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Selden 20mm Ball Bearing Blocks

Selden 20mm Ball Bearing Blocks

Selden Ball Bearing Blocks are used where loads are more moderate and dynamic. The ball bearings provide a smooth sheave rotation with the least amount of friction possible. Best used in applications like control lines on dinghies and keelboats and leech lines on yachts.

The Technical features on 20mm the Ball Bearing Block include a stainless steel strap to ensure high strength and stiff sides. Stainless Steel ball bearings and glass fibre reinforced sheave for best bearing strength even under high dynamic loads. Composite, 50/50 glass fibre/polyamide.

The Ball Bearing 20mm tie on and cheek block are 50% fiber filled composite cheeks with lightweight acetal ball bearings. and a glassfibre reinforced sheave. The Ball Bearing 20mm tie on can be fitted in three different ways and also ideal for sail applications.

Part # Description Working Load Breaking Load Sheave Diameter Max Line Weight
lbs kg lbs kg in mm in mm oz g
SLD40210101R Ball Bearing Block: Single Strap 20mm 330 150 661 300 0.78 20 0.23 6 0.49 14
SLD40210102R Ball Bearing Block: Single Becket 20mm 330 150 661 300 0.78 20 0.23 6 0.56 16
SLD40210103R Ball Bearing Block: Double 20mm 661 300 1322 600 0.78 20 0.23 6 1.23 35
SLD40210104R Ball Bearing Block: Double Becket 20mm 661 300 1322 600 0.78 20 0.23 6 1.26 36
SLD40210105R Ball Bearing Block: Triple 20mm 661 300 1322 600 0.78 20 0.23 6 1.83 52
SLD40210106R Ball Bearing Block: Triple Becket 20mm 661 300 1322 600 0.78 20 0.23 6 1.90 54
SLD40210107R Ball Bearing Block: Triple Cam 20mm 661 300 1322 600 0.78 20 0.23 6 3.45 98
SLD40210108R Ball Bearing Block: Triple Becket Cam 20mm 661 300 1322 600 0.78 20 0.23 6 3.52 100
SLD40210112R Ball Bearing Block: Single Tie On 20mm 220* 100* 440 200 0.78 20 0.23 6 0.24 7
SLD40210113R Ball Bearing Block: Single Cheek 20mm 220 100 440 200 0.78 20 0.23 6 0.21 6

* Note: the Safe Working Load =50kg, breaking load=100kg when the tie on blocks are fitted.

SLD40210101R 20mm BBB Single Strap Head Price: $12.00 SLD40210102R 20mm BBB Single Strap Head w/ Bec Price: $14.00
SLD40210103R 20mm BBB Double Price: $31.00 SLD40210104R 20mm BBB Double w/ Bec Price: $34.00
SLD40210105R 20mm BBB Triple Price: $44.00 SLD40210106R 20mm BBB Triple w/ Bec Price: $46.00
SLD40210107R 20mm BBB Triple w/ Cam Price: $85.00 SLD40210108R 20mm BBB Triple w/ Cam & Bec Price: $89.00
SLD40210112R 20mm BBB Single Tie On Price: $13.00 SLD40210113R 20mm BBB Cheek Price: $18.00


Selden 25mm High Load Ball Bearing Blocks

Selden 25mm High Load Ball Bearing Blocks

Selden Ball Bearing Blocks are used where loads are more moderate and dynamic. The ball bearings provide a smooth sheave rotation with the least amount of friction possible. The High Load Bearing blocks are best used in applications like dinghy halyards and backstays.

The technical features on 25mm High Load Bearing Blocks include stainless steel sides to ensure high strength and stiffness. One row of stainless steel ball bearings. A ball cage to reduce ball-to-ball friction and weight.

