Precision Rotary Turntable Bearings

High-precision rotary turntables

Industrial slewing rings are already considered precision bearings, but some applications have even more exacting demands.

For these situations we offer the QCB PRECISION RANGE, which consists of the following:-

CRB, CRBH and RU Crossed roller series

Precision Slewing Ring Series – each bearing tested and certified at source

ZKLDF Series Axial angular contact ball bearing Suitable for high speeds High axial and radial load capacity with high rigidity Sealed, suitable for use in rotary tables, milling & grinding heads and test equipment

Imported to order only

Enquire Now

Got a project that demands precision?

Our engineers design, manufacture, and supply components to your exact specification. Contact us to discuss your project.

Get In Touch

Product Overview

QCB offers a full range of rotary table bearings equivalent to INA YRT, YRTS and ZKLDF series.

YRT & YRTS Series

YRT Series is suitable for slow and limited-duration operations The YRTS Series has higher limiting speeds and low, uniform torque across the speed range and is thus suitable for use with torque motors. Double-direction axial bearing with a radial guide roller Predrilled and ready to fit A rigid and accurate bearing system supports axial, radial and moment loads Axially and radially preloaded after installation Unsealed: Available in P5, P4 and P2 precision grades in diameters from 70 – 1800mm diameter Imported to order only

Imported to order only

Dimensions

Enquire Now

Enquire Now About Precision Rotary Turntable Bearings

For any enquiries regarding Precision Rotary Turntable Bearings, please complete our enquiry form, and a member of our technical team will respond promptly. Alternatively, you can reach out directly to one of our offices using the contact details here. Our specialists are ready to provide guidance and support tailored to your machinery and engineering needs.

	Boundary dimensions
	ID	OD	H	H1	C	d1	dn	dm
	ID	OD	H	H1	C	d1	dn	dm
YRT 50	50	126	30	20	10	105	63	116
YRT 80	80	146	35	23.35	12	130	92	138
YRT 100	100	185	38	25	12	160	112	170
YRT 120	120	210	40	26	12	184	135	195
YRT 150	150	240	40	26	12	214	165	225
YRT 180	180	280	43	29	15	244	194	260
YRT 200	200	300	45	30	15	274	215	285
YRT 260	260	385	55	36.5	18	345	280	365
YRT 325	325	450	60	40	20	415	342	430
YRT 395	395	525	65	42.5	20	486	415	505
YRT 460	460	600	70	46	22	560	482	580
YRT 580	580	750	90	60	30	700	610	720
YRT 650	650	870	122	78	34	800	680	830
YRT 850	850	1095	124	80.5	37	1018	890	1055
YRT 950	950	1200	132	86	40	1130	990	1160
YRT 1030	1030	1300	145	92.5	40	1215	1075	1255
YRT 1200	1200	1490	164	108	52	1410	1240	1445
	Dimensions in mm

	Fixing holes						#	G
	Inner ring				Outer ring			Extraction	#G
	do	ds	Ts	ni	dL	na	Screws	Screws
YRT 50	5.6	9	4.2	12-2	5.6	12	2	–	–
YRT 80	5.6	10	4.2	12-2	4.6	12	2	–	–
YRT 100	5.6	10	5.4	18-2	5.6	18-3	2	M5	3
YRT 120	7	11	6.2	24-2	7	24-3	2	M8	3
YRT 150	7	11	6.2	36-2	7	36-3	2	M8	3
YRT 180	7	11	6.2	48-2	7	48-3	2	M8	3
YRT 200	7	11	6.2	48-2	7	48-3	2	M8	3
YRT 260	9.3	15	8.2	36-2	9.3	36-3	2	M12	3
YRT 325	9.3	15	8.2	36-2	9.3	36-3	2	M12	3
YRT 395	9.3	15	8.2	48-2	9.3	48-3	2	M12	3
YRT 460	10	15	8.2	48-2	10	48-3	2	M12	3
YRT 580	11.4	18	11	48-2	11.4	48-6	2	M12	6
YRT 650	14	20	13	48-2	14	48-6	2	M12	6
YRT 850	18.5	26	17	60-3	18.5	60-6	3	M16	6
YRT 950	18.5	26	17	60-3	18.5	60-6	3	M16	6
YRT 1030	18.5	26	17	72-6	18.5	72-6	6	M16	6
YRT 1200	18.5	26	17	72-6	18.5	72-6	6	M16	6
	Dimensions in mm

	Bolt torque MA	Basic load ratings				Limit speed (grease)	Friction torque	Weight
	Bolt torque MA	Ca	Coa	Cr	Cor	Limit speed (grease)	Friction torque	Weight
	Nm	KN				rpm	Nm	kg
YRT 50	8.5	38	158	28.5	49.5

Precision Rotary Turntable Bearings

YRT Series Dimensions

Boundary dimensions

Fixing hole data

Load ratings