Regular Wood Blocks
for Manila Rope

  • Laser cut side plates.
  • Grade 5 bolts secured with lock washers and staked nuts.
  • Bronze bushed sheaves with larger bearing diameter for extended block life.
  • Beckets furnished on all blocks.  For reeving information, see page 336.

Block Size
(in.)

Fitting

Single  Sheave

Double Sheave

Triple Sheave

21 B
Stock No.

22 B
Stock No.

23 B
Stock No.

4

HS

603831

604634

605438

5

HS

603859

604652

605456

6

HS

603877

604670

605474

8

HS

603911

604714

605517

4

N

606437

606838

607230

5

N

606455

606856

607258

6

N

606473

606874

607276

8

N

606516

606918

607310

4

S

610039

611635

613232

5

S

610057

611653

613250

6

S

610075

611671

613278

8

S

610119

611715

613312


Block
Size
(in.)

Sheave Dimensions (in.)

Manila
Rope
Size
(in.)

Working Load Limit
(lbs.)*

Weight Each
(lbs.)

Outside
Diam.

Rim
Thickness

Center
Pin Diam.

21
Single

22
Double

23
Triple

21
Single

22
Double

23
Triple

4

2.25

.63

.38

1/2

1000

1400

1800

1.75

3.00

4.00

5

3.00

.75

.38

5/8

1200

1800

2400

3.25

5.60

6.50

6

3.50

1.00

.50

3/4

1800

2500

3200

5.00

8.50

11.50

8

4.75

1.13

.63

7/8 - 1

2800

3800

4800

9.00

14.00

21.50

*Ultimate Load is 4 times the Working Load Limit.

Steel Shell Blocks for Manila Rope

  • Laser cut side plates.
  • Grade 5 bolts secured with lock washers and staked nuts.
  • Bronze bushed sheaves with larger bearing diameter for extended block life.
  • New style hanger for fitting attachment.

Block
Size
(in.)

Fitting

Single Sheave

Double Sheave

Triple Sheave

301 B*
Stock No.

302 B*
Stock No.

303 B*
Stock No.

4

HS

680971

681373

681774

6

HS

680999

681391

681792

8

HS

681015

681417

681818

4

N

682639

683031

683433

6

N

682675

683077

683479

8

N

682719

683111

683512

4

P

691031

692637

694234

6

P

691077

692673

694270

8

P

691111

692717

694314

*Bearing Code:  B - Self Lubricating Bronze Bushed

Block Size
(in.) 		Sheave Size
(in.) 		Manila
Rope
Size
(in.) 		Working Load Limit
(lbs.)* 		Weight Each
(lbs.)
Outside
Diam. 		Rim
Thickness 		Single Double Triple Single Double Triple
4 2.25 .63 1/2 1100 1600 2200 2.25 3.75 5.00
6 3.50 1.00 3/4 2000 3300 4000 5.50 9.25 12.50
8 4.75 1.13 1 3300 5100 7000 10.00 16.50 22.00

*Ultimate Load is 3.5 times the Working Load Limit.