Ball Bearing Blocks
Ubimaior
Ball bearing blocks for cruising and performance sailboats: single, double, triple, fiddle, stand-up or foot blocks, with or without becket. From Ø 40 to Ø 80 mm, every component is fully machined — no cast or moulded structural parts for maximum strength and longevity.
YC40D
Type: Double ball bearing pulley
Sheave Ø: 40mm
Max. rope Ø: 8mm
Shackle: 5mm
Max. working load: 500Kg
Breaking load: 1000Kg
Length: 72mm
Weight: 100g
YC40M
Type: Stand-up ball bearing pulley
Sheave Ø: 40mm
Max. rope Ø: 8mm
Shackle: 5mm
Max. working load: 500Kg
Breaking load: 1000Kg
Length: 78mm
Weight: 60g
YC40S
Type: Single ball bearing pulley
Sheave Ø: 40mm
Max. rope Ø: 8mm
Shackle: 5mm
Max. working load: 500Kg
Breaking load: 1000Kg
Length: 72mm
Weight: 60g
YC40SA
Type: Single ball bearing pulley with becket
Sheave Ø: 40mm
Max. rope Ø: 8mm
Shackle: 5mm
Max. working load: 500Kg
Breaking load: 1000Kg
Length: 92mm
Weight: 70g
YC50D
Type: Double ball bearing pulley
Sheave Ø: 50mm
Max. rope Ø: 10mm
Shackle: 6mm
Max. working load: 750Kg
Breaking load: 1500Kg
Length: 95mm
Weight: 170g
YC50DA
Type: Double ball bearing pulley with becket
Sheave Ø: 50mm
Max. rope Ø: 10mm
Shackle: 6mm
Max. working load: 750Kg
Breaking load: 1500Kg
Length: 118mm
Weight: 192g
YC50M
Type: Stand-up ball bearing pulley
Sheave Ø: 50mm
Max. rope Ø: 10mm
Shackle: 6mm
Max. working load: 750Kg
Breaking load: 1500Kg
Length: 98mm
Weight: 105g
YC50R
Type: Ball bearing foot pulley
Sheave Ø: 50mm
Max. rope Ø: 10mm
Max. working load: 750Kg
Breaking load: 1500Kg
Length: 75mm
Weight: 80g
YC50S
Type: Single ball bearing pulley
Sheave Ø: 50mm
Max. rope Ø: 10mm
Shackle: 6mm
Max. working load: 750Kg
Breaking load: 1500Kg
Length: 95mm
Weight: 105g
YC50SA
Type: Single ball bearing pulley with becket
Sheave Ø: 50mm
Max. rope Ø: 10mm
Shackle: 6mm
Max. working load: 750Kg
Breaking load: 1500Kg
Length: 118mm
Weight: 116g
YC50T
Type: Triple ball bearing pulley
Sheave Ø: 50mm
Max. rope Ø: 10mm
Shackle: 6mm
Max. working load: 750Kg
Breaking load: 1500Kg
Length: 95mm
Weight: 230g
YC50TAC
Type: Triple ball bearing pulley with becket
Sheave Ø: 50mm
Max. rope Ø: 10mm
Shackle: 6mm
Max. working load: 750Kg
Breaking load: 1500Kg
Length: 118mm
Weight: 249g
YC50TAL
Type: Triple ball bearing pulley with becket
Sheave Ø: 50mm
Max. rope Ø: 10mm
Shackle: 6mm
Max. working load: 750Kg
Breaking load: 1500Kg
Length: 118mm
Weight: 249g
YC50V
Type: Violin ball bearing pulley
Sheave Ø: 50mm
Max. rope Ø: 10mm
Shackle: 6mm
Max. working load: 750Kg
Breaking load: 1500Kg
Length: 135mm
Weight: 140g
YC50VA
Type: Violin ball bearing pulley with becket
Sheave Ø: 50mm
Max. rope Ø: 10mm
Shackle: 6mm
Max. working load: 750Kg
Breaking load: 1500Kg
Length: 157mm
Weight: 150g
YC60D
Type: Double ball bearing pulley
Sheave Ø: 60mm
