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Big Boat blocks > Stainless Steel Blocks

Hand-polished stainless steel sideplates are the trademark of these beautiful blocks. But it's the sheave design that gives them their strength and durability. Sheaves use a low-friction composite sleeve bearing for extreme radial loads. Ball bear- ings handle side loads. This proven sheave design is used on America's Cup boats and Super Yachts where blocks must perform under very high, sustained loads without being excessive in size.

Block details include low-profile screw adapters and stainless-on-stainless construction for easy service. Sheaves on footblocks remove without unbolting the block. Headposts on swivel blocks lock or swivel freely.

3129	Three-way head system locks in two positions or swivels freely Hand polished to a mirror finish Low-friction composite sleeve bearing handles extreme loads Ball bearings handle side loads Low-profile screws

3130

3131

3132

3133

3134

3135

3136

3137

3138

Part No.	Description	Sheave		Length		Weight		Max line		Safe working load		Breaking strength
		in	mm	in	mm	oz	g	in	mm	Ib	kg	Ib	kg
3129	Single	3	75	61/2	165	24.8	703	9/16	14	5000	2268	10000	4536
3130	Single/becket	3	75	73/4	197	27.2	770	9/16	14	5000	2268	10000	4536
3131	Footblock*	3	76	41/2	114	25	708	9/16	14	5250	2382	10500	4763
3132	Single	4	100	71/2	191	34	958	9/16	14	7500	3402	15000	6804
3133	Single/becket	4	100	83/4	222	36	1030	9/16	14	7500	3402	15000	6804
3134	Footblock	4	100	61/2	165	55	1550	3/4	19	7750	3515	15500	7031
3135	Single	6	150	11	279	88	2495	7/8	22	18000	8165	36000	16329
3136	Single/becket	6	150	145/8	371	96	2722	7/8	22	18000	8165	36000	16329
3137	Footblock	6	150	79/16	192	77	2190	7/8	22	18250	8278	36500	16556
3138	Stand-up	3	75	63/4	171	28.6	811	9/16	14	5000	2268	10000	4536

* - See this page for hole spacing

Index | Use chart | 57 mm | 75 mm | 100 mm | 125 mm & 150 mm | Teardrop | Crossover | Mastbase Halyard Lead & Flip-Flop | Footblocks | AirRunners | Stainless Steel Runners | Opening Foot Blocks | Snatch | ESP Blocks | Stainless Steel ESP | Stainless Steel Blocks | Specifications