Self-aligning bearing housing

Japanese standard

UC

Caution, prices written into the "€" column are your discount prices (if you are connected), or the general public prices (if you are not).

Catalog » Bearing And Ball Bearing Units NSK » Japanese standard » UC self-aligning bearing housing

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Specification
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Note: by default, the discount code applied on the site is the 01 or 09 code.
Should you choose products with a discount code 08 in quantities higher than the minimum, the discount will be reversed to you on the final invoice.
*For quantities below the minimum: the discount code applied will still be 01.

The last letter of the code (N or R) corresponds to the manufacturer identification.

200 series
Code	Stk	€	Discount Code	Min. qty *	Dimensions (mm)				Base load (kN)
Code	Stk	€	Discount Code	Min. qty *	Shaft Ø	D	C	B	Dyn. C	Stat. Co
UC201N		33,75	01	-	12	47	17	31.0	12.8	6.60
UC202N		33,75	01	-	15	47	17	31.0	12.8	6.60
UC203N		33,75	01	-	17	47	17	31.0	12.8	6.60
UC204N		33,75	08	20	20	47	17	31.0	12.8	6.60
UC205N		41,46	08	20	25	52	17	34.1	14.0	7.85
UC206N		47,68	08	20	30	62	19	38.1	19.5	11.3
UC207N		57,28	08	20	35	72	20	42.9	25.7	15.3
UC208N		68,66	08	20	40	80	21	49.2	29.1	17.9
UC209N		77,17	08	10	45	85	22	49.2	31.5	20.4
UC210N		87,33	08	10	50	90	23	51.6	35.0	23.2
UC211N		112,76	01	-	55	100	24	55.6	43.5	29.3
UC212N		143,42	01	-	60	110	27	65.1	52.5	36.0
UC213N		166,17	01	-	65	120	28	65.1	57.5	40.0
UC214N		216,60	01	-	70	125	29	74.6	62.0	44.0
UC215N		249,26	01	-	75	130	30	77.8	66.0	49.5
UC216N		296,75	01	-	80	140	32	82.6	72.5	53.0
UC217N		356,08	01	-	85	150	34	85.7	84.0	62.0
UC218N		457,01	01	-	90	160	36	96.0	96.0	71.5

300 series
Code	Stk	€	Discount code	Dimensions (mm)				Base load (kN)
Code	Stk	€	Discount code	Shaft Ø	D	C	B	Dyn. C	Stat. Co
UC305N		83,36	09	25	62	22	38	20.6	11.2
UC306N		99,39	09	30	72	24	43	26.7	15.0
UC307N		115,05	09	35	80	26	48	33.5	19.2
UC308N		139,15	09	40	90	28	52	40.5	24.0
UC309N		159,48	09	45	100	30	57	53.0	32.0
UC310N		192,05	09	50	110	32	61	62.0	38.5
UC311N		240,89	09	55	120	34	66	71.5	44.5
UC312N		276,88	09	60	130	36	71	82.0	52.0
UC313N		348,65	09	65	140	38	75	92.5	60.0
UC314N		409,64	09	70	150	40	78	104	68.0
UC315N		485,21	09	75	160	42	82	113	77.0
UC316N		589,81	09	80	170	44	86	123	86.5
UC317N		653,72	09	85	180	46	96	133	97.0
UC318N		769,93	09	90	190	48	96	143	107
UC319N		877,42	09	95	200	50	103	153	119
UC320N		1 176,64	09	100	215	54	108	173	141
UC321N		1 228,51	09	105	225	56	112	184	154
UC322N		1 467,18	09	110	240	60	117	205	179
UC324N		1 984,34	09	120	260	64	126	207	185
UC326N		2 669,99	09	130	280	68	135	229	214
UC328N		3 166,80	09	140	300	73	145	253	246

Our range of Self-Lube® housings offers a wide choice of cast-iron or pressed steel bodies, equipped with the entire Self-Lube® bearing range with a spherical external diameter.

The main types of body are:

- Plummer block housing
- Flanged housings
- Take-up housings
- Cartridges and connecting rod ends

The choice of housing is closely linked to its use characteristics but the aesthetic appearance of the machine is often an equally decisive element. Our Self-Lube® housings have been designed, taking both elements into account.

The bodies are made of high-quality cast iron, as per BS1452; all non-machined surfaces are painted with an enamel electrostatic paint that dries in the air.

The metal bodies are made of soft steel as per BS1449 and are galvanised.

	Self-Lube® protectors Our protectors are designed to protect the operator from the danger represented by the rotating shaft ends and also to avoid deposits forming on the outer surfaces of the bearing. Protectors are made of good quality soft steel, covered with enamel paint, making them robust, attractive and durable. They are easy to assemble and can be removed without damage as many times as necessary. The two protector claws slot into the groove of standard bearings. This reliable fastening device allows for mounting without any additional fastener required.
	Locking screw This locking system consists of two socket head locking screws positioned in the part extending beyond the inner ring. For normal loads and moderate speeds, the bearing is simply put in position and the screw tightened to the recommended torque. As an additional security measure, the shaft can be counterbored to receive the tip of the screw.
	Eccentric clamp collar. A machined eccentric on the extension of the bearing inner ring fits into a similar steel clamp collar eccentric. It is locked in position by turning the collar in the shaft rotation direction until the cam effect locks the collar onto the shaft. The socket head screw maintains the assembly in this position.
	Tapered adaptor sleeve This locking system consists of a tapered sleeve, bolt and a lockwasher and is recommended when concentric tightening on the shaft is necessary. When the bearing is mounted on the shaft, care must be taken to ensure the bolt is not too tight to avoid eliminating internal clearance and causing premature wear of the bearing. The purpose of the lockwasher is to prevent the bolt from becoming loose.

Mounting precaution

It is essential to fix the housing in its final position on the machine frame and immobilise it in this position in relation to the rotating part before the inner bearing ring is tightened on the shaft.

Remove the socket head screws from the bore before inserting the shaft, which should be clean and chamfered.

Be careful not to strike the inner ring or body with a hammer and only apply mounting force on the inner ring. Once mounted, the bearing should rotate freely and effortlessly.

Cast iron housings should be arranged so that they operate in compression and not tension. Moreover, they should not be used in the event of reversible or pulse force.

In the event of considerable distance between housings, temperature variations may lead to dilatation phenomena that should be carefully studied.

Particularity of tapered bore mounts.

1 - Fix the housing onto the machine frame and ensure there are no traces of grease or oil on the shaft or in the tapered sleeve bore

2 - Position the shaft and hand-tighten the bolt
If the sleeve turns on the shaft, tap the tapered sleeve slightly to slide it into the bearing bore to ensure correct grip.

3 - Finish tightening the bolt by striking it with a punch and light hammer.

4 - Check that the shaft rotates freely to ensure internal clearance has not been eliminated and there are no constraints.

5 - Finally, lock the bolt with one of the lockwasher teeth.

6 - After 100 hours of service, bolt tightness should be checked.

Technical drawing of bearing