Max. rope Ø: 12mm
Shackle: 8mm
Max. working load: 1250Kg
Breaking load: 2500Kg
Length: 112mm
Weight: 275g
YC60DA
Type: Double ball bearing pulley with becket
Sheave Ø: 60mm
Max. rope Ø: 12mm
Shackle: 8mm
Max. working load: 1250Kg
Breaking load: 2500Kg
Length: 140mm
Weight: 300g
YC60M
Type: Stand-up ball bearing pulley
Sheave Ø: 60mm
Max. rope Ø: 12mm
Shackle: 8mm
Max. working load: 1250Kg
Breaking load: 2500Kg
Length: 118mm
Weight: 170g
YC60R
Type: Ball bearing foot pulley
Sheave Ø: 60mm
Max. rope Ø: 12mm
Max. working load: 1250Kg
Breaking load: 2500Kg
Length: 90mm
Weight: 120g
YC60S
Type: Single ball bearing pulley
Sheave Ø: 60mm
Max. rope Ø: 12mm
Shackle: 8mm
Max. working load: 1250Kg
Breaking load: 2500Kg
Length: 112mm
Weight: 170g
YC60SA
Type: Single ball bearing pulley with becket
Sheave Ø: 60mm
Max. rope Ø: 12mm
Shackle: 8mm
Max. working load: 1250Kg
Breaking load: 2500Kg
Length: 140mm
Weight: 200g
YC60T
Type: Triple ball bearing pulley
Sheave Ø: 60mm
Max. rope Ø: 12mm
Shackle: 8mm
Max. working load: 1250Kg
Breaking load: 2500Kg
Length: 112mm
Weight: 375g
YC60TAC
Type: Triple ball bearing pulley with becket
Sheave Ø: 60mm
Max. rope Ø: 12mm
Shackle: 8mm
Max. working load: 1250Kg
Breaking load: 2500Kg
Length: 140mm
Weight: 405g
YC60TAL
Type: Triple ball bearing pulley with becket
Sheave Ø: 60mm
Max. rope Ø: 12mm
Shackle: 8mm
Max. working load: 1250Kg
Breaking load: 2500Kg
Length: 140mm
Weight: 405g
YC60V
Type: Violin ball bearing pulley
Sheave Ø: 60mm
Max. rope Ø: 12mm
Shackle: 8mm
Max. working load: 1250Kg
Breaking load: 2500Kg
Length: 160mm
Weight: 230g
YC60VA
Type: Violin ball bearing pulley with becket
Sheave Ø: 60mm
Max. rope Ø: 12mm
Shackle: 8mm
Max. working load: 1250Kg
Breaking load: 2500Kg
Length: 187mm
Weight: 250g
YC80D
Type: Double ball bearing pulley
Sheave Ø: 80mm
Max. rope Ø: 16mm
Shackle: 10mm
Max. working load: 1800Kg
Breaking load: 3600Kg
Length: 145mm
Weight: 605g
YC80M
Type: Stand-up ball bearing pulley
Sheave Ø: 80mm
Max. rope Ø: 16mm
Shackle: 10mm
Max. working load: 1800Kg
Breaking load: 3600Kg
Length: 145mm
Weight: 375g
YC80R
Type: Ball bearing foot pulley
Sheave Ø: 80mm
Max. rope Ø: 16mm
Max. working load: 1800Kg
Breaking load: 3600Kg
Length: 120mm
Weight: 295g
YC80S
Type: Single ball bearing pulley
Sheave Ø: 80mm
Max. rope Ø: 16mm
Shackle: 10mm
Max. working load: 1800Kg
Breaking load: 3600Kg
Length: 145mm
Weight: 375g
YC80SA
Type: Single ball bearing pulley with becket
Sheave Ø: 80mm
Max. rope Ø: 16mm
Shackle: 10mm
Max. working load: 1800Kg
Breaking load: 3600Kg
Length: 178mm
Weight: 425g
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Nautex International, distributor of marine equipment for over 15 years: Carbonautica, Forespar, Starfurl, Tides Marine, ATN, Ubi Maior and more for equipping your sailboat.