Short Description
The Enduro Bearings ACB 4545 150 SS Angular Contact Headset Bearing is engineered for smooth, reliable steering performance and exceptional durability. Manufactured from premium 440C stainless steel with angular contact technology, it delivers superior corrosion resistance, even load distribution and extended service life for road, mountain, gravel and e-bike applications.
Key Features
- 440C Stainless Steel Construction: Premium stainless steel balls and races provide outstanding corrosion resistance and long-lasting performance.
- Angular Contact Design: Evenly distributes loads across all bearing balls, reducing wear and increasing bearing life.
- Superior Sealing: Dual-lip LLB seals help keep out water, dirt and contaminants while retaining grease.
- Waterproof Grease: Filled with high-pressure waterproof grease for dependable performance in wet riding conditions.
- Precision Engineered: Manufactured to ABEC 3 tolerances with Grade 10 bearing balls for smooth and accurate steering performance.
Product Overview
The Enduro Bearings ACB 4545 150 SS is a premium angular contact headset bearing designed for riders who demand smooth steering, reliability and long-term durability. Featuring hardened 440C stainless steel balls and races, this bearing offers exceptional protection against corrosion caused by rain, sweat, mud and regular bike washing. Unlike conventional radial bearings, the angular contact design engages every ball bearing under load, distributing forces evenly to reduce friction and significantly extend service life. Combined with dual-lip labyrinth seals and high-pressure waterproof grease, this headset bearing delivers outstanding performance for road bikes, mountain bikes, gravel bikes and e-bikes ridden in demanding conditions.
Specifications
- Brand: Enduro Bearings
- Model: ACB 4545 150 SS
- Product Type: Angular Contact Headset Bearing
- Bearing Material: 440C Stainless Steel
- Bearing Type: Angular Contact (ACB)
- Inner Diameter: 40 mm
- Outer Diameter: 52 mm
- Width: 7 mm
- Contact Angle: 45° × 45°
- Bearing Grade: ABEC 3
- Ball Grade: Grade 10
- Seals: Dual-lip LLB seals
- Grease: High-pressure waterproof grease
- Static Load Rating: 4.34 kN (977 lbf)
- Weight: Approx. 24 g
- Application: Bicycle headsets
- Alternative Part Numbers: HSS011, BAA0695K, TH-070, MR-128, MH-P16
Ideal For
- Road bikes
- Mountain bikes
- Gravel bikes
- E-bikes
- Replacing worn or corroded headset bearings
- Riders who frequently ride in wet or harsh conditions
What’s Included
- 1 × Enduro Bearings ACB 4545 150 SS Angular Contact Headset Bearing
Care & Notes
Always confirm your headset bearing dimensions (40 × 52 × 7 mm, 45° × 45°) before ordering. Install with the bearing correctly orientated according to your headset manufacturer's instructions. Inspect bearings regularly and replace if excessive wear or play develops.
Why Buy From LK Bikes
LK Bikes stocks premium Enduro Bearings components trusted by professional mechanics and riders alike. Enjoy genuine products, expert advice, fast dispatch and dependable aftersales support for all your cycling maintenance needs.
