BOLT TORQUE SETTINGS FOR HYDRAULIC PARTS

Hydraulic America

This article is not about the removal or disassembly of an excavator's final drive or pump. When reassembling a final drive unit, this is only a kind reminder regarding proper bolt torque settings.

Purchase a metric torque wrench if you don't have one! This eliminates the costly errors that result from utilizing charts to determine bolt torque parameters.

kN = Axial Load in kiloNewtons Nm = Torque Setting in Newton Metres for Final Drive Motors and Hydraulic Pumps for Excavator

        
                
                    Bolt Spec.
                
                4.8
                5.8
                8.8
                10.9
                12.9
            

                
                    Dia x Pitch mm
                
                kN
                Nm
                kN
                Nm
                kN
                Nm
                kN
                Nm
                kN
                Nm
            

                3 x 0.5
                1.2
                0.9
                1.5
                1.1
                2.3
                1.8
                3.4
                2.6
                4.0
                3.0
            

                4 x 0.7
                2.1
                1.6
                2.7
                2.0
                4.1
                3.1
                6.0
                4.5
                7.0
                5.3
            

                5 x 0.8
                3.5
                3.2
                4.4
                4.0
                6.7
                6.1
                9.8
                8.9
                11.5
                10.4
            

                6 x 1
                4.9
                5.5
                6.1
                6.8
                9.4
                10.4
                13.8
                15.3
                16.1
                17.9
            

                7 x 1
                7.3
                9.3
                9.0
                11.5
                13.7
                17.2
                20.2
                25
                23.6
                30
            

                8 x 1
                9.9
                14.5
                12.2
                18.0
                18.9
                27
                28
                40
                32
                47
            

                9 x 1.25
                9.3
                13.6
                11.5
                16.8
                17.2
                25
                25
                37
                30
                44
            

                10 x 1.25
                15.8
                28.0
                19.5
                35
                30
                53
                43
                78
                51
                91
            

                10 x 1.5
                14.5
                26.6
                18
                33
                27
                50
                40
                73
                47
                86
            

                12 x 1.25
                23.8
                50
                29
                62
                45
                95
                65
                139
                77
                163
            

                12 x 1.75
                21.3
                46
                26
                56
                40
                86
                50
                127
                69
                148
            

                14 x 1.5
                32
                79
                40
                96
                61
                150
                90
                220
                105
                257
            

                14 x 2
                29
                73
                36
                90
                55
                137
                80
                201
                94
                135
            

                16 x 1.5
                43
                121
                54
                150
                82
                229
                121
                336
                141
                393
            

                16 x 2
                40
                113
                50
                141
                76
                214
                111
                314
                130
                369
            

                18 x 1.5
                57
                178
                70
                220
                110
                345
                157
                491
                184
                575
            

                18 x 2.5
                49
                157
                60
                194
                95
                306
                135
                435
                158
                509
            

                20 x 1.5
                72
                248
                89
                307
                140
                482
                199
                687
                233
                804
            

                20 x 2.5
                63
                222
                77
                275
                122
                432
                173
                615
                203
                719
            

                22 x 1.5
                88
                337
                109
                416
                172
                654
                245
                932
                266
                1090
            

                22 x 2.5
                78
                305
                97
                376
                152
                502
                216
                843
                253
                987
            

                24 x 2
                101
                420
                125
                519
                196
                814
                280
                1160
                237
                1360
            

                24 x 3
                90
                383
                112
                474
                175
                744
                250
                1080
                292
                1240
            

                27 x 2
                131
                615
                162
                760
                225
                1200
                363
                1700
                425
                1990
            

                27 x 3
                119
                568
                147
                703
                230
                1100
                328
                1570
                384
                1840
            

                30 x 2
                165
                850
                204
                1060
                321
                1670
                457
                2370
                535
                2380
            

                30 x 3.5
                144
                772
                178
                995
                280
                1500
                300
                2130
                467
                2500
            

    

Bolt Spec.	4.8	5.8	8.8	10.9	12.9
Dia x Pitch mm	kN	Nm	kN	Nm	kN	Nm	kN	Nm	kN	Nm
3 x 0.5	1.2	0.9	1.5	1.1	2.3	1.8	3.4	2.6	4.0	3.0
4 x 0.7	2.1	1.6	2.7	2.0	4.1	3.1	6.0	4.5	7.0	5.3
5 x 0.8	3.5	3.2	4.4	4.0	6.7	6.1	9.8	8.9	11.5	10.4
6 x 1	4.9	5.5	6.1	6.8	9.4	10.4	13.8	15.3	16.1	17.9
7 x 1	7.3	9.3	9.0	11.5	13.7	17.2	20.2	25	23.6	30
8 x 1	9.9	14.5	12.2	18.0	18.9	27	28	40	32	47
9 x 1.25	9.3	13.6	11.5	16.8	17.2	25	25	37	30	44
10 x 1.25	15.8	28.0	19.5	35	30	53	43	78	51	91
10 x 1.5	14.5	26.6	18	33	27	50	40	73	47	86
12 x 1.25	23.8	50	29	62	45	95	65	139	77	163
12 x 1.75	21.3	46	26	56	40	86	50	127	69	148
14 x 1.5	32	79	40	96	61	150	90	220	105	257
14 x 2	29	73	36	90	55	137	80	201	94	135
16 x 1.5	43	121	54	150	82	229	121	336	141	393
16 x 2	40	113	50	141	76	214	111	314	130	369
18 x 1.5	57	178	70	220	110	345	157	491	184	575
18 x 2.5	49	157	60	194	95	306	135	435	158	509
20 x 1.5	72	248	89	307	140	482	199	687	233	804
20 x 2.5	63	222	77	275	122	432	173	615	203	719
22 x 1.5	88	337	109	416	172	654	245	932	266	1090
22 x 2.5	78	305	97	376	152	502	216	843	253	987
24 x 2	101	420	125	519	196	814	280	1160	237	1360
24 x 3	90	383	112	474	175	744	250	1080	292	1240
27 x 2	131	615	162	760	225	1200	363	1700	425	1990
27 x 3	119	568	147	703	230	1100	328	1570	384	1840
30 x 2	165	850	204	1060	321	1670	457	2370	535	2380
30 x 3.5	144	772	178	995	280	1500	300	2130	467	2500

ABOUT

Hydraulic America is a representative branch of South Korean hydraulic component manufacture. Our parent company has been supplying hydraulic parts for over four decade to construction machinery brands such as Hyundai, Doosan and Volvo in domestic market as well as other international brands all around the globe. We are proud to offer our decades old experience and high quality products to our North American clients.

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72 Benbro Dr, Cheektowaga, NY 14225

Tel. 1-844-232-0906

55 Oakdale Ave St. Catharines, ON L2P 2L3

Toll Free 1-844-232-0906

Tel. 1-647-243-4474

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BOLT TORQUE SETTINGS FOR HYDRAULIC PARTS

kN = Axial Load in kiloNewtons Nm = Torque Setting in Newton Metres for Final Drive Motors and Hydraulic Pumps for Excavator

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