Karver KBO10 / 52 mm Sheave Dia. max line 12 mm / 1/2"
Availability: This item is final sale and not eligible for returns or exchanges.
Shipping and Delivery
Enjoy free shipping on qualifying orders of $145 or more delivered within the 48 contiguous United States. Alaska, Hawaii, Puerto Rico, and other U.S. territories are excluded.
Delivery for qualifying free-shipping orders takes 8 to 10 business days.
Free shipping does not apply to:
- Orders containing only clearance items
- Customized special orders made to your detailed requirements
- Sails and boats
- Long tracks, spinnaker poles, whisker poles, and large tubes
- Oversized or heavy items, including items that require less-than-truckload (LTL) freight shipping
Standard Shipping
- UPS and FedEx Ground: Delivery usually takes 2 to 5 business days for in-stock orders.
- USPS: Allow an additional 3 business days beyond the standard shipping time.
- Saturday delivery: UPS and FedEx deliver on Saturdays only for overnight shipments sent on Friday. Additional charges may apply.
Oversized Items and Freight Shipping
Oversized items, such as whisker poles, spinnaker poles, and tracks longer than 8 feet, require freight shipping. The estimated shipping cost is $500, depending on the destination.
For freight deliveries, provide a commercial address, such as the marina, yacht club, or boatyard where your sailboat is located. The recipient must sign for the shipment upon delivery.
International Orders
International customers are responsible for all applicable import duties, fees, and taxes.
Manufacturer part #: PF660030
| Features | American | Metric |
|---|---|---|
| Description | KBO8 Grey Single Block | |
| Working Load | 2645 lb | 1200 kg |
| Breaking Load | 5291 lb | 2400 kg |
| Weight | 2.80 oz | 83 g |
| Max Line Ø | 15/32 in | 12 mm |
| Sheave Ø | 2 1/16 in | 52 mm |
| Corresponding Rope Shackle | MP551148 | |
| Corresponding Guide | PL662127 | |
Block Safe Working Load: The lashing may hold a higher load.
Manufacturer part #: PF660030
Updated and redeveloped for 2012, the KBO features a sleek design utilizing bearing technology inspired from the KBTi as well as aluminum material from the KBO10 up and composite material from the KBO8 down. The design integrates a lashing guide and allows large line diameters.
Light Weight
The design and material optimization make the block extremely light.
Performance
The KBO block features a two stage bearing system from the KBO8 to enhance low friction.
Fast Attachment
The rope shackle is included with the block for the whole line.
Simplicity
Easy fi tting from the lashing guide and rope shackle attachment simplifi es the use of the KBO block, without bearing away from Karver benefits.
Manufacturer part #: PF660030
| Features | American | Metric |
|---|---|---|
| Description | KBO8 Grey Single Block | |
| Working Load | 2645 lb | 1200 kg |
| Breaking Load | 5291 lb | 2400 kg |
| Weight | 2.80 oz | 83 g |
| Max Line Ø | 15/32 in | 12 mm |
| Sheave Ø | 2 1/16 in | 52 mm |
| Corresponding Rope Shackle | MP551148 | |
| Corresponding Guide | PL662127 | |
Block Safe Working Load: The lashing may hold a higher load.
Manufacturer part #: PF660030
Updated and redeveloped for 2012, the KBO features a sleek design utilizing bearing technology inspired from the KBTi as well as aluminum material from the KBO10 up and composite material from the KBO8 down. The design integrates a lashing guide and allows large line diameters.
Light Weight
The design and material optimization make the block extremely light.
Performance
The KBO block features a two stage bearing system from the KBO8 to enhance low friction.
Fast Attachment
The rope shackle is included with the block for the whole line.
Simplicity
Easy fi tting from the lashing guide and rope shackle attachment simplifi es the use of the KBO block, without bearing away from Karver benefits.

