Page 412 - Brewers Catalogue 2024

Curved Base Cheek Blocks
Unique curved base fits up to 2” dia. spar section for easy mounting.
Excellent for control line leads on dinghies and small daysailors.

Item Ball Sheave
Item SS Item Alum. Max line L W H Fasteners C/C SWL
Bearing Dia.
(4)
30-04 -- -- 1-1/16” 5/16” 3-1/2” 1” 21/32” 3” 900lbs
#10 RH
(4)
03-30 303-30 300-30 1-7/16” 1/2” 3-11/16” 1” 3/4” 3-3/16” 1000lbs
#10 RH
Flat Base Cheek Blocks

Flat, stainless base plate distributes loads to a larger surface area than other
designs that place loads on mounting bolts only. Use on spars and deck to lead
sheets, halyards, reefing gear, and any control requiring a strong, clean lead.

Item Item Ball Sheave
Item SS Sheave Max Line L W H Fasteners C/C SWL
Alum. Bearing Dia.
Delrin (4)
30-27 303-09 300-09 1-7/16” 1/2” 2-7/8” 1-3/4” 3/4” 2-3/8” 1000lbs
#10 RH
(4)
-- 303-29 -- Delrin 1-7/16” 1/2” 2-7/8” 1-3/4” 1-7/16” 2-3/8” 1000lbs
#10 RH
(4)
505-11 504-11 506-11 Delrin 2” 1/2” 3-5/8” 2-7/32” 7/8” 3” 1750lbs
#10 RH
(4)
505-10 504-10 -- Aluminum 2” 1/2” 3-5/8” 2-7/32” 7/8” 3” 1750lbs
#10 RH
Double/ (4)
505-28 504-28 -- 2” 1/2” 3-5/8” 2-7/32” 1-19/32” 3” 1750lbs
Delrin #10 RH
(4)
705-11 704-11 706-11 Delrin 2-3/8” 5/8” 4-3/8” 2-3/4” 1” 3-5/8” 2250lbs
1/4” RH
(4)
705-10 704-10 -- Aluminum 2-3/8” 5/8” 4-3/8” 2-3/4” 1” 3-5/8” 2250lbs
1/4” RH
Double/ (4)
705-28 704-28 -- 2-3/8” 5/8” 4-3/8” 2-3/4” 1-29/32” 3-5/8” 2250lbs
Delrin 1/4” RH
SWL for 506-11:1500lbs, 706-11: 1700lbs
SWL for top sheave of double version 303-29:200lbs, 504-28-505-8:350lbs, and 704-28/705-28: 500lbs
Cheek Block Pad
Shaped to fit most common spar sections, these convenient pads allow
quick and easy mounting on masts or booms. Made of Schaefer Tuflite,
a Urethane with the ability to withstand extreme compression loads and
temperature ranges without distortion.

Item Description Size

55-60 For use with 5 Series fits 2-1/2” - 6” diameter spar sections
55-61 For use with 7 Series fits 3” -7” diameter spar sections

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