Roller Followers - Non Separate

■ With seal ring, stainless steel type

Type			Roller Outer Diameter D	a	Roller Width B	B1	r	Basic Rated Load				Rail Load Capacity	Maximum speed (rpm)		Weight (g)
								C (dynamic) kN		Cor (static) kN
Type	Roller inner diameter d	Inner diameter tolerance						Standard type	High load type	Standard type	High load type	(kN)	Standard type	High load type	Standard type	High load type
E-NARTUS E-NARTVS	5	0 -0.008	16	12	11	12	0.15	2.66	3.92	2.74	6.14	0.86	14000	4760	14.5	15.1
	6		19	14				3.09	4.32	3.46	7.58	1.1	11200	3920	20.5	21.5
	8		24	17.5	14	15	0.3	4.86	6.24	5.37	11.48	1.49	9520	3080	41.5	42.5
	10		30	23.5			0.6	6.33	7.6	6.1	13.32	1.96	8400	2800	64.5	66.5
	12		32	25				6.7	7.76	6.77	15.09	2.19	7280	2520	71	73

■ Non-sealed type, bearing steel type

Type			Roller Outer Diameter D	a	Roller Width B	B1	r	Basic Rated Load		Track	Limit	Weight (g)
Type	Roller inner diameter d	Inner diameter tolerance						C (dynamic) kN	Cor (static) kN	Load capacity (kN)	Speed (rpm)
C-NARTR	5	0 -0.008	16	12.5	11	12	0.15	3.15	3.3	0.86	20000	15
	6		19	15				3.5	3.9	1.1	16000	21
	8		24	19	14	15	0.3	5.5	6.4	1.49	13600	42
	10		30	23			0.6	6.8	8.4	1.96	12000	66
	12		32	25				6.9	8.8	2.19	4500	73

 

The structure of the roller follower is designed to withstand radial loads. When subjected to axial loads, the side plate and outer ring may become detached or damaged. Therefore, during design and installation, it is important to minimize the occurrence of axial residual force.
As shown in diagram (1), non-separable roller followers are suitable for this scenario, while in diagram (2), separable roller followers are appropriate.

Note: When the side plate of a non-separable roller follower is subjected to axial force, it may shift or fall off. Please refer to the above diagram and select the appropriate model according to the application scenario.

■ Installation
When installing, make sure that the inner ring oil hole is not positioned in the load area; otherwise, it may shorten the service life to some extent.

■ Track load capacity
Track load capacity refers to the allowable load that the roller follower's outer ring can continuously withstand over a long period when in contact with the mating rail, without causing deformation or indentation of the rail.
The track load capacity listed in the parameter table is the value when steel with an applicable strength of 1.2 kN/mm² is used as the mating material. Therefore, when the hardness of the mating rail is not 40 HRC, the corresponding coefficient in the table below should be multiplied to obtain the correct allowable track load.


■ Dust Protection and Lubrication
1. The lubrication interval depends on operating conditions. As a general guideline, for standard types, replenish grease every 6 months to 2 years; for high-load types, replenish grease every 1 month to 6 months.
2. Even for products equipped with seals, excess grease may leak out during the initial operation phase or after replenishing the grease. If you wish to prevent grease from contaminating the area around the equipment, you can perform a trial run in advance and then wipe off any leaked excess grease.
3. As the usage time increases, the properties of the grease deteriorate and its lubricating performance decreases, so it is necessary to inspect and replenish the grease according to the frequency of use.

1. Do not disassemble any parts, as this may cause functional damage.
2. Do not drop or strike the roller follower. Otherwise, this may cause scratches or damage. Additionally, even if there is no visible damage after an impact, functional damage may still occur.