What are the benefits of using toothless cross roller bearings in precision machinery?

Toothless cross roller bearings offer high radial stiffness and accuracy, which are crucial for precision machinery. They also provide low friction operation, leading to energy efficiency and smoother movement. The sealed design protects against contaminants, ensuring consistent performance over time.

How do I choose the right size of toothless cross roller bearing for my application?

Selecting the appropriate size involves considering the load requirements, speed, and space constraints of your application. It's essential to consult with bearing manufacturers or use sizing software that takes into account these factors to determine the correct bearing size for optimal performance.

Cross Roller Bearing (Toothless)

High Precision Toothless Cross Roller Bearing

Our toothless cross roller bearings are engineered for applications requiring high precision and minimal friction. These bearings are commonly used in industries such as robotics, aerospace, and heavy machinery where reliability and performance are paramount. With a chrome steel construction and P4 precision rating, our bearings offer a robust solution for demanding environments.

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XSU Series Cross Roller Bearing

Model	Inner d(mm)	Outer D(mm)	Width B(mm)	Mounting Hole Qty.	Min Radius r_min(mm)	Axial Dynamic Ca(kN)	Axial Static C0a(kN)	Radial Dynamic Cr(kN)	Radial Static Cor(kN)	Limit Speed(r/min)	Weight(kg)
XSU080168	130	205	25.4	12	1.1	66	240	42	96	227	3.3
XSU080188	150	225	25.4	16	1.1	71	275	46	110	203	3.7
XSU080218	180	225	25.4	20	1.1	77	315	49	127	175	4.3
XSU080258	220	295	25.4	24	1.5	84	375	54	151	148	5.1
XSU080318	280	355	25.4	28	1.5	93	465	59	185	120	6.3
XSU080398	360	435	25.4	36	2	106	590	68	236	96	7.8
XSU140414	344	484	56	24	2	229	520	146	250	-	28
XSU140544	474	614	56	32	2.5	270	680	170	330	-	38
XSU140644	574	714	56	36	2.5	290	800	185	395	-	44
XSU140744	674	814	56	40	3	315	930	200	455	-	52
XSU140844	744	914	56	40	3	340	1050	215	510	-	60
XSU140944	874	1014	56	44	3	360	1170	227	580	-	67

XU Series Single-Row Crossed Roller Slewing

Model	Bore d (mm)	OD D (mm)	Roller PCD dp (mm)	Width B (mm)	Outer Hole PCD φLa	Outer Holes na	Inner Hole PCD φLi	Inner Holes ni	Ca (kN)	C0a (kN)	Cr (kN)	C0r (kN)	Weight (kg)
XU050077	40	112	77	22	97	6-φ6.6	56	6-M8	22.4	29	14.3	14.2	1.4
XU060094	57	140	94	26	120	6-φ9	70	6-M8	32.5	37.5	20.7	18.4	2.4
XU060111	76.2	145.79	111	15.87	133.1	8-φ6.9	88.9	8-φ6.9	36	44.5	22.8	21.5	1.2
XU080120	69	170	120	30	148	6-φ9	90	6-M8	56	53	35.5	26	4
XU080149	101.6	196.85	149.6	22.22	177.8	16-φ6.9	115.8	16-φ6.9	63	66	40	32.5	3.6
XU120179	124.5	234	179	35	214	12-φ11	144.5	12-φ11	118	179	75	88	7
XU120222	140	300	222	36	270	12-M16	170	12-φ18	133	275	85	131	12
XU160260	191	329	260	46	305	20-φ14	215	20-φ14	212	350	135	173	16
XU080264	215.9	311	264	25.4	295.3	12-φ8.7	231.8	12-φ8.7	85	117	54	57	6.9
XU160405	336	474	405	46	450	30-φ14	360	30-φ14	270	550	172	270	25
XU080430	380	480	430	26	462	20-φ9	398	20-M10	110	280	70	138	12
XU300515	384	646	515	86	598	18-φ26	432	18-φ26	720	1370	455	670	115

Why Choose Toothless Cross Roller Bearings for Precision Applications?

Cross roller bearings, toothless variety, are known for their ability to support combined loads of high precision and minimal friction. They are typically used in applications where high radial stiffness and accuracy are required, such as in precision positioning tables, machine tools, and automation equipment. The chrome steel material ensures durability and resistance to wear, while the P4 precision rating guarantees high rotational accuracy.

These bearings are designed to operate in a wide temperature range, making them suitable for both indoor and outdoor machinery. The sealed design with rubber or metal provides protection against contaminants, which is crucial for maintaining performance in harsh industrial environments.

Compared to other bearing types, toothless cross roller bearings offer superior load-carrying capacity and stiffness. This makes them ideal for heavy-duty machinery where high loads and precision are critical. Their compact design also allows for space-saving solutions in machine design.