Part # Description Working Load Breaking Load Sheave Diameter Max Line Weight
lbs kg lbs kg in mm in mm oz g
SLD40220105R High Load Ball Bearing Block: Single 25mm 881 400 1763 800 0.98 25 0.19 5 1.05 30
SLD40220106R High Load Ball Bearing Block: Single Pin 25mm 881 400 1763 800 0.98 25 0.19 5 1.12 32
SLD40220107R High Load Ball Bearing Block: Single Becket 25mm 881 400 1763 800 0.98 25 0.19 5 1.19 34
SLD40220108R High Load Ball Bearing Block: Double 25mm 881 400 1763 800 0.98 25 0.19 5 2.04 58
SLD40220109R High Load Ball Bearing Block: Double Becket 25mm 881 400 1763 800 0.98 25 0.19 5 2.18 62
SLD40220110R High Load Ball Bearing Block: Triple 25mm 881 400 1763 800 0.98 25 0.19 5 2.96 84
SLD40220111R High Load Ball Bearing Block: Triple Becket 25mm 881 400 1763 800 0.98 25 0.19 5 3.03 86



SLD40220105R 25mm HL BBB Single Price: $21.00 SLD40220106R 25mm HL BBB Single w/ Pin Head Price: $24.00
SLD40220107R 25mm HL BBB Single w/ Bec & Pin Head Price: $27.00 SLD40220108R 25mm HL BBB Double Price: $31.00
SLD40220109R 25mm HL BBB Double w/ Bec Price: $34.00 SLD40220110R 25mm HL BBB Triple Price: $49.00
SLD40220111R 25mm HL BBB Triple w/ Bec Price: $53.00


Selden 30mm Ball Bearing Blocks

Selden 30mm Ball Bearing Blocks

Selden Ball Bearing Blocks are used where loads are more moderate and dynamic. The ball bearings provide a smooth sheave rotation with the least amount of friction possible. Best used in applications like control lines on dinghies and keelboats and leech lines on yachts.

The Technical features on the 30mm Ball Bearing Blocks include a stainless steel strap to ensure high strength and stiff sides. Stainless Steel ball bearings and glass fibre reinforced sheave for best bearing strength even under high dynamic loads. Composite, 50/50 glass fibre/polyamide. Acetal bearing cage to prevent ball-to ball friction and to reduce weight. The center hole can be used as a becket.

Part # Description Working Load Breaking Load Sheave Diameter Max Line Weight Shackle
lbs kg lbs kg in mm in mm oz g in mm
SLD40310101R Ball Bearing Block: Single Swivel 30mm 440 200 881 400 1.18 30 0.31 8 1.16 33 0.15 4
SLD40310102R Ball Bearing Block: Single Strap Head 30mm 440 200 881 400 1.18 30 0.31 8 0.84 24 -- --
SLD40310103R Ball Bearing Block: Single Swivel Becket 30mm 440 200 881 400 1.18 30 0.31 8 1.23 35 0.15 4
SLD40310104R Ball Bearing Block: Double Loop Head 30mm 881 400 1763 800 1.18 30 0.31 8 1.72 49 -- --
SLD40310105R Ball Bearing Block: Double Loop Head Becket 30mm 881 400 1763 800 1.18 30 0.31 8 1.83 52 -- --
SLD40310106R Ball Bearing Block: Triple Loop Head 30mm 1322 600 2645 1200 1.18 30 0.31 8 2.71 77 -- --
SLD40310107R Ball Bearing Block: Triple Loop Head Becket Cam 30mm 1190 540 2380 1080 1.18 30 0.27 7 4.58 130 -- --
SLD40310108R Ball Bearing Block: Single Tie On 30mm 440 200 881 400 1.18 30 0.31 8 0.74 21 -- --
SLD40310109R Ball Bearing Block: Single Cheek 30mm 440 200 881 400 1.18 30 0.31 8 0.77 22 not included --
SLD40310110R Ball Bearing Block: Triple Becket 30mm 1322 600 2645 1200 1.18 30 0.31 8 2.64 79 -- --
SLD40310111R Ball Bearing Block: Triple Cam 30mm 992 450 1984 900 1.18 30 0.27 7 4.44 126 -- --
SLD40310112R Ball Bearing Block: Single Stand Up 30mm 440 200 881 400 1.18 30 0.31 8 1.05 30 -- not included
SLD40310113R Ball Bearing Block: Single Becket Strap 30mm 440 200 881 400 1.18 30 0.31 8 1.02 29 -- --
SLD40310114R Ball Bearing Block: Clew block 30mm 440 200 881 400 1.18 30 0.31 8 2.39 68 -- Ring Ø35x5


