Manitowoc National Crane NBT40 Series Service Manual

National Crane Published 8-01-2017 Control # 287-11 1-15
NBT40 SERVICE MANUAL INTRODUCTION
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Table 1-7 Inch Series Bearing Bolts – Untreated (black finish)
Table 1-8 Metric Series Bearing Bolts– Untreated (black finish)
Nominal Size, Threads per
Inch, and Series
Designation
Grade
Torque (ft/lb)
Maximum Nominal Minimum
5/8-11 UNC 8 234 225 216
5/8-18 UNF 8 250 240 230
3/4-10 UNC 8 385 370 355
7/8-9 UNC 8 615 591 567
1-8 UNC 8 929 893 857
1 1/4-7 UNC 8 2043 1964 1885
Nominal Size, Threads per
Inch, and Series
Designation
Grade
Torque (Nm)
Maximum Nominal Minimum
M20X2.5 12.9 756 727 698
M24X3 10.9 1089 1047 1005
M27X3 10.9 1591 1530 1469
Reference Only

Manitowoc National Crane NBT40 Series Specifications

General

Brand	Manitowoc
Model	National Crane NBT40 Series
Category	Construction Equipment
Language	English