XA Series Externally Geared Cross Roller Slewing Bearings

XA is an externally geared cross roller slewing bearing series. Selection therefore includes both the bearing arrangement and the gear interface. Compare the complete model, bolt pattern and gear data before treating another designation as an alternative.

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Need this model? Request a XA Series Externally Geared Cross Roller Slewing Bearings quotation and drawing or email us directly — LYDL replies within one working day.

Selecting XA slewing bearings

Bearing envelope and mounting-hole layout
Gear module, tooth count, pinion and backlash requirement
Combined bearing loads, gear force and supporting-structure stiffness

Use XI to compare an internally geared arrangement and XU for a gearless reference arrangement. Compare the related series.

Individual model pages are being added. Use the series table or send the complete model number and drawing for review.

XA series tables

Read all dimensions against the matching drawing. Blank values mean unspecified, not zero. Reference numbers do not establish full interchangeability.

Basic model	Weight	Mounting dimensions								Gear parameter				Drawing
Basic model	Kg	Da	di	La	na	dB	Li	H	h	b	do	m	z	—
XA120235N	13	318.8	171	275	12	13	195	40	35	35	312	4	78	Drawing
XA180309N	30	408.4	235	359	24	13	259	60	52.5	52.5	400	5	80	Drawing
XA160407N	33	503.3	335	455	30	13	359	50	45	45	495	5	99	Drawing
XA260475N	64	598.2	382	540	36	16	410	65	60	60	588	6	98	Drawing
XA140540N	39	640.3	471	585	40	13	495	48	41	41	630	6	105	Drawing
XA260560N	90	708	456	624	28	18	496	68	61	61	690	10	69	Drawing
XA240574N	84	695	480	640	18	18	508	77	42	42	685	5	137	Drawing
XA160596N	63	712.3	510	650	24	18	542	55	48	48	702	6	117	Drawing
XA140640N	50	742.3	571	685	44	13	595	50	43	43	732	6	122	Drawing
XA240685N	115	830.1	577	753	24	22	617	68	61	61	816	8	102	Drawing
XA200720N	87	844.3	630	780	30	18	662	59	52	52	834	6	139	Drawing
XA140753N	65	862.3	674	800	28	18	706	50	43	43	852	6	142	Drawing
XA200810N	158	964	730	870	24	18	762	90	73	73	944	8	118	Drawing
XA200818N	100	940.1	728	875	36	18	760	60	53	53	930	6	155	Drawing
XA280845N	200	1008	730	920	40	22	770	87	80	80	990	10	99	Drawing
XA220895N	145	1038.1	790	960	32	22	830	68	61	61	1024	8	128	Drawing
XA280995N	212	1158	882	1068	40	22	922	83	73	73	1140	10	114	Drawing

Reference illustrations

LYDL XA externally geared cross roller slewing bearing cross-section with mounting holes, seals, lubrication fitting and dimension symbols — XA externally geared cross roller slewing bearing structure reference. Confirm ring, gear and mounting dimensions on the selected model drawing. Select the image to view the full-size drawing.

Drawing and reference information

Ring segmentation and gear geometry must follow the model drawing. The existing table contains outside diameters beyond 540 mm, so the former generic size limit is not used.

Technical reference: Schaeffler slewing ring catalogue 404. Brand names identify reference families only. Supplied LYDL dimensions, tolerances, load ratings and acceptance requirements are defined by the drawing and quotation agreed for the order.

Request a drawing or quote with the complete model, quantity, loads, speed, duty cycle and mounting requirements.