29 CFR Appendix II to Part 1918 - Appendix II to Part 1918—Tables for Selected Miscellaneous Auxiliary Gear (Mandatory)

Note:

This appendix is mandatory and is to be used in the appropriate sections of part 1918 when certificates or the manufacturers' use recommendations are not available.

Table 1—Wire Rope Clips

Improved plow steel, rope (Inches (cm))	Minimum number of clips		Minimum spacing (Inches (cm))
	Drop forged	Other material
1/2 or less (1.3)	3	4	3 (7.6)
5/8 (1.6)	3	4	3 3/4 (9.5)
3/4 (1.9)	4	5	4 1/2 (11.4)
7/8 (2.2)	4	5	5 1/4 (13.3)
1 (2.5)	5	6	6 (15.2)
1 1/8 (2.9)	6	6	6 3/4 (17.1)
1 1/4 (3.2)	6	7	7 1/2 (19.1)
1 3/8 (3.5)	7	7	8 1/4 (21.0)
1 1/2 (3.8)	7	8	9 (22.9)

Table 2—Natural Fiber Rope and Rope Slings—Load Capacity in Pounds (lbs.) Safety Factor = 5—Eye and Eye Sling—Basket Hitch

[Angle of rope to horizontal—90 deg. 60 deg. 45 deg. 30 deg.]

Rope diameter nominal inch	Vertical hitch	Choker hitch	Angle of rope to vertical
			0 deg.	30 deg.	45 deg.	60 deg.
1/2	550	250	1,100	900	750	550
9/16	700	350	1,400	1,200	1,000	700
5/8	900	450	1,800	1,500	1,200	900
3/4	1,100	550	2,200	1,900	1,500	1,100
13/16	1,300	650	2,600	2,300	1,800	1,300
7/8	1,500	750	3,100	2,700	2,200	1,500
1	1,800	900	3,600	3,100	2,600	1,800
1 1/16	2,100	1,100	4,200	3,600	3,000	2,100
1 1/8	2,400	1,200	4,800	4,200	3,400	2,400
1 1/4	2,700	1,400	5,400	4,700	3,800	2,700
1 5/16	3,000	1,500	6,000	5,200	4,300	3,000
1 1/2	3,700	1,850	7,400	6,400	5,200	3,700
1 5/8	4,500	2,300	9,000	7,800	6,400	4,500
1 3/4	5,300	2,700	10,500	9,200	7,500	5,300
2	6,200	3,100	12,500	10,500	8,800	6,200
2 1/8	7,200	3,600	14,500	12,500	10,000	7,200
2 1/4	8,200	4,100	16,500	14,000	11,500	8,200
2 1/2	9,300	4,700	18,500	16,000	13,000	9,300
2 5/8	10,500	5,200	21,000	18,000	14,500	10,500
Endless Sling
1/2	950	500	1,900	1,700	1,400	950
9/16	1,200	600	2,500	2,200	1,800	1,200
5/8	1,600	800	3,200	2,700	2,200	1,600
3/4	2,000	950	3,900	3,400	2,800	2,000
13/16	2,300	1,200	4,700	4,100	3,300	2,300
7/8	2,800	1,400	5,600	4,800	3,900	2,800
1	3,200	1,600	6,500	5,600	4,600	3,200
1 1/16	3,800	1,900	7,600	6,600	5,400	3,800
1 1/8	4,300	2,200	8,600	7,500	6,100	4,300
1 1/4	4,900	2,400	9,700	8,400	6,900	4,900
1 5/16	5,400	2,700	11,000	9,400	7,700	5,400
1 1/2	6,700	3,300	13,500	11,500	9,400	6,700
1 5/8	8,100	4,100	16,000	14,000	11,500	8,100
1 3/4	9,500	4,800	19,000	16,500	13,500	9,500
2	11,000	5,600	22,500	19,500	16,000	11,000
2 1/8	13,000	6,500	26,000	22,500	18,500	13,000
2 1/4	15,000	7,400	29,500	25,500	21,000	15,000
2 1/2	16,500	8,400	33,500	29,000	23,500	16,500
2 5/8	18,500	9,500	37,000	32,500	26,500	18,500

