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Barton Marine Size 3 45mm Plain Bearing Pulley Block Single With Fixed Eye MPN-N03110 SKU: CWR-106549
MPN: N03110- $19.88
$18.07- $19.88
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- $19.88
$18.07- $19.88
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Barton Marine Size 0 20mm Plain Bearing Pulley Block Double Fixed Eye MPN-N00210 SKU: CWR-106548
MPN: N00210- $24.31
$22.10- $24.31
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- $24.31
$22.10- $24.31
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Barton Marine Size 0 20mm Plain Bearing Pulley Block Single Swivel w/o Shackle MPN-N00190 SKU: CWR-106546
MPN: N00190- $15.64
$14.22- $15.64
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- $15.64
$14.22- $15.64
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Barton Marine Size 0 20mm Plain Bearing Pulley Block Single Swivel & Becket MPN-N00191 SKU: CWR-106547
MPN: N00191- $17.36
$15.78- $17.36
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- $17.36
$15.78- $17.36
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Barton Marine Size 0 20mm Plain Bearing Pulley Block Stand Up Block MPN-N00170 SKU: CWR-106545
MPN: N00170- $20.45
$18.59- $20.45
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- $20.45
$18.59- $20.45
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Barton Marine Size 0 20mm Plain Bearing Pulley Block Cheek MPN-N00160 SKU: CWR-106544
MPN: N00160- $11.37
$10.34- $11.37
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- $11.37
$10.34- $11.37
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Barton Marine Size 0 20mm Plain Bearing Pulley Block Single Swivel & Becket MPN-N00131 SKU: CWR-106543
MPN: N00131- $30.86
$28.05- $30.86
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- $30.86
$28.05- $30.86
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Barton Marine Size 0 20mm Plain Bearing Pulley Block Single Swivel MPN-N00130 SKU: CWR-106542
MPN: N00130- $28.49
$25.90- $28.49
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- $28.49
$25.90- $28.49
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Barton Marine Size 0 20mm Plain Bearing Pulley Block Single Fixed Eye & Becket MPN-N00111 SKU: CWR-106541
MPN: N00111- $12.20
$11.09- $12.20
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- $12.20
$11.09- $12.20
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Ronstan Series 50 Ball Bearing Block - Single Loop Top MPN-RF50101 SKU: CWR-105700
MPN: RF50101- $62.65
$56.95- $62.65
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- $62.65
$56.95- $62.65
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Harken 40mm Twing Block MPN-2699 SKU: CWR-103566
MPN: 2699- $94.45
$85.86- $94.45
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40mm Twing BlockLow-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy trimming.Features: Opening side plate - Easy to rig and remove from sheet Spring...- $94.45
$85.86- $94.45
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Harken 45mm Aluminum Black Magic Air Block w/Swivel MPN-3391 SKU: CWR-103512
MPN: 3391- $293.59
$266.90- $293.59
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45mm Aluminum Black Magic Air Block with SwivelBlack Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action: mainsheet, runner, halyard, and spinnaker systems. A...- $293.59
$266.90- $293.59
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Harken 40mm Double Sheave Fishing Block MPN-2184 SKU: CWR-103225
MPN: 2184- $84.25
$76.59- $84.25
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40mm Double Sheave Fishing BlockLow-friction Carbo Air blocks are lightweight, strong, and reliable. These compact blocks have very high working loads and smooth operation to simplify the positioning and retrieval of teaser lines. Specifications: Sheave Ø (mm): 40 mm Sheave Ø (in): 1-9/16 in...- $84.25
$76.59- $84.25
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Barton Marine Tuphblox Size 1 Single Block w/Swivel MPN-T01110 SKU: CWR-102859
MPN: T01110- $16.78
$15.25- $16.78
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Tuphblox Size 1 Single Block with SwivelBarton’s Tuphblox range will be manufactured using real OEM Tufnol® for maximum performance. Over time it has been improved as a synthetic resin-bonded fabric construction material to become a mainstay in marine applications alongside industrial applications for its...- $16.78
$15.25- $16.78
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Ronstan Fairlead - Stainless Steel Lined - 14mm (9/16") ID - Black MPN-RF59 SKU: CWR-55293
MPN: RF59- $11.00
$10.00- $11.00
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- $11.00
$10.00- $11.00
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Ronstan Swivel Dead Eye & Cleat Fairlead - 3-12mm (1/8 - 1/2") Rope MPN-RF58 SKU: CWR-55291
MPN: RF58- $109.16
$99.24- $109.16
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- $109.16
$99.24- $109.16
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Ronstan U-Bolt - Stepped - 38mm (1-1/2") Stud MPN-RF559 SKU: CWR-55283
MPN: RF559- $30.20
$27.45- $30.20
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- $30.20
$27.45- $30.20
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Ronstan U-Bolt - Stepped - 51mm (2") Stud MPN-RF544 SKU: CWR-55282
MPN: RF544- $35.23
$32.03- $35.23
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- $35.23
$32.03- $35.23
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Ronstan Front Mounted Cleat Fairlead - Small - Black MPN-RF5405 SKU: CWR-55274
MPN: RF5405- $13.73
$12.48- $13.73
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- $13.73
$12.48- $13.73
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Ronstan Wedge Kit - Small - Black SKU: CWR-55271
- $11.63
$10.57- $11.63
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- Unit price
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- $11.63
$10.57- $11.63
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Frequently Asked Questions
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Repack bearings annually or every 10,000 miles with marine-grade grease to prevent water intrusion and seizing. Check for play or heat after each launch.
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Hubs are sized by axle spindle (1-1/16", 1-3/8", 1-3/4"); match brake type (electric/drum/hydraulic) and bolt pattern (4/5/6 on 4.5-6.5" centers).
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Transom savers, tie-down straps, and fenders protect hulls during towing; LED light kits ensure visibility, while bunks/rollers reduce launch friction.
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Use bow/stern straps rated for 2x boat weight, cross-strap hull sides, and check bunks for even weight distribution to avoid stress cracks.
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Choose 1,200-2,000 lb capacity for tongue weights up to 10% of trailer GVWR; crank or A-frame jacks for easy boat positioning.