SLD40310101R 30mm BBB Single w/ Swivel Price: $24.00 SLD40310102R 30mm BBB Single Strap Head Price: $14.00
SLD40310103R 30mm BBB Single Swivel w/ Bec Price: $27.00 SLD40310104R 30mm BBB Double Price: $38.00
SLD40310105R 30mm BBB Double w/ Bec Price: $42.00 SLD40310106R 30mm BBB Triple Price: $57.00
SLD40310107R 30mm BBB Triple w/ Cam & Bec Price: $94.00 SLD40310108R 30mm BBB Single Tie On Price: $17.00
SLD40310109R 30mm BBB Cheek Price: $13.00 SLD40310110R 30mm BBB Triple w/ Bec Price: $57.00
SLD40310111R 30mm BBB Triple w/ Cam Price: $92.00 SLD40310112R 30mm BBB Single Stand Up Price: $26.00
SLD40310113R 30mm BBB Single Strap Head w/ Bec Price: $21.00 SLD40310114R 30mm BBB Clew Block Price: $28.00


Selden 40mm Ball Bearing Block

Selden 40mm Ball Bearing Block

Selden Ball Bearing Blocks are used where loads are more moderate and dynamic. The ball bearings provide a smooth sheave rotation with the least amount of friction possible. Best used in applications like control lines on dinghies and keelboats and leech lines on yachts.

The Technical features on the 40mm Ball Bearing Blocks include a stainless steel strap to ensure high strength and stiff sides. Stainless Steel ball bearings and glass fibre reinforced sheave for best bearing strength even under high dynamic loads. Composite, 50/50 glass fibre/polyamide. Acetal bearing cage to prevent ball-to ball friction and to reduce weight. The center hole can be used as a becket.

Part # Description Working Load Breaking Load Sheave Diameter Max Line Weight Shackle
lbs kg lbs kg in mm in mm oz g in mm
SLD40410101R Ball Bearing Block: Single Swivel 40mm 551 250 1102 500 1.57 40 0.39 10 1.94 55 0.15 4
SLD40410102R Ball Bearing Block: Single Strap 40mm 551 250 1102 500 1.57 40 0.39 10 1.58 45 -- --
SLD40410103R Ball Bearing Block: Single Swivel Becket 40mm 551 250 1102 500 1.57 40 0.39 10 2.11 60 0.15 4
SLD40410104R Ball Bearing Block: Single Swivel Cam 40mm 198 90 396 180 1.57 40 0.27 7 3.52 100 0.15 4
SLD40410105R Ball Bearing Block: Single Swivel Becket Cam 40mm 396 180 793 360 1.57 40 0.27 7 3.66 104 .15 4
SLD40410106R Ball Bearing Block: Double Loop Head 40mm 1102 500 2204 1000 1.57 40 0.39 10 3.45 98 -- --
SLD40410107R Ball Bearing Block: Double Loop Head Becket 40mm 1102 500 2204 1000 1.57 40 0.39 10 3.59 102 -- --
SLD40410108R Ball Bearing Block:Triple Swivel 40mm 1653 750 3306 1500 1.57 40 0.39 10 5.92 168 .19 5
SLD40410109R Ball Bearing Block: Triple Swivel Becket 40mm 1653 750 3306 1500 1.57 40 0.39 10 6.03 171 0.19 5
SLD40410110R Ball Bearing Block: Triple Swivel Cam 40mm 992 450 1984 900 1.57 40 0.27 7 7.61 216 0.19 5
SLD40410111R Ball Bearing Block: Triple Swivel Becket Cam 40mm 1190 540 2380 1080 1.57 40 0.27 7 7.76 220 0.19 5
SLD40410112R Ball Bearing Block: Fiddle 40mm 551 250 1102 500 1.57 40 0.39 10 2.32 66 0.15 4
SLD40410113R Ball Bearing Block: Single Fiddle Swivel Becket 40mm 551 250 1102 500 1.57 40 0.39 10 2.46 70 0.15 4
SLD40410114R Ball Bearing Block: Fiddle Cam 40mm 551 250 1102 500 1.57 40 0.27 7 3.77 107 0.15 4
SLD40410115R Ball Bearing Block: Single Fiddle Becket Cam 40mm 551 250 1102 500 1.57 40 0.27 7 4.05 115 0.15 4
SLD40410116R Ball Bearing Block:Single Tie On 40mm 551 250 1102 500 1.57 40 0.39 10 1.69 48 -- --
SLD40410117R Ball Bearing Block: Single Cheek 40mm 551 250 1102 500 1.57 40 0.39 10 1.72 49 -- 2xM5 not included
SLD40410118R Ball Bearing Block:Fiddle Hook Cam 40mm 551 250 1102 500 1.57 40 0.39 10 4.16 118 -- --
SLD40410119R Ball Bearing Block:Fiddle Hook Cam Eye 40mm 551 250 1102 500 1.57 40 0.39 10 4.23 120 -- --
SLD40410120R Ball Bearing Block:Single Becket Strap 40mm 551 250 1102 500 1.57 40 0.39 10 1.76 50 -- --