Table 3A

Polypropylene Rope and Rope Slings
Load Capacity in Pounds (lbs.) Safety Factor = 6
Eye and Eye Sling
Basket Hitch
Angle of rope to horizontal

Rope diameter nominal in.	Vertical hitch	Choker hitch	Angle of rope to vertical
			0 deg.	30 deg.	45 deg.	60 deg.
1/2	650	350	1,300	1,200	950	650
9/16	800	400	1,600	1,400	1,100	800
5/8	1,000	500	2,000	1,700	1,400	1,000
3/4	1,300	700	2,700	2,300	1,900	1,300
13/16	1,600	800	2,600	2,300	2,200	1,600
7/8	1,800	900	3,100	2,700	2,600	1,800
1	2,200	1,100	3,600	3,100	3,100	2,200
1 1/16	2,500	1,300	4,200	3,600	3,600	2,500
1 1/8	2,900	1,500	4,800	4,200	4,100	2,900
1 1/4	3,300	1,700	6,700	5,800	4,700	3,300
1 5/16	3,700	1,900	7,400	6,400	5,300	3,700
1 1/2	4,700	2,400	9,400	8,100	6,700	4,700
1 5/8	5,700	2,900	11,500	9,900	8,100	5,700
1 3/4	6,800	3,400	13,500	12,000	9,600	6,800
2	8,200	4,100	16,500	14,500	11,500	8,200
2 1/8	9,700	4,800	19,500	16,500	13,500	9,700
2 1/4	11,000	5,500	22,000	19,000	15,500	11,000
2 1/2	12,500	6,300	25,500	22,000	18,000	12,500
2 5/8	14,500	7,100	28,500	24,500	20,000	14,500

Table 3B

Polypropylene Rope and Rope Slings
Load Capacity in Pounds (lbs.) Safety Factor = 6
Endless Sling
Basket Hitch
Angle of rope to horizontal
90 deg. 60 deg. 45 deg. 30 deg.

Rope diameter nominal in.	Vertical hitch	Choker hitch	Angle of rope to vertical
			0 deg.	30 deg.	45 deg.	60 deg.
1/2	1,200	600	2,400	2,100	1,700	1,200
9/16	1,500	750	2,900	2,500	2,100	1,500
5/8	1,800	900	3,500	3,100	2,500	1,800
3/4	2,400	1,200	4,900	4,200	3,400	2,400
13/16	2,800	1,400	5,600	4,900	4,000	2,800
7/8	3,300	1,600	6,600	5,700	4,600	3,300
1	4,000	2,000	8,000	6,900	5,600	4,000
1 1/16	4,600	2,300	9,100	7,900	6,500	4,600
1 1/8	5,200	2,600	10,500	9,000	7,400	5,200
1 1/4	6,000	3,000	12,000	10,500	8,500	6,000
1 5/16	6,700	3,400	13,500	11,500	9,500	6,700
1 1/2	8,500	4,200	17,000	14,500	12,000	8,500
1 5/8	10,500	5,100	20,500	18,000	14,500	10,500
1 3/4	12,500	6,100	24,500	21,000	17,500	12,500
2	15,000	7,400	29,500	25,500	21,000	15,000
2 1/8	17,500	8,700	35,500	30,100	24,500	17,500
2 1/4	19,500	9,900	39,500	34,000	28,000	19,500
2 1/2	23,000	11,500	45,500	39,500	32,500	23,000
2 5/8	25,500	13,000	51,500	44,500	36,500	25,500

Table 4A—Rated Load for Grade 80 Alloy Steel Chain Slings 1 (Chain per NACM)

