Fknn (2RS) Ball Bearing Freewheel Clutch

• Model: Fknn 6204-2RS
• Inner Diameter: 20mm
• Outer Diameter: 47mm
• Width: 14mm
• Torque: 60nm
• Rotation Speed: 3200rpm
• Model NO.: FKNN 6204-2RS
• Weight: 0.12kg
• OEM: Accept
• Precision: P6
• Transport Package: Single Box
• Specification: P6
• Trademark: SUMA or OEM
• Origin: Changzhou
• HS Code: 84836000
• Production Capacity: 10000PCS/Year

Product Description

                            Ball Bearing Freewheel Clutch Unit FKNN (2RS)

Dimensions
Dimensions in accordance with bearing series 62 (DIN 625)

Width
12 / 14 / 15 / 16 / 17 / 18 mm
Operating temperature
max. 140°C
Higher temperatures on request
max. 110°C (design 2RS with RS seals)

Lubrication
Series FKNN 2RS with seals
Operative lifetime grease lubrication
Series FKNN without seals
Oil or grease lubrication
Delivered with corrosion protection.

Installation
Installation tolerances
Shaft n6; hub N7
 
Mating parts
Hardening and grinding of the mating parts is not necessary. Thoroughly clean (grease free) the mating parts in the vicinity of the freewheel clutch as well as the freewheel clutch's rings before making the press fit.
 
Bearing
The freewheel clutch includes ball and roller bearings. Additional external bearing support is not necessary.
 
Press fit pressure                   
Press fit pressure must not be applied to the balls.
 
Clamping direction
The arrow on the inner ring designates the inner ring's clamping direction.
 
Seals*
The RS Seals reliably seal out grease and dust but are not suitable
to protect against permanent higher liquid levels.
Series FKNN 6203-RS has an RS seal on one side only
(RS Seal on the freewheel side).

Data
Drawing legend:
d = inner diameter D = outer diameter W = width r = edge radius b = keyway width IR t = keyway depth IR T = torque n = rotation speed C = load capacity

Designation	d	D	W	r	b	t	B¬or	Tor	Tnom	nmax	Cdyn.	Cstat.	Weight	Item no.
	[mm]	[mm]	[mm]	[mm]	[mm]	[mm]	[mm]	[mm]	[N m]	[rpm]	[N]	[N]	[kg]
FKNN 6203	17	40	12	1	5	12	2	1	53	10,800	6,245	3,441	0.07	305989
FKNN 6203-RS	17	40	12	1	5	1.2	2	1	53	3,700	6,245	3,441	0.07	305990
FKNN 6204	20	47	14	1.5	6	1.6	1.6	1.5	60	7,500	6,869	4,268	0.12	305992
FKNN 6204-2RS	20	47	14	1.5	6	1.6	1.6	1.5	60	3,200	6,869	4,268	0.12	305993
FKNN 6205	25	52	15	1.5	8	2	2	2	104	5,400	7,448	5,146	0.14	305996
FKNN 6205-2RS	25	52	15	1.5	8	2	2	2	104	2,800	7,448	5,146	0.14	3055998
FKNN 6206	30	62	16	1.5	8	2	2	2	148	5,100	7,859	6,066	0.22	306984
FKNN 6207-2RS	30	62	17	1.5	8	2	2	2	148	2400	7.859	6.066	0.32	305999
FKNN 6208	40	80	18	1.5	12	3.3	3.3	3	267	3,700	8,902	7,752	0.44	3.6004
FKNN 6208-2RS	40	80	18	1.5	12	3.3	3.3	3	267	1,900	8,902	7,752	0.44	306005
FKNN 6304-2RS	20	52	15	1.5	6	2	2	2	104	2800	7.448	5.146	0.15	306137

All specifications for series FKNN 2RS (with seals) and series FKNN (without seals)
The specified nominal torque is based on sufficient stiffness of mating parts.
Rotation speed n for series FKNN (without seals) = assembly unit's inherent speed
Rotation speed n for series FKNN 2RS (with seals) = speed difference of mating parts.