If you have the old ones that came off. You can take them to the bearing market and buy brand new ntn or skf.
As for the tensioner, the dealerships sometimes try to sell you the entire tensioner assy. Instead of the bearing alone.
But they do have the bearing also and thats all you need. So specifically askfor timing bearing. It will be in honda packet but ntn or nsk brand.
Please keep all old bearings with you. I need some info from them. Then i will be able to find hi quality replacements at lower price.
Also.
You may find some synthetic ball bearing grease like mobil xhp and replace the original grease with that. The bearing will go for alot longer with waterproof synthetic grease. Water is number one bearing killer