14 inch

Six-Sheave-J-Block

Key to six sheave J-Block Model Numbers

J

30

SX

14

B

T

A

Shorty “J” Crane Block

Safe Working Limit-Tons

Number of Sheaves

SX = 6
Sextuple

Sheave Size – Nom. O.D.

Sheave Bearing:

B = Bronze Bushed
R= Roller Bearing

Hook-Thrust Bearing

Cheek Weights:
A = No wts.
AB = Med. wts.
B = Std. wts.
C = X-Heavy wts.

Model	WT.	A	B	E	F	H	J	K
		Overall	Net	Thickness		Throat Opening	Hook	Hook
		Length	Length		Width	w/Latch	Thick.	Width
J30SX14BTA	587	40.125	32.250	16.250	18	3.28	3.50	3
J30SX14BTB	768	40.125	32.250	20.187	18	3.28	3.50	3
J30SX14BTC	932	40.125	32.250	24.437	18	3.28	3.50	3
J30SX14RTA	587	40.125	32.250	16.250	18	3.28	3.50	3
J30SX14RTB	768	40.125	32.250	20.187	18	3.28	3.50	3
J30SX14RTC	932	40.125	32.250	24.437	18	3.28	3.50	3
J40SX14BTA	656	46.250	37.875	16.250	18	3.27	4.250	3.38
J40SX14BTB	836	46.250	37.875	20.187	18	3.27	4.250	3.38
J40SX14BTC	1000	46.250	37.875	24.437	18	3.27	4.250	3.38
J40SX14RTA	656	46.250	37.875	16.250	18	3.27	4.250	3.38
J40SX14RTB	836	46.250	37.875	20.187	18	3.27	4.250	3.38
J40SX14RTC	1000	46.250	37.875	24.437	18	3.27	4.250	3.38
J55SX14BTA	842	51.500	41.375	17.375	18	4.63	6.13	4
J55SX14BTB	1023	51.500	41.375	20.687	18	4.63	6.13	4
J55SX14BTC	1187	51.500	41.375	24.937	18	4.63	6.13	4
J55SX14RTA	842	51.500	41.375	17.375	18	4.63	6.13	4
J55SX14RTB	1023	51.500	41.375	20.687	18	4.63	6.13	4
J55SX14RTC	1187	51.500	41.375	24.937	18	4.63	6.13	4
J60SX14BTA	842	51.500	41.375	17.375	18	4.63	6.13	4
J60SX14BTB	1023	51.500	41.375	20.687	18	4.63	6.13	4
J60SX14BTC	1187	51.500	41.375	24.937	18	4.63	6.13	4
J60SX14RTA	842	51.500	41.375	17.375	18	4.63	6.13	4
J60SX14RTB	1023	51.500	41.375	20.687	18	4.63	6.13	4
J60SX14RTC	1187	51.500	41.375	24.937	18	4.63	6.13	4

*Gunnebo Johnson Design Factor is 4 to 1, with some exceptions;

45 Ton models 3.6 to 1

60 Ton models 3.7 to 1

325 Ton models 3.7 to 1