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RA

Thin Type
Separable Outer Ring
(Outer Dia. 80 - 226 mm)

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A compact type similar to model RB with the thinner inner and outer rings. Optimal for locations requiring a light-weight and compact design.

Integrated outer/inner ring version, RAU, is also available

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In stock

*Please contact THK if you need more than available quantity or out of stock items

Attributes	Part Number	CAD	Online Store Unit Price (USD)	Days to Ship	Inner Diameter (mm)	Outer Diameter (mm)	Width (mm)	Dust Protection Seal	Preload
Inner Diameter (mm): 80 Outer Diameter (mm): 96 Width (mm): 8 Dust Protection Seal: With Seal Preload: No Preload	RA8008UUC0	CAD	–	Back Order ? Contact us to get an ETA on shipping Contact Us	Inner Diameter (mm): 80	Outer Diameter (mm): 96	Width (mm): 8	Dust Protection Seal: With Seal	Preload: No Preload
Inner Diameter (mm): 80 Outer Diameter (mm): 96 Width (mm): 8 Dust Protection Seal: With Seal Preload: Preloaded	RA8008UUCC0	CAD	–	Days to Ship: 3 - 4 weeks	Inner Diameter (mm): 80	Outer Diameter (mm): 96	Width (mm): 8	Dust Protection Seal: With Seal	Preload: Preloaded
Inner Diameter (mm): 90 Outer Diameter (mm): 106 Width (mm): 8 Dust Protection Seal: With Seal Preload: Preloaded	RA9008UUCC0	CAD	–	Back Order ? Contact us to get an ETA on shipping Contact Us	Inner Diameter (mm): 90	Outer Diameter (mm): 106	Width (mm): 8	Dust Protection Seal: With Seal	Preload: Preloaded
Inner Diameter (mm): 100 Outer Diameter (mm): 116 Width (mm): 8 Dust Protection Seal: With Seal Preload: No Preload	RA10008UUC0	CAD	–	Days to Ship: 3 - 4 weeks	Inner Diameter (mm): 100	Outer Diameter (mm): 116	Width (mm): 8	Dust Protection Seal: With Seal	Preload: No Preload
Inner Diameter (mm): 140 Outer Diameter (mm): 156 Width (mm): 8 Dust Protection Seal: With Seal Preload: No Preload	RA14008UUC0	CAD	–	Days to Ship: 3 - 4 weeks	Inner Diameter (mm): 140	Outer Diameter (mm): 156	Width (mm): 8	Dust Protection Seal: With Seal	Preload: No Preload
Inner Diameter (mm): 180 Outer Diameter (mm): 206 Width (mm): 13 Dust Protection Seal: With Seal Preload: No Preload	RA18013UUC0	CAD	–	Days to Ship: 3 - 4 weeks	Inner Diameter (mm): 180	Outer Diameter (mm): 206	Width (mm): 13	Dust Protection Seal: With Seal	Preload: No Preload
Inner Diameter (mm): 200 Outer Diameter (mm): 226 Width (mm): 13 Dust Protection Seal: With Seal Preload: No Preload	RA20013UUC0	CAD	–	Days to Ship: 3 - 4 weeks	Inner Diameter (mm): 200	Outer Diameter (mm): 226	Width (mm): 13	Dust Protection Seal: With Seal	Preload: No Preload

Specifications


Shaft diameter	Model No.	Main dimensions							Shoulder height		Basic load rating		Mass
		Inner diameter d	Outer diameter D	Roller pitch circle diameter dp	Width B B₁	Greasing hole		r_min	ds (max)	Dh (min)	Radial
		Inner diameter d	Outer diameter D	Roller pitch circle diameter dp	Width B B₁	a	b	r_min	ds (max)	Dh (min)	Dynamicrating C	Staticrating C₀
		mm	mm	mm	mm	mm	mm	mm	mm	mm	kN	kN	kg
80	RA8008	80	96	87	8	2	0.8	0.5	83.5	90.5	6.37	11.3	0.11
90	RA9008	90	106	97	8	2	0.8	0.5	93.5	100.5	6.76	12.4	0.12
100	RA10008	100	116	107	8	2	0.8	0.5	103.5	110.5	7.15	13.9	0.14
140	RA14008	140	156	147	8	2	0.8	0.5	143.5	150.5	8.33	19.1	0.19
180	RA18013	180	206	192	13	2.5	1.6	0.8	185	199	24.5	49.8	0.68
200	RA20013	200	226	212	13	2.5	1.6	0.8	205	219	25.8	54.7	0.71

Model Number Coding

Model	Nominal shaft diameter (mm)	Width of ring (mm)	Seals^*1	Radial clearance^*2
RA	140	08	UU	C0

RA	80	08	UU	C0 : Positive Clearance
	90	13		CC0 : Preload
	100
	140
	180
	200

Note 1: Contamination protection seal UU is standard for Model RA Note 2: Radial Clearance

Units: µm
Pitch circle diameter of the roller (dp) (mm)		CC0		C0
Above	Or less	Min.	Max.	Min.	Max.
50	80	–8	0	0	15
80	120	–8	0	0	15
120	140	–8	0	0	15
140	160	–8	0	0	15
160	180	–10	0	0	20
180	200	–10	0	0	20
200	225	–10	0	0	20

The above selections are Online Store standards. If you need a selection that differs from the standard, please contact us at [email protected]