Page 10
AG20003
1. Tighten castle or slotted hex nut to initial torque indicated on chart while turning hub in both directions to
insure all bearing surfaces are in contact.
2. Back nut off and repeat step #1.
3. Back nut off, do not allow hub to turn.
4. Tighten nut to final torque indicated on chart.
5. Install cotter pin, if needed loosen or tighten nut to the next closest locking slot.
6. Check hub for end play.
7. If end play can be felt, start over and readjust bearings. If end play is felt again, try readjusting with a different
castle or slotted hex nut.
8. The bearings are set correctly when no end play can be felt after adjustment.
Hub
Initial Toque
Final Torque
8 bolt
75 ft/ lbs
35 ft/lbs
wheel Bearing Assembly instructions
Bolt toRqUE
Torque figures indicated are valid for non-greased or non-oiled threads and heads unless otherwise specified. Therefore, do not grease or oil
bolts or capscrews unless otherwise specified in this manual. When using locking elements, increase torque values by 5%.
* GRADE or CLASS value for bolts and capscrews are identified by their head markings.
Bolt toRqUE DAtA FoR StANDARD NUtS, BoltS, AND CAPSCREwS
Tighten all bolts to torques specified in chart unless otherwise noted. Check tightness of bolts periodically, using bolt chart as guide.
Replace hardware with same grade bolt.
NOTE: Unless otherwise specified, high-strength Grade 5 hex bolts are used throughout assembly of equipment.
*5$'(
&/$66
&/$66
*5$'(
*5$'(
&/$66
$
Bolt torque for Standard bolts *
“A”
GRADE 2
GRADE 5
GRADE 8
lb-ft
(N.m)
lb-ft
(N.m)
lb-ft
(N.m)
1/4”
6
(8)
9
(12)
12
(16)
5/16”
10
(13)
18
(25)
25
(35)
3/8”
20
(27)
30
(40)
45
(60)
7/16”
30
(40)
50
(70)
80
(110)
1/2”
45
(60)
75
(100)
115
(155)
9/16”
70
(95)
115
(155)
165
(220)
5/8”
95
(130)
150
(200)
225
(300)
3/4”
165
(225)
290
(390)
400
(540)
7/8”
170
(230)
420
(570)
650
(880)
1”
225
(300)
630
(850)
970
(1310)
Bolt torque for Metric bolts *
“A”
ClASS 8.8
ClASS 9.8
ClASS 10.9
lb-ft
(N.m)
lb-ft
(N.m)
lb-ft
(N.m)
6
9
(13)
10
(14)
13
(17)
7
15
(21)
18
(24)
21
(29)
8
23
(31)
25
(34)
31
(42)
10
45
(61)
50
(68)
61
(83)
12
78
(106)
88
(118)
106
(144)
14
125
(169)
140
(189)
170
(230)
16
194
(263)
216
(293)
263
(357)
18
268
(363)
--
--
364
(493)
20
378
(513)
--
--
515
(689)
22
516
(699)
--
--
702
(952)
24
654
(886)
--
--
890
(1206)
toRqUE SPECiFiCAtioN