SLD40410101R 40mm BBB Single Swivel Block Price: $28.00 SLD40410102R 40mm BBB Single Strap Head Price: $24.00
SLD40410103R 40mm BBB Single Swivel w/ Bec Price: $32.00 SLD40410104R 40mm BBB Single Swivel w/ Cam Price: $87.00
SLD40410105R 40mm BBB Single Swivel w/ Cam & Bec Price: $92.00 SLD40410106R 40mm BBB Double Loop Head Price: $62.00
SLD40410107R 40mm BBB Double Loop Head w/ Bec Price: $66.00 SLD40410108R 40mm BBB Triple Swivel Price: $118.00
SLD40410109R 40mm BBB Triple Swivel w/ Bec Price: $123.00 SLD40410110R 40mm BBB Triple Swivel w/ Cam Price: $145.00
SLD40410111R 40mm BBB Triple Swivel w/ Cam & Bec Price: $151.00 SLD40410112R 40mm BBB Fiddle Swivel Price: $43.00
SLD40410113R 40mm BBB Fiddle Swivel w/ Bec Price: $48.00 SLD40410114R 40mm BBB Fiddle Swivel w/ Cam Price: $49.00
SLD40410115R 40mm BBB Fiddle Swivel w/ Cam & Bec Price: $54.00 SLD40410116R 40mm BBB Single Tie On Price: $21.00
SLD40410117R 40mm BBB Cheek Price: $20.00 SLD40410118R 40mm BBB Fiddle Hook w/ Cam Price: $86.00
SLD40410119R 40mm BBB Fiddle Hook w/ Cam & Eye Price: $92.00 SLD40410120R 40mm BBB Single Strap Head w/ Bec Price: $25.00


Selden 60mm Roller Bearing Blocks

Selden 60mm Roller Bearing Blocks

Selden Roller bearing Blocks are designed for high loads. They work well in applications like backstays, cascades, sheets, spinaker systems and halyards.

Roller Bearing blocks are low friction and low weight. Machined with black anodised aluminum cheeks and Torlon roller bearings. PA washer insulates stainless from aluminum to prevent corrosion. The shackle features a Ø 6mm body and a Ø 8mm pin making it a lightweight and strong combination. The swivel pin is hollow and chamfered to reduce weight. The ball bearing winch feeder is used for leading a line to a free winch.

Part # Description Working Load Breaking Load Sheave Diameter Max Line Weight Shackle
lbs kg lbs kg in mm in mm oz g in mm
SLD40620101R Roller Bearing Block: Single Swivel 60mm 3306 1500 6613 3000 2.36 60 0.47 12 7.23 205 -- 6/8
SLD40620102R Roller Bearing Block: Single Swivel Becket 60mm 3306 1500 6613 3000 2.36 60 0.47 12 7.58 215 -- 6/8
SLD40620103R Roller Bearing Block: Single Backstay/Halyard 60mm 3306 1500 6613 3000 2.36 60 0.47 12 4.76 135 -- 8
SLD40620105R Roller Bearing Block: Double Swivel 60mm 3306 1500 6613 3000 2.36 60 0.47 12 11.64 330 -- 6/8
SLD40620107R Roller Bearing Block: Cheek 60mm 3306 1500 6613 3000 2.36 60 0.47 12 4.93 140 -- M6x3
SLD40620108R Roller Bearing Block: Winch Feeder 60mm 3306 1500 6613 3000 2.36 60 0.47 12 4.44 126 -- M10 CS


SLD40620101R 60mm RBB Single Price: $174.00 SLD40620102R 60mm RBB Single w/ Bec Price: $190.00
SLD40620103R 60mm RBB Single Halyard Price: $174.00 SLD40620105R 60mm RBB Double Price: $325.00
SLD40620107R 60mm RBB Cheek Price: $150.00 SLD40620108R 60mm RBB Winch Feeder Price: $155.00

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