Brand New, Medium Duty,  Flange & Precision Bearing Inside, Cap Included. Pre-filled with Chevron Grease. 
It is a Medium Duty Type of 68912HD product.  Flange thickness is 0.116".

Inner Diameter: 3/4" / 19.05mm
Outer Diameter: 3.877" / 98.50mm 
Width: 21mm without cap / 22.50mm with cap


You might have interest in or actually need a similar product, please review the following links/items if they fit your application better:

https://www.ebay.com/itm/323840782679    (WIR68912HD, WE-SW-802-076)

https://www.ebay.com/itm/323176378094    (68912HD, Standard Heavy Duty Type)

https://www.ebay.com/itm/323842363545    (BR1690S, Heavy Duty Type, FL-SW-BR1690S )

https://www.ebay.com/itm/323842507007    (68910HD, Heavy Duty Type, 5/8" Bore)



Defective items: 14 business days from date of receipt on items received not as described. All other returns - 30 business days from the date of receipt and all parts must be in their original condition. Parts damaged due to improper installation or abuse are not returnable. Buyer responsible for return shipping and original shipping cost, refund on item subject to a 20% re-stocking fee. Warranty seals may be present, seals are broken, tampered with or removed the warranty is void.