NAAMS Trunnion Components

Trunnions are pin or pivotal supports for cylinders. NAAMS trunnion components are standardized components for automation manufacturing and production processes. Using these standards will help to reduce setup and production costs while making your entire operation more efficient. These components include full assemblies, blocks, bushings, and thrust washers. Browse all parts below or click on the corresponding NAAMS code to wish to purchase.

For the full trunnion catalog, click on the link below.
NAAMS Trunnion Components Catalog

Tolerances Unless Otherwise Specified
0.0	± 0.3	Place Machining
0.00	± 0.08	Between Machined Surfaces
	± 0.13	To Screw Holes, Non-Accumulative
	± 0.03	Between Dowels in the Same Plane

NAAMS Standards Trunnion Components
Cylinder Mounting Assemblies
NAAMS Code	Trunnion Block	Bearing
ACT101	ACT140	ACT121
ACT102	ACT140	ACT122
ACT103	ACT140	ACT123
ACT104	ACT140	ACT124
ACT105	ACT140	ACT125
ACT106	ACT140	ACT126
ACT107	ACT140	ACT127
ACT108	ACT140	ACT128
ACT111	ACT141	ACT131
ACT112	ACT141	ACT132
ACT113	ACT141	ACT133
ACT114	ACT141	ACT134
ACT115	ACT141	ACT135
Trunnion Blocks
NAAMS Code	Dimensions	Thru Hole Dia.
ACT140	100 x 25 x 70mm	28.0mm
ACT141	100 x 25 x 70mm	41.0mm
ACT160	164 x 25mm	28.0mm
Trunnion Bushings
NAAMS Code	I.D. (mm)	O.D. (mm)
ACT121	12	32
ACT122	15	32
ACT123	16	32
ACT124	18	32
ACT125	19.05	32
ACT126	20	32
ACT127	25	32
ACT128	25.4	32
ACT131	32	45
ACT132	34.93	45
ACT133	36	45
ACT134	38.1	45
ACT135	40	45
Thrust Washers
NAAMS Code	I.D. (mm)	O.D. (mm)
ACT171	12	50.8
ACT172	15	50.8
ACT173	16	50.8
ACT174	18	50.8
ACT175	19.05	50.8
ACT176	20	50.8
ACT177	25	50.8
ACT178	15.4	50.8
ACT181	32	63.5
ACT182	34.93	63.5
ACT183	36	63.5
ACT184	38.1	63.5
ACT185	40	63.5

NAAMS Standards Trunnion Components
Cylinder Mounting Assemblies
NAAMS Code	Trunnion Block	Bearing
ACT101	ACT140	ACT121
ACT102	ACT140	ACT122
ACT103	ACT140	ACT123
ACT104	ACT140	ACT124
ACT105	ACT140	ACT125
ACT106	ACT140	ACT126
ACT107	ACT140	ACT127
ACT108	ACT140	ACT128
ACT111	ACT141	ACT131
ACT112	ACT141	ACT132
ACT113	ACT141	ACT133
ACT114	ACT141	ACT134
ACT115	ACT141	ACT135
Trunnion Blocks
NAAMS Code	Dimensions	Thru Hole Dia.
ACT140	100 x 25 x 70mm	28.0mm
ACT141	100 x 25 x 70mm	41.0mm
ACT160	164 x 25mm	28.0mm
Trunnion Bushings
NAAMS Code	I.D. (mm)	O.D. (mm)
ACT121	12	32
ACT122	15	32
ACT123	16	32
ACT124	18	32
ACT125	19.05	32
ACT126	20	32
ACT127	25	32
ACT128	25.4	32
ACT131	32	45
ACT132	34.93	45
ACT133	36	45
ACT134	38.1	45
ACT135	40	45
Thrust Washers
NAAMS Code	I.D. (mm)	O.D. (mm)
ACT171	12	50.8
ACT172	15	50.8
ACT173	16	50.8
ACT174	18	50.8
ACT175	19.05	50.8
ACT176	20	50.8
ACT177	25	50.8
ACT178	15.4	50.8
ACT181	32	63.5
ACT182	34.93	63.5
ACT183	36	63.5
ACT184	38.1	63.5
ACT185	40	63.5