BU9U455Unbraked hubs, 4 x M12 on 5½ PCD900kg
BU9B160A440160 x 35 A/R brakes, 4 x 3/8 on 4 PCD900kg
BU9B203A455203.2 x 40 A/R brakes, 4 x M12 on 5½ PCD900kg
BU13NSANo Stub Axles1300kg
BU13U455Unbraked hubs, 4 x M12 on 5½ PCD1300kg
BU13B203A455203.2 x 40 A/R brakes, 4 x M12 on 5½ PCD1300kg
BU13B203A560203.2 x 40 A/R brakes, 5 x M12 on 6 PCD1300kg
BU13B203A565203.2 x 40 A/R brakes, 5 x M16 on 6½ PCD1300kg
BU18NSANo Stub Axles1800kg
BU18U455Unbraked hubs, 4 x M12 on 5½ PCD 10" H/D drum1800kg
BU18U560Unbraked hubs, 5 x M12 on 6 PCD 10" H/D drum1800kg
BU18U565Unbraked hubs, 5 x M16 on 6½ PCD 10" H/D drum1800kg
BU15B200A455200 x 50 A/R brakes, 4 x M12 on 5½ PCD1800kg
BU15B200A560200 x 50 A/R brakes, 5 x M12 on 6 PCD1800kg
BU15B200A5140200 x 50 A/R brakes, 5 x M16 on 140mm PCD to suit 12" wheel rim1800kg
BU15B200A565/56513200 x 50 A/R brakes, 5 x M16 on 6½ PCD to suit 13" wheel rim1800kg
BU18B250A560250 x 40 A/R brakes, 5 x M12 on 6 PCD1800kg
BU18B250A5140250 x 40 /R brakes, 5 x M16 on 140mm PCD to suit 12" wheel rim1800kg
BU18B250A565/56513250 x 40 A/R brakes, 5 x M16 on 6½ PCD to suit 13" wheel rim1800kg

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