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XM-RKYR52/0.636160.K is a heavy‑duty V‑groove guide roller bearing of eccentric type. It has a 52mm outer diameter and 1 mm shaft eccentricity, and is built to perform reliably in high‑load linear motion systems.

Engineered for heavy‑duty performance, this unit combines a thick‑walled outer ring with double‑row tapered rollers to achieve superior radial and axial load capacity, strong shock resistance, and long service life in harsh environments. Pre‑lubricated and fitted with dual rubber seals (2RS), it performs reliably in dusty, oily, or high‑vibration working conditions.

It is extensively applied in automated logistics (stackers, AGVs), packaging machinery, CNC machine tools, truss robots, and woodworking/glass processing lines, guaranteeing precise guiding and stable rolling for heavy‑load linear conveying and positioning systems.

RKYR52 differs from RKY52 in that it is equipped with a built‑in eccentric shaft,all other dimensional specifications are the same.

RKY52,RKYR52,RKY62,RKYR62,RKY72,RKYR72,RKX90C,RKXR90C,RKX110C,RKXR110C  (RKY is 80°，RKX is 90°）

FKU115 Heavy‑Duty V‑Groove Guide Roller Bearing (No Bolt Shaft)The FKU115 is a high‑performance heavy‑load linear guide roller bearing designed as a direct replacement for NADELLA FKU115. Featuring a double row tapered roller structure and no bolt shaft design, it delivers exceptional radial and axial load capacity for heavy‑duty linear motion systems.

Brand: CNXM / High‑quality Chinese replacement
Type: V‑groove guide roller bearing (no bolt shaft)

Core Advantages:

No Bolt Shaft Design: Installed directly on a dedicated shaft, offering flexible mounting and compatibility with custom shafts.

Superior Load Capacity: Double row tapered roller design withstands heavy radial, axial, and impact loads in high‑speed linear motion systems.

Precision Alignment: Convex V‑groove outer ring reduces edge stress and compensates for minor track misalignment.

Durability: Blackened outer ring and GCr15 steel ensure excellent corrosion resistance and long service life in harsh industrial environments.

Interchangeability: Fully interchangeable with NADELLA FKU115 and compatible with RKU115 series (eccentric vs. concentric bolt).

Typical ApplicationsIdeal for heavy‑duty linear motion systems including:
Gantry machining centers, heavy machine tools, and rolling mills
Automated production lines, heavy conveyors, and robotic walking mechanisms
Metallurgical, mining, port machinery, and precision industrial equipment
High‑precision linear guide systems requiring heavy load support
This FKU115 bearing combines NADELLA‑equivalent performance with cost‑effective replacement options, making it the preferred choice for demanding heavy‑load linear guidance applications.

Parameters Values ​​| Description

Outer Diameter De:115mm | Maximum outer ring diameter

Inner Diameter d: 35mm | Inner ring bore diameter (compatible shaft diameter)

Total Width T: 33.5mm | Overall bearing thickness

Inner Ring Width m: 36mm | Inner ring axial width

Outer Ring Width B: 72mm | Outer ring axial width

Mounting Surface Width A: 60mm / 63mm | 60mm (standard) / 63mm (stainless steel NX version)

Flange Width F: 52mm | Inner ring flange width

Pin Hole Diameter d2: 4mm | Anti-rotation pin hole

V-groove Curvature R 400 | Outer ring V-groove convex surface radius

RKYR62 track roller bearing is engineered for superior performance and reliability. Designed as a bolt-type track roller with an outer diameter of 62mm, it features an M24 installation bolt and is specifically configured to match an 80° contact angle, ensuring smooth and stable operation in heavy-duty applications.
This bearing is fully compliant with the Danieli Code 0.263900.T standard, making it an ideal direct replacement or cost-effective alternative for original equipment. Crafted from premium GCr15 bearing steel, it offers exceptional load capacity, wear resistance, and a long service life, suitable for critical use in metallurgical machinery, port equipment, and automated industrial systems.

HPJA-62/HPJA62 flanged load runner / cam follower bearing. 62mm roller, 20mm bore, double row taper roller, sealed, non-relubricatable.

XM-RKY52 is a heavy‑duty V‑groove guide roller bearing (concentric type) with a 52mm outer diameter, designed for high‑load linear motion systems.

Built with double‑row tapered rollers and a thick‑walled outer ring, it delivers exceptional radial and axial load capacity, shock resistance, and long service life in harsh environments. Equipped with dual rubber seals (2RS) and pre‑lubricated, it suits dusty, oily, or high‑vibration conditions.

