ACB 3645 3748 BO - 1 3/8" Black-Oxide, Angular-Contact Headset Bearing - 37 x 48 x 6.5mm (36 x 45 deg)
The angular-contact headset bearing showcases anti-corrosion Black Oxide/Magnetite-coated 52100 High-Carbon Chromium alloy races paired with grade 10 Balls, delivering enhanced corrosion resistance and prolonged performance.
Recognized in the bike industry as part number Ai-70, this bearing size is well-known.
The Enduro series of angular-contact headset bearings begins with Chromium steel races treated with Black Oxide, progresses to full 440C stainless steel, and culminates in the top-tier XD-15 aerospace-stainless (both races and balls), backed by a lifetime guarantee. These bearings are consistently designed with the largest feasible balls, incorporate dual-lip seals moving within micro-grooves (labyrinth), and are filled to 90% capacity with high-pressure waterproof grease, ensuring optimal protection against sweat and environmental elements. The Enduro Angular Contact (A/C) bearings are crafted to ensure uniform engagement of all balls, distributing force across a larger surface area, thus reducing friction, minimizing wear, and extending the bearing's lifespan.
All orders, excluding bikes, are dispatched within 24 business hours from our Darra Warehouse. Bikes will be dispatched within approximately 4-5 working days.
Usually Delivery times will vary from 2-5 business days for metro areas and 7-14 business days for rural and remote areas.
As we approach what is traditionally a busy and peak period, we’d like to remind all our customers that this year will see unprecedented volumes travelling through the Post and Courier networks.
Crooze offers the best prices on a massive range of Bikes, scooters and bike products. If you want to send anything back then we can supply a refund as long as the item/s are in 100% sellable condition (i.e; retuned in undamaged packaging, brand new condition). Crooze reserves the right to refuse a refund if the item/s are not in sellable condition.
If you would like to make a return, please fill out our returns form linked below. Once completed, please print it out and pack with your order, and return it to the provided address.
Note: Customers are responsible for all shipping and handling fees for change of mind returns.
Estimated Delivery Time Frame: 1-5 business days