New Holland FR9040 Service Manual page 31

For example, if 40 pitches (40 pins) of a #40 chain were measured and the result was 523 mm (20.6 in) or greater
(using 3 % as the maximum allowable wear), the chain should be replaced. Anything less than 523 mm (20.6 in)
would still be acceptable by most industrial standards.
WEAR LIMITS ON ROLLER CHAIN
Strand No. 40 Chain
Length (08A)
in
New
Pitches
508 mm
40P
(20.0 in)
635 mm
50P
(25.0 in)
762 mm
60P
(30.0 in)
889 mm
70P
(35.0 in)
1016 mm
80P
(40.0 in)
1143 mm
90P
(45.0 in)
1270 mm
100P
(50.0 in)
STANDARD ROLLER CHAIN SIZES - NEW CHAINS
Chain No. 150 Chain No.
40 08A
50 10A
60 12A
80 16A
100 20A
120 24A
140 28A
160 32A
180
*
200 40A
* No. 150 Number does not exist.
INTRODUCTION
No. 50 Chain (10A) No. 60 Chain (12A) No. 80 Chain (16A)
Replace
New
523 mm 635 mm
(20.6 in) (25.0 in)
654 mm 793 mm
(25.7 in) (31.2 in)
784 mm 952 mm
(30.9 in) (37.5 in)
914 mm 1111 mm
(36.0 in) (43.7 in)
1047 mm 1270 mm
(41.2 in) (50.0 in)
1177 mm 1428 mm
(46.3 in) (56.2 in)
1308 mm 1578 mm
(51.5 in) (62.1 in)
Pitch
12.7 mm
(0.5 in)
15.8 mm
(0.6 in)
19 mm
(0.7 in)
25.4 mm
(1.0 in)
31.7 mm
(1.2 in)
38.1 mm
(1.5 in)
44.4 mm
(1.7 in)
50.8 mm
(2.0 in)
57.1 mm
(2.2 in)
63.4 mm
(2.5 in)
47500830 06/02/2013
Replace
New
654 mm 762 mm
(25.7 in) (30.0 in)
817 mm 952 mm
(32.2 in) (37.5 in)
981 mm 1143 mm
(38.6 in) (45.0 in)
1144 mm 1333 mm
(45.0 in) (52.5 in)
1308 mm 1524 mm
(51.5 in) (60.0 in)
1473 mm 1714 mm
(58.0 in) (67.5 in)
1635 mm 1905 mm
(64.4 in) (75.0 in)
Width
7.9 mm
(0.3 in)
9.5 mm
(0.4 in)
12.7 mm
(0.5 in)
15.8 mm
(0.6 in)
19 mm
(0.7 in)
25.4 mm
(1.0 in)
25.4 mm (1.0 in)
31.7 mm
(1.2 in)
35.7 mm
(1.4 in)
38.1 mm
(1.5 in)
26
Replace
New
787 mm 1016 mm
(31.0 in) (40.0 in)
981 mm 1270 mm
(38.6 in) (50.0 in)
1177 mm 1524 mm
(46.3 in) (60.0 in)
1371 mm 1778 mm
(54.0 in) (70.0 in)
1568 mm 2032 mm
(61.7 in) (80.0 in)
1765 mm 2286 mm
(69.5 in) (90.0 in)
1962 mm 2540 mm
(77.2 in) (100.0 in)
Roller Diameter
7.9 mm
(0.3 in)
10.1 mm
(0.4 in)
11.9 mm
(0.5 in)
15.8 mm
(0.6 in)
19 mm
(0.7 in)
22.2 mm
(0.9 in)
25.4 mm
(1.0 in)
28.5 mm
(1.1 in)
35.7 mm
(1.4 in)
39.6 mm
(1.6 in)
Replace
1047 mm
(41.2 in)
1308 mm
(51.5 in)
1568 mm
(61.7 in)
1828 mm
(72.0 in)
2095 mm
(82.5 in)
2355 mm
(92.7 in)
2616 mm
(103.0 in)