H-Type Bearing

Ø32

Ø40

Ø50

Ø63

Ø80

Ø100

Ø125

Ø160

Ø200

Ø250

Ø320

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Technical Drawing

3D Drawings

Catalog

Cylinder (Ø mm)	A	B	C	ch	D	E	F	G	H	ØI	L1	L2	L3	L4	L5	L6	N	O	P	Q	R	T	U	V	VI	Z
32	97	49	51	15	24	4.3	93	45	12	12	3	19	75	125	187	47	6.6	12	11	6.5	M6	78	61	32.5	60.7	74
40	115	58	58.2	15	28	11	112	55	12	16	3	24	80	140	207	52	6.6	12	11	6.5	M6	84	69	38	64	87
50	137	70	70.2	20	34	18.8	134	65	15	20	3	27	78	148	223	57	9	16	15	8.5	M8	100	85	46.5	70	104
63	152	85	85.2	20	34	15.3	147	80	15	20	3	27	106	178	243	47	9	16	15	9	M8	105	100	56.5	74.7	119
80	189	105	105.5	26	50	25	180	100	20	25	3	27	111	195	267	49	11	20	18	11	M10	130	130	72	82	148
100	213	130	130.5	26	55	30	206	120	20	25	3	27	128	218	290	49	11	20	18	11	M10	150	150	89	83	173

What Is an H-Type Bearing?

An H-type bearing is the bracket that supports the trunnion pins of a trunnion cylinder from both sides and bolts to the machine. Its H-shaped body holds the cylinder axis steady while it swings.

With trunnion cylinders the two bearings must be aligned and parallel, otherwise the pins bind and the cylinder cannot swing freely.

What Is an H-Type Bearing?
Role	Supports the trunnion pins on both sides
Used with	Trunnion (middle joint) cylinders
Mounting note	Both bearings aligned and parallel

See all custom cylinders and connection equipment, or contact us for a quotation.

Frequently Asked Questions

What is the difference between H- and U-type bearings?

The body shape and bolting pattern; choose by the mounting surface on your machine.

Why must the bearings be aligned?

Misalignment binds the trunnions, stiffens the swing and creates side load.

Do the bearings need lubrication?

Periodic greasing of the pivot surfaces extends their life.

Installing an H-Type Bearing

The H-type bearing bolts to the machine through its side faces and grips the trunnion from both sides. Fit both bearings loosely, seat the cylinder’s trunnions, swing the cylinder by hand through its full arc to check for binding, and then tighten the bolts in a cross pattern.

Side-face mounting suits frames with vertical mounting faces on either side of the cylinder. Grease the pivot surfaces periodically and renew pins or bushes when play appears.

H-Type Bearing Alignment Steps

Assemble the trunnion cylinder with both bearings on the bench first.
Place the bearings on the vertical side faces of the machine and tighten the bolts by hand.
Swing the cylinder by hand through its full angle; if it binds, shift the bearings until it moves freely.
Once it swings freely, tighten the bolts in a crosswise sequence.
Re-check bolt torque and trunnion play after the first week of operation.