FKU Series Track Rollers

The FKU series was originally developed by Nadella (an Italian expert in heavy-duty linear motion and roller bearings) as a line of heavy-duty tapered roller track bearings. These bearings are designed for high load capacity, high precision, and long service life, and are widely used in metallurgy, logistics, heavy machinery, and other industrial sectors. Changzhou XuanMao Bearings currently produces alternative products. CNXM Brand.

Core Positioning and Structure

- Brand: CNXM, a professional manufacturer of heavy-duty linear motion bearings and roller bearings.

- Type: Tapered roller raceway bearing with a convex outer ring raceway (R=400mm), suitable for heavy-duty, impact, and eccentric load conditions.

Structural Features:

- Double row or full complement roller bearings, providing high radial and axial load capacity and capable of withstanding overturning moments.

- Inner ring with cylindrical bore or internal thread, compatible with bolted shafts (e.g., RKUR, RKU series).

Product Models:

FKU55 FKU65 FKU75 FKU95 FKU115

RKU55 RKU65 RKU75 RKU95 RKU115

RKUR55 RKUR65 RKUR75 RKUR95 RKUR115

Product Detail

Remark

product detail

FKU Series Track Rollers:mm
Designation	Boundary Dimensions									Dynamic Load (N)	Weight (kg)
Designation	De	d	T	m	A	B	F	d_₂⁽⁴⁾	M	Dynamic Load (N)	Weight (kg)
FKU 55	55	15	14.6	21.0	35	42	25	3	30	41650	0.5
FKU 65	65	20	18	23	37	45	29	3	35	46800	0.6
FKU 75	75	25	23.7	28.0	45	56	37	4	44	66700	1.2
FKU 95	95	28	25.5	32.0	53/56⁽²⁾	64	42	4	49	116800	2.3
FKU 115	115	35	33.5	36.0	60/63⁽²⁾	72	52	4	59	182450	3.9

Remark

1)Stainless steel material (suffix NX) is available upon request. When the operating temperature reaches 120°C, the rollers need to use air rubber seals (suffix V) to meet operating requirements.(Excluding roller FKU 115).

2)Structural dimensions of stainless steel (suffix NX) roller.