Chain size nominal		Single leg sling-90 deg. to horizontal loading		Rated load double leg sling horizontal angle (note 2)
inch	mm	lb	kg	60 deg. Double at 60 deg.		45 deg. Double at 45 deg.		30 deg. Double at 30 deg.
				lb	kg	lb	kg	lb	kg
1/4	7	3,500	1,570	6,100	2,700	4,900	2,200	3,500	1,590
3/8	10	7,100	3,200	12,300	5,500	10,000	4,500	7,100	3,200
1/2	13	12,000	5,400	20,800	9,400	17,000	7,600	1,200	5,400
5/8	16	18,100	8,200	31,300	14,200	25,600	11,600	18,100	8,200
3/4	20	28,300	12,800	49,000	22,300	40,000	18,200	28,300	12,900
7/8	22	34,200	15,500	59,200	27,200	48,400	22,200	34,200	15,700
1	26	47,700	21,600	82,600	37,900	67,400	31,000	47,700	21,900
1 1/4	32	72,300	32,800	125,200	56,800	102,200	46,400	72,300	32,800

Notes:

(1) Other grades of proof tested steel chain include Proof Coil (Grade 28), Hi-Test (grade 43 Chain, and Transport (grade 70) Chain. These grades are not recommended for overhead lifting and therefore are not covered by this standard.

(2) Rating of multi-leg slings adjusted for angle of loading between the inclined leg and the horizontal plane of the load.

Table 4B—Maximum Allowable Wear at any Point of Link

Nominal chain or coupling link size		Maximum allowable wear of cross-sectional diameter, in.
inch	mm
1/4	7	0.037
3/8	10	0.052
1/2	13	0.060
5/8	16	0.084
3/4	20	0.105
7/8	22	0.116
1	26	0.137
1 1/4	32	0.169

Note: For other sizes, consult chain or sling manufacturer.

Table 5—Safe Working Loads for Shackles

[In tons of 2,000 pounds]

Material size		Pin diameter		Safe working load in 2,000 lb tons
Inches	(cm)	Inches	(cm)
1/2	(1.3)	5/8	(1.6)	1.4
5/8	(1.6)	3/4	(1.9)	2.2
3/4	(1.9)	7/8	(2.2)	3.2
7/8	(2.2)	1	(2.5)	4.3
1	(2.5)	1 1/8	(2.9)	5.6
1 1/8	(2.9)	1 1/4	(3.2)	6.7
1 1/4	(3.2)	1 3/8	(3.5)	8.2
1 3/8	(3.5)	1 1/2	(3.8)	10.0
1 1/2	(3.8)	1 5/8	(4.1)	11.9
1 3/4	(4.4)	2	(5.1)	16.2
2	(5.1)	2 1/4	(5.7)	21.2

Wire Rope Table—Rate Loads for Single Leg Slings 6 × 19 or 6 × 37 Classification Improved Plow Steel Grade Rope With Fiber Core (FC)

[Rated loads [note 1], tons (2,000 lb)]

Vertical				Choker
Rope diameter, inch	HT	MS	S	HT, MS&S
1/4	0.49	0.51	0.55	0.38
5/16	0.78	0.79	0.85	0.6
3/8	1.1	1.1	1.2	0.85
7/16	1.4	1.5	1.7	1.2
1/2	1.8	2.0	2.1	1.5
9/16	2.3	2.5	2.7	1.9
5/8	2.8	3.1	3.3	2.3
3/4	3.9	4.4	4.8	3.3
7/8	5.2	6.0	6.4	4.5
1	6.7	7.7	4.8	5.9
1 1/8	8.4	9.5	11	7.4
1 1/4	10	12	13	9.0
1 3/8	12	14	15	11
1 1/2	15	17	18	13
1 5/8	17	19	21	15
1 3/4	20	22	25	17
2	26	29	32	22

HT = Hand Tucked Splice.

For Hidden Tuck Splice (IWRC), use vales in HT (FC) columns.

MS = Mechanical Splice.

S = Poured Socket or Swaged Socket.

Note: (1) These values are based on slings being vertical. If they are not vertical, the rated load shall be reduced. If two or more slings are used, the minimum horizontal angle between the slings shall also be considered.

Wire Rope Table—Rated Loads for Single Leg Slings 6 × 19 or 6 × 37 Classification Extra Improved Plow Steel Grade Rope With Independent Wire Rope Core (IWRC)

[Rated loads [note 1] , tons (2,000 lb)]

Vertical				Choker	Vertical basket
Rope diameter, inch	HT	MS	S	HT, MS&S	[Note (2)] HT	[Note (3)] MS&S
1/4	0.53	0.59	0.59	0.31	1.1	1.1
5/16	0.82	0.87	0.92	0.64	1.6	1.7
3/8	1.2	1.2	1.3	0.92	2.3	2.5
7/16	1.5	1.7	1.8	1.2	3.1	3.4
1/2	2.0	2.2	2.3	1.6	4.0	4.4
9/16	2.5	2.8	2.9	2.0	1.9	5.5
5/8	3.0	3.4	3.6	2.6	6.0	6.8
3/4	4.2	4.9	5.1	3.6	8.4	9.7
7/8	5.5	6.6	6.9	4.8	11	13
1	7.2	8.5	9.0	6.3	14	17
1 1/8	9.0	10	11	7.9	18	20
1 1/4	11	13	14	9.7	22	26
1 3/8	13	15	17	12	27	31
1 1/2	16	18	20	14	32	37
1 5/8	18	21	23	16	37	43
1 3/4	21	25	27	19	43	49
2	28	32	34	24	55	64

HT = Hand tucked Splice

For Hidden Tuck Splice (IWRC), use values in HT columns of Table 3.

MS = Mechanical Splice. S = Poured Socket or Swaged Socket.

Notes:

(1) These values are based on slings being vertical. If they are not vertical, the rated load shall be reduced. If they are not vertical, the rated load shall be reduced. If two or more slings are used, the minimum horizontal angle between the slings shall also be considered.

(2) These values only apply when the D/d ratio is 15 or greater.

(3) These values only apply when the D/d ratio is 25 or greater.

D = Diameter or curvature around which the body of the sling is bent. d = Diameter of rope.

Wire Rope Table-Rated Loads for Single Leg Slings 6 × 19 or 6 × 37 Classification Extra Improved Plow Steel Grade Rope With Independent Wire Rope Core (IWRC)

[Rated loads [note 1], tons (2,000 lb)]

Vertical			Choker	Vertical basket [note (2)]
Rope diameter	MS	S	MS&S	MS&S
1/4	0.65	0.68	0.48	1.3
5/16	1.0	1.1	.074	2.0
3/8	1.4	1.5	1.1	2.9
7/16	1.9	2.0	1.4	3.9
1/2	2.5	2.7	1.9	5.1
9/16	3.2	3.4	2.4	6.4
5/8	3.9	4.1	2.9	7.8
3/4	5.6	5.9	4.1	11
7/8	7.6	8.0	5.6	15
1	9.8	10	7.2	20
1 1/8	12	13	9.1	24
1 1/4	15	16	11	30
1 3/8	18	19	13	36
1 1/2	21	23	16	42
1 5/8	24	26	18	49
1 3/4	28	31	21	57
2	37	40	28	73

HT = Hand tucked Splice

For Hidden Tuck Splice (IWRC), use values in HT columns of Table 3.

MS = Mechanical Splice.

S = Poured Socket or Swaged Socket.

Note: (1) These values are based on slings being vertical. If they are not vertical, the rated load shall be reduced. If they are not vertical, the rated load shall be reduced. If two or more slings are used, the minimum horizontal angle between the slings shall also be considered.

(2) These values only apply when the D/d ratio is 25 or greater.

[62 FR 40202, July 25, 1997, as amended at 65 FR 40947, June 30, 2000]