Product Details
Company Profile

Shaft 40 Mm BNAT408 Crossed Roller Robot Arm Bearing 40X56X8mm

Shaft Diameter 40 mm BNAT408 Crossed Roller Bearing 40X56X8mm Precision Robot bearing Joints

BNAT408 ,Ultra-Thin Section Type Both the inner and outer rings are of an integral structure. This series minimizes axial and radial section dimensions to the extreme , featuring an ultra-thin design. It is most suitable for applications requiring lightweight and compact structures in rotating parts, such as collaborative robots, service robots, special-purpose robots, and alignment platforms.. Key features include:

Outer Diameter: 56 mm
Bore Diameter: 40 mm
Width:8mm

The BNAT408 bearing excels in applications requiring high performance and reliability, offering superior stiffness and load capacity while simplifying installation.

Part Number	BNAT408
Measurement System	Metric
Bearing Type	Roller Bearing
Roller Bearing Type	Crossed
For Load Direction	Combined Load
Construction	Single Row
Seal Type	Open
Bore Diameter	40 mm
Outer Diameter	56 mm
Width	8 mm
Holes	With Holes
Ring Material	Steel
Roller Material	Steel
Basic Dynamic Load Rating(C)	4200N
Basic Static Load Rating (Co)	5800N
Lubrication	Required
Shaft Mount Type	Press Fit
Temperature Range	0 -230 °F
ABEC Rating	ABEC5/7/9 (P5,P4,P2)
RoHS	Compliant
REACH	Compliant
Weight	0.07kg

What's the Performance Features of BNAT408 Crossed Roller Bearing?

Ultra-Thin Profile: Minimized axial and radial dimensions for compact, space-saving applications.
High Precision: Ensures accurate rotation, ideal for robotics and precision machinery.
Lightweight: Reduces overall weight, perfect for robotic joints and portable devices.
Versatile Load Capacity: Handles radial, axial, and moment loads efficiently.
Integral Structure: Single-piece inner and outer rings enhance rigidity and stability.

What's the Applications of the BNAT408 Crossed Roller Bearing?

The BNAT408 bearing is compact, precise, and rigid, making it suitable for various industries. Here are its main applications:

Robotics

Industrