Oilfield drilling Quenched&Tempered Q235B Steel LBS Split Drum Sleeve Lebus Groove Drum Wrap

Oilfield drilling Quenched&Tempered Q235B Steel LBS Split Drum Sleeve Lebus Groove Drum Wrap Description

Engineered as a wear-resistant replacement liner, this LBS grooved split sleeve is manufactured from Q235B structural steel and specifically designed for wire rope management in heavy lifting systems. Through a quenching and tempering process, the sleeve attains a surface hardness of HRC58-62, providing outstanding resistance to abrasion from continuous rope contact. Precision machining to IT11 accuracy and a fine surface finish of Ra0.8μm guarantees exact groove geometry and smooth rope travel. The two-piece split design allows quick installation or replacement without dismantling the entire drum, greatly cutting downtime during maintenance in severe operating conditions.

Oilfield drilling Quenched&Tempered Q235B Steel LBS Split Drum Sleeve Lebus Groove Drum Wrap Dimension

Oilfield drilling Quenched&Tempered Q235B Steel LBS Split Drum Sleeve Lebus Groove Drum Wrap Features

What sets this split sleeve apart is the heat treatment applied to standard Q235B steel. Quenching and tempering raises surface hardness to HRC58-62, converting a common structural material into a high-wear component capable of withstanding aggressive rope friction over extended periods. The IT11 tolerance level guarantees that groove profiles remain consistent with the wire rope diameter, reducing both friction and the risk of uneven wear. A Ra0.8μm surface finish further lowers friction at the contact interface, helping to prolong rope service life. Additionally, the split geometry permits mounting onto a bare drum without disturbing bearings or shafts, turning field replacement into a practical, low-downtime maintenance operation.

Oilfield drilling Quenched&Tempered Q235B Steel LBS Split Drum Sleeve Lebus Groove Drum Wrap Application

This LBS grooved split sleeve is built for demanding environments such as marine winches, offshore platform cranes, and industrial hoists where rope management directly affects operational safety and equipment availability. Its hardened surface layer proves especially valuable in multi-layer winding scenarios where continuous, abrasive rope-to-groove contact is unavoidable. Typical use cases include port container spreaders, shipboard deck machinery, and mine hoisting systems. The split design allows maintenance crews to restore spooling accuracy simply by exchanging the worn sleeve, leaving the original drum intact indefinitely. For OEMs and fleet owners seeking a cost‑effective, durable solution that does not sacrifice performance, this precision‑machined sleeve delivers consistent, long‑lasting service in the field.

Hebei Junke Machinery Techonlogy Co., Ltd was established in 2010. Now it is located in Shijiazhuang city, Hebei province, China. Our company covers more than 10000 square meters and it has very convenient transportation. There are more than 300 existing staff members  among who are 100 profressional technicists. We also have skilled workers and advanced processing equipments.

Our factory has more than 2000 sets of casting, forging, gear machining, sheet metal stamping, welding, heat treatment,machining and other advanced equipments. In recent years, we have introduced 80 machines of Germany CW1000 processing center, CNC four axis,five-axis linkage machining center, CNC punching machine,large CNC gear hobbing gear grinding machine, large CNC floor-type boring and milling machine, vacuum electron beam welding, CNC welding robots and other advanced processing equipments.

Our factory always adhere to business idea of "Honesty and Credibility＆Customer First". With high reputation, high quality products and a competitive price policy ,we provide our customers with satisfactory services.

We hope to establish long-term and stable business cooperation with domestic and foreign customers!