Guide Sleeves / Gland Bushes

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Guide Sleeves / Gland Bushes
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Release time : 2026-03-12

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Detailed Description

Q: How Do Custom Guide Sleeves & Gland Bushes Improve Hydraulic Cylinder Performance?

A: As a direct OEM manufacturer, Dongte engineers ductile iron guide sleeves and gland bushes that provide precise low-friction guidance and limit radial offset. Installed inside the cylinder end cover, our wear-resistant components ensure strict coaxiality, bear heavy lateral forces, and protect vital oil seals. We supply these high-load bearing standard parts for global bulk orders.

Provide precise guidance and stable support for the piston rod, limit radial offset, reduce vibration and yaw, and ensure a straight movement trajectory.
Ensure coaxiality: Support the piston rod to make it strictly concentric with the cylinder barrel to avoid eccentric wear.
Protective seal: It provides an installation support for the oil seal at the cylinder mouth. The smooth movement of the piston rod can significantly extend the service life of the oil seal.
Bearing lateral forces: Withstand the radial load from the piston rod to prevent it from bending or getting stuck.
Low-friction guidance: The inner wall slides and fits with the piston rod, resulting in low friction and wear resistance, ensuring smooth movement.
It is installed inside the end cover of the hydraulic cylinder and is a standard guiding component.
Common materials: Ductile iron (wear-resistant, strong load-bearing capacity)

D1	D2	d	M
45	36	20	M.39*1.5
50	41	20	M.44*1.5
50	41	25	M.44*1.5
55	46	25	M.49*1.5
55	46	30	M.49*1.5
60	51	20	M.54*1.5
60	51	35	M.54*1.5
65	56	30	M.59*1.5
70	61	30	M.64*1.5
70	61	45	M.64*1.5
75	64	35	M.69*1.5
75	64	40	M.69*1.5
80	66	35	M.70*1.5
80	66	45	M.70*1.5
85	71	35	M.74*1.5
85	71	50	M.74*1.5
90	76	40	M.80*1.5
90	76	50	M.80*1.5
95	81	35	M.85*2
95	81	40	M.85*2
95	81	50	M.85*2
95	81	60	M.85*2
100	86	45	M.90*2
100	86	50	M.90*2
105	91	40	M.95*2