Chain Gauges | McMaster-Carr

	Roller Chain Trade Size Roller Chain Trade Size

35
35-2
40
40-2
41
50
50-2
60
60-2
80
80-2
100
100-2
120
120-2
140
140-2
160
160-2
180
180-2
200
200-2
240
240-2

	Overall Length Overall Length

8 3/4"

15"

18"

	Overall Width Overall Width

5/8"

1 1/2"

2 5/8"

	For Roller Chain Strand Type For Roller Chain Strand Type

Double

Single

	Material Material

Plastic

Steel

	Trade Size Trade Size

	For Chain Grade For Chain Grade

100

	For Manufacturer Model Number For Manufacturer Model Number

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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7 Products

ANSI Roller Chain Wear-Indicating Rulers

Place this plastic ruler on links to measure chain wear.

	Overall
For Roller Chain Trade Size	Lg.	Wd.	Material		Each
For Single- and Double-Strand ANSI Roller Chain
40, 41, 50, 60, 80, 100, 120, 140, 160, 180, 200, 240, 40-2, 50-2, 60-2, 80-2, 100-2, 120-2, 140-2, 160-2, 180-2, 200-2, 240-2	15"	2 5/8"	Plastic	000000	00000

ANSI Roller Chain Wear-Indicating Inserts

Place these steel inserts between two roller links. If they can be inserted past your ANSI number, the chain is worn out.

	Overall
For Roller Chain Trade Size	Lg.	Wd.	Material		Each
For Single- and Double-Strand ANSI Roller Chain
35, 40, 41, 50, 60, 80, 100, 35-2, 40-2, 50-2, 60-2, 80-2, 100-2	8 3/4"	5/8"	Steel	000000	0000000
80, 100, 120, 140, 160, 180, 200, 240, 80-2, 100-2, 120-2, 140-2, 160-2, 180-2, 200-2, 240-2	18"	1 1/2"	Steel	000000	000000

Wear Gauge for Grade 80 and Grade 100 Chain

Gauge measures the maximum allowable wear tolerances on links of Grade 80 and Grade 100 steel chain, as required by OSHA. If the gauge can be inserted over any part of the link, the chain should be taken out of service.

For Grade 80 and Grade 100 Chain
For Straight-Link Chain Trade Size	For Manufacturer Model Number		Each
9/32, 3/8, 1/2, 5/8, 3/4, 7/8, 1	C8, C10	0000000	000000
9/32, 3/8, 1/2, 5/8, 3/4, 7/8, 1	L8, L10	00000000	00000
9/32, 3/8, 1/2, 5/8, 3/4, 7/8, 1	P8, P10, H29, KWB	00000000	00000
For Grade 100 Chain
9/32, 3/8, 1/2, 5/8, 3/4, 7/8, 1	PW, PWA	00000000	00000