Precision Crossed Roller Bearings

BRE Series Crossed Roller Bearings

BRE series Crossed Roller Bearings are ultra-compact, high-precision motion solutions designed to maximize space efficiency without compromising performance. With an orthogonal 90° roller arrangement, these bearings simultaneously support radial, axial, and moment loads. Their high-rigidity design is optimized for industrial robotics, CNC rotary tables, and medical devices, ensuring stable and reliable rotation in demanding precision environments. Interchangeable with mainstream RE type crossed roller bearings for industrial robots, rotary tables and precision automation systems.

Equivalent: Compatible with RE Series Crossed Roller Bearings

Inner Ring Diameter(shaft diameter)：40mm——600mm

Precision Class: P5/P4/P2

Basic Load Rating(radial): 8.33kN——264kN

Delivery time: In Stock

What is BRE series Crossed Roller Bearings?

The BRE series Crossed Roller Bearings represent a sophisticated motion control solution engineered for applications where high rotational accuracy and space-saving efficiency must coexist. This series is characterized by its unique internal geometry: cylindrical rollers are arranged orthogonally—crossing each other at 90° angles—within a single, precision-ground V-groove raceway.

Engineered by BYBearings, the BRE series Crossed Roller Bearings are specifically designed with a compact profile, accommodating shaft diameters from 40mm to 600mm. This series is widely recognized for its integrated structure, which allows a single bearing to handle radial, axial, and moment loads simultaneously, effectively replacing more complex multi-bearing arrangements.

Features of BRE series Crossed Roller Bearings

BYBearings manufactures the BRE series Crossed Roller Bearings with meticulous attention to detail, ensuring the following industry-leading advantages:

Exceptional Rotational Accuracy: With manufacturing standards reaching P5, P4, and ultra-precision P2 grades, these bearings ensure minimal runout for the most sensitive precision tasks.

High Load-Carrying Capacity: Despite their streamlined design, the BRE series Crossed Roller Bearings offer impressive basic radial load ratings ranging from 8.33kN to 264kN.

Superior Rigidity: The orthogonal roller arrangement provides linear contact with the raceway, ensuring the bearing remains rigid and stable under complex tilting loads.

Compact & Lightweight: The optimized structure allows for a smaller mechanical footprint without sacrificing structural integrity, ideal for modern robotic and automation designs.

Smooth and Stable Rotation: Precision-ground tracks and high-quality rollers ensure low frictional torque and consistent rotational performance.

Applications of BRE series Crossed Roller Bearings

Because of their high precision, versatility, and compact nature, BRE series Crossed Roller Bearings from BYBearings are widely used in:

Industrial Robotics: Providing high-precision motion for the joints of collaborative robots (cobots) and industrial robotic arms.

CNC Precision Rotary Tables: Enabling accurate indexing and smooth rotation for machining centers and laser cutting equipment.

Medical Diagnostic Devices: Used in high-end imaging systems and surgical robots where reliability and silent operation are critical.

Precision Measurement Systems: Ensuring the stability and accuracy of professional testing equipment and optical sensors.

Automation Components: Applied in indexing drives and high-precision gearbox systems where space is at a premium.

Techspecs of BRE series Crossed Roller Bearings

The BRE series Crossed Roller Bearings from BYBearings are built to the following technical standards:

Shaft Diameter (d): Wide range accommodating shafts from 40mm up to 600mm.

Precision Classes: Available in P5, P4, and P2 grades to meet various industrial accuracy requirements.

Radial Load Performance: Basic radial load ratings of 8.33kN to 264kN.

Material Excellence: Crafted from high-purity GCr15 bearing steel with advanced heat treatment for maximum fatigue life.

Availability: Most standard BRE series Crossed Roller Bearings models are In Stock, ensuring rapid deployment and minimized downtime.

How does BRE series Crossed Roller Bearings work?

The mechanical efficiency of the BRE series Crossed Roller Bearings lies in the 90° V-groove geometry. In the BRE series Crossed Roller Bearings, the rollers are alternatingly crossed, effectively acting like two rows of bearings compressed into a single track. When an axial force pushes from the top, half the rollers take the load; when a radial force or a moment load tries to tilt the axis, the other half stabilize the system. This unique configuration allows the BRE series Crossed Roller Bearings to maintain absolute center-point stability under fluctuating combined forces.

How to Install BRE series Crossed Roller Bearings

Proper installation is the key to unlocking the full potential of BYBearings' precision design. Follow these professional steps:

Pre-Installation Cleaning: Thoroughly clean the mounting surfaces and ensure the shaft and housing are free of burrs or contaminants.

Precision Alignment: Carefully align the bearing with the mounting interface to prevent tilting during the assembly process.

Sequential Fastening: If the model includes mounting holes, use a torque wrench to tighten bolts in a diagonal "star" pattern in incremental stages for even pressure.

Operational Testing: After installation, rotate the assembly manually to ensure the BRE series Crossed Roller Bearings operate smoothly with consistent torque.

Price of BRE series Crossed Roller Bearings

The pricing structure for the BRE series Crossed Roller Bearings is determined by the specific requirements of your project:

Dimensional Scale: Larger bore diameters (up to 600mm) require more material and precision grinding time.

Accuracy Grade Requirements: Ultra-precision P2 models involve more intensive quality validation than P5/P4 grades.

Industrial Order Volume: BYBearings provides substantial cost-per-unit reductions for large-scale industrial orders and wholesale partnerships.

In-Stock Advantage: Ready availability of standard models ensures the best market value and faster project turnaround.

Supplier of BRE series Crossed Roller Bearings

BYBearings is a nationally recognized High-Tech Enterprise dedicated to the integrated design, development, manufacturing, and global sales of high-precision bearings. As an industry leader, we maintain a state-of-the-art production facility where every BRE series Crossed Roller Bearings unit is crafted using advanced proprietary technologies and rigorous quality control protocols. By managing the entire lifecycle from initial R&D to final distribution, BYBearings ensures that our BRE series Crossed Roller Bearings deliver unmatched reliability and performance. Our commitment to innovation and excellence makes us the trusted partner for clients worldwide seeking cost-effective, world-class precision motion solutions with minimal lead times.

Shaft Dia. (d) mm	Model	Main Dimensions (mm)		Roller Pitch Circle Dia. (dp) mm	Width (B) mm	Chamfer (r) min	Shoulder Height (mm)		Basic Load Rating (kN)		Weight (kg)
Shaft Dia. (d) mm	Model	ID (d)	OD (D)	Roller Pitch Circle Dia. (dp) mm	Width (B) mm	Chamfer (r) min	ds	Dh	Dyn. (Cr)	Stat. (C0r)	Weight (kg)
40	BRE4010	40	65	54	10	1	47.5	58	8.33	10.6	0.16
45	BRE4510	45	70	59	10	1	51	61.5	8.62	11.3	0.17
50	BRE5013	50	80	66	13	1	57.5	72	16.7	20.9	0.27
60	BRE6013	60	90	76	13	1	68	82	18	24.3	0.3
70	BRE7013	70	100	86	13	1	78	92	19.4	27.7	0.35
80	BRE8016	80	120	101.4	16	1	91	111	30.1	42.1	0.7
90	BRE9016	90	130	112	16	1.5	98	118	31.4	45.3	0.75
100	BRE10016	100	140	121.1	16	1.5	109	129	31.7	48.6	0.83
100	BRE10020	100	150	127	20	1.5	113	133	33.1	50.9	1.45
110	BRE11012	110	135	124.7	12	1	117	129	12.5	24.1	0.4
110	BRE11015	110	145	129	15	1	122	136	23.7	41.5	0.75
110	BRE11020	110	160	137.5	20	1.5	120	140	34	54	1.56
120	BRE12016	120	150	136.8	16	1	127	141	24.2	43.2	0.72
120	BRE12025	120	180	152	25	2	133	164	66.9	100	2.62
130	BRE13015	130	160	146	15	1	137	152	25	46.7	0.72
130	BRE13025	130	190	162	25	2	143	174	69.5	107	2.82
140	BRE14016	140	175	160	16	1.5	147	162	25.9	50.1	1
140	BRE14025	140	200	172	25	2	154	185	74.8	121	2.96
150	BRE15013	150	180	166	13	1	158	172	27	53.5	0.68
150	BRE15025	150	210	182	25	2	164	194	76.8	128	3.16
150	BRE15030	150	230	192	30	2	173	210	100	156	5.3
160	BRE16025	160	220	192	25	2	173	204	81.7	135	3.14
170	BRE17020	170	210	191.1	20	2	184	198	29	62.1	2.21
180	BRE18025	180	240	210	25	2	195	225	84	143	3.44
190	BRE19025	190	240	219	25	1.5	202	222	41.7	82.9	2.99
200	BRE20025	200	260	230	25	2.5	215	245	84.2	157	4
200	BRE20030	200	280	240	30	2.5	221	258	114	200	6.7
200	BRE20035	200	295	247.7	35	2.5	225	270	151	252	9.6
220	BRE22025	220	280	250.1	25	2.5	235	265	92.3	171	4.1
240	BRE24025	240	300	272.5	25	3	256	281	98.3	185	4.5
250	BRE25025	250	310	280.9	25	3	268	293	69.3	150	5
250	BRE25030	250	330	287.5	30	3	269	306	126	244	8.1
250	BRE25040	250	355	300.7	40	3	275	326	195	348	14.8
300	BRE30025	300	360	332	25	3	319	344	75.7	178	5.9
300	BRE30035	300	395	345	35	3	322	368	183	367	13.4
300	BRE30040	300	405	351.6	40	3	326	377	212	409	17.2
350	BRE35020	350	400	376.6	20	3	363	383	54.1	143	3.9
400	BRE40035	400	480	440.3	35	3	422	459	156	370	14.5
400	BRE40040	400	510	453.4	40	3.5	428	479	241	531	23.5
450	BRE45025	450	500	476.6	25	3.5	464	484	61.7	182	6.6
500	BRE50025	500	550	526.6	25	1.5	514	534	65.5	201	7.3
500	BRE50040	500	600	548.8	40	1.5	526	572	239	607	26
500	BRE50050	500	625	561.6	50	3.5	536	587	267	653	41.7
600	BRE60040	600	700	650	40	3.5	627	673	264	721	29
600	BRE60050	600	725	661.6	50	4	636	687	294	785	45

Production Process

Blueprint · Designing Precision

Given the structural characteristics of crossed roller bearings (rollers arranged in a 90° cross pattern), our technical team uses 3D CAD and finite element analysis (FEA) software to accurately calculate raceway angles, spacing, and interference.

Customizing products based on customer operating conditions, we benchmark against P2/P4/P5 tolerance classes and simulate post-assembly rotational precision in advance. The blueprint serves as the sole standard guiding all subsequent turning, grinding, and inspection processes.

Turning & Grinding · Rough to Mirror

Turning and grinding are the core processes that determine the bearing's geometric precision. We use high-rigidity CNC lathes for step-by-step ring processing, ensuring basic inner/outer diameter and raceway dimensions through rough, semi-finish, and finish turning while leaving grinding allowances.

We employ plunge grinding with formed grinding wheels for the V-shaped raceways of crossed roller bearings, and perform combination matching for the split inner/outer rings to ensure rotational plane runout meets P5 or higher standards.

Assembly · Interlocking Precision

The assembly of crossed roller bearings is more delicate than standard bearings: rollers must be arranged in an alternating cross pattern and precisely guided by spacers or cages.

All components are ultrasonically cleaned, dried, and grouped according to measured dimensions. High rigidity and stable torque are then imparted to the crossed roller bearings through negative clearance or preload adjustments. Assembly is completed in a constant temperature and humidity cleanroom to ensure P4/P2 level precision.

Inspection · Not Missing a Micron

As tolerance classes P5, P4, and P2 become progressively stricter, our inspection equipment and processes are upgraded accordingly:

We use high-precision roundness measuring instruments for dimensional tolerances, dial indicators with dedicated test mandrels for radial and axial runout, profilometers and Coordinate Measuring Machines (CMM) to verify raceway profiles and angles, and dedicated clearance and torque testers to determine clearance and starting torque.

Packaging · Anti-Rust & Protection

The packaging process is equally strict, ensuring zero loss of precision for the crossed roller bearings from the factory until pre-installation.

Eco-friendly anti-rust oil is evenly sprayed to ensure no residual particles in the inner cavity. Each bearing is vacuum-sealed in a thickened PE bag and film for water and dust protection, then boxed using wrapping tape. The outer carton is lined with high-density foam and pearl cotton to prevent transport collisions, and is marked with the model, precision grade (P5/P4/P2), and production batch number.