Widely applied in automated logistics (stackers, AGVs), packaging machinery, CNC machine tools, truss robots, and woodworking/glass processing lines, it ensures precise guiding and stable rolling for heavy‑duty linear conveying and positioning systems.

RKY52,RKYR52,RKY62,RKYR62,RKY72,RKYR72,RKX90C,RKXR90C,RKX110C,RKXR110C  (RKY is 80°，RKX is 90°）

HPVA Series V-Grooved Yoke Style Special Roller Bearings

HPVA-62 OD:90mm

HPVA-76 OD:110mm

HPVA-100 :OD140mm

HPVA-125: OD165mm

HPVA-150 OD:190mm

HPVA-200 OD:240mm

HPVA-250 OD:290mm

The HPVE Series are heavy‑duty metric cam follower track rollers engineered for precision linear guidance and heavy‑load conveying. Built with a precision V‑grooved outer race for stable rail alignment and radial‑axial load support, they feature an eccentric stud to easily adjust clearance and eliminate backlash.
Constructed from hardened bearing steel with robust double‑row ball or tapered roller bearings and dust‑proof seals, these rollers deliver high rigidity, wear resistance, and low maintenance. Suited for automation lines, machine tools, conveyors, solar trackers, and heavy industrial machinery, they offer reliable performance in demanding operating environments.

HPVE-26  M10x1

HPVE-32  M12x1.5

HPVE-40  M14

HPVE-62  M24

HPVE-62-1  M24x1.5

HPVE-76  M24x1.5

HPVE-100  M24x1.5

HPVE-125  M48

HPVE-62/0.636747.K is a heavy‑duty V‑grooved eccentric stud engineered for demanding industrial environments. Built to withstand high radial and axial loads, it delivers exceptional stability and load‑bearing performance under continuous stress. Equipped with an eccentric bolt, it enables precise vertical adjustment for accurate alignment and positioning during installation and operation. Robustly constructed for long service life, this component ensures reliable performance in heavy machinery, automation systems, material handling equipment, and other rigorous industrial applications where durability and precise adjustability are critical.

More item: HPVE-26,HPVE-32,HPVE-40,HPVE-62-1,HPVE-76,HPVE-100,HPVE-125

or HPVE26,HPVE32,HPVE40,HPVE62-1,HPVE76,HPVE100,HPVE125

HPV Series V-Grooved-Stud Style Rollers are heavy-duty cam followers designed for precise linear guidance and high-load applications. They feature a 90° V-grooved outer ring, concentric stud shaft, and double-row rolling elements to support combined radial, axial and impact loads. Manufactured from hardened high-grade bearing steel, these rollers ensure high rigidity, wear resistance and long service life.
The double-sided seals design provide effective protection against dust and moisture, enabling maintenance-free operation in harsh working environments.
Widely used in steel mills, cranes, automation lines, conveyor systems, construction machinery and machine tools, HPV series rollers offer reliable performance and direct interchangeability with standard international models.

HPV-26  M10x1

HPV-32  M12x1.5

HPV-40  M14

HPV-62  M24

HPV-62-1  M24x1.5

HPV-76  M30

HPV-100  M30

HPV-100-1  M30

HPV-125  M48

HPJE Series flanged eccentric‑stud rollers are expertly engineered to deliver superior track guidance and reliable load handling in heavy‑duty applications. 
Featuring premium rubber seals for excellent dust‑proofing, oil retention and contamination resistance, these rollers are factory pre‑lubricated to support long‑term, low‑maintenance operation. Supported by robust double‑row ball or tapered roller bearings, they offer outstanding radial and axial load capacity, smooth rolling motion and exceptional durability.
HPJE rollers ensure flexible mounting, broad compatibility and tailored fit for diverse equipment setups. Whether used in automated production lines, conveyors, machine tools, packaging machinery, lifting platforms or cam mechanisms, the HPJE Series delivers consistent performance, rugged reliability and adaptable design for the most demanding operating environments.

Changzhou Xuanmao Bearing professionally manufactures HPJA series flanged load runner / yoke type cam follower bearings. These heavy-duty bearings adopt double row taper roller structure, sealed & non-relubricatable, with high load capacity and precision. Our HPJA series is fully interchangeable with Osborn standard, suitable for automation, metallurgy, conveyor systems and various industrial equipment. As a professional manufacturer, we provide reliable quality, stable performance and competitive pricing for global customers.

Flanged Yoke Style(Metric) load runner consist of items such as

HPJA-62/HPJA62
HPJA-76/HPJA76
HPJA-80/HPJA80
HPJA-85/HPJA85
HPJA-90/HPJA90
HPJA-100/HPJA100
HPJA-125/HPJA125
HPJA-150/HPJA150