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SKU:- ZST33118STM | Part Number:- 33118STM
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$108.83
Regular price
The STEMCO Inner Bearing Suit BPW 33118STM is a heavy-duty tapered roller bearing engineered for BPW trailer axle applications. Built to match the X33118/Y33118 bearing combination, it is specified for BPW Transpec 10–12 tonne New Generation, ECO, ECO+ and ECO+3 hubs, providing reliable support for high-capacity commercial trailer wheel ends. This metric bearing features a 90 mm internal diameter, 150 mm external diameter and 45 mm overall width, making it directly interchangeable with standard 33118 taper roller bearing dimensions used across many BPW hub designs. Manufactured as part of STEMCO’s matched bearing program, 33118STM is supplied as a precision bearing component that meets or exceeds ABMA life specifications when installed and maintained correctly. Commonly paired with outer bearing 33213STM in BPW ECO-style hubs, it is suited to demanding long-haul and fleet operations where consistent bearing performance is critical. The bearing is also referenced in STEMCO’s Spacer-Tech and wheel-end service documentation for BPW trailer axle configurations.
- - Inner Diameter: 90 mm
- - Outer Diameter: 150 mm
- - Width: 45 mm
- - Bearing Type: Tapered roller bearing
- - Bearing Reference: 33118
- - Application: BPW Transpec 10�12T New Gen / ECO / ECO+ / ECO+3 trailer hubs
- - Inner/Outer Combination: X33118 / Y33118 - Suits BPW 10�12T New Generation, ECO, ECO+, ECO+3 trailer axles as the inner bearing set - Matched X33118/Y33118 taper roller bearing set for consistent load sharing across cup and cone - Metric dimensions 90mm ID x 150mm OD x 45mm width for correct BPW hub fitment - Manufactured by STEMCO using heavy-duty bearing steel for durability in commercial trucking - Used in conjunction with STEMCO 33213STM outer bearing on BPW ECO hub assemblies - Supports high axle loads typical of highway and linehaul trailer operations - Helps maintain correct wheel-end alignment and smooth hub rotation under load - Compatible with oil or semi-fluid grease lubricated BPW wheel ends when installed to BPW specs - Refer to BPW or STEMCO wheel-end procedures for bearing packing, hub adjustment and torque settings - Replace in pairs on the axle position and inspect cups, cones and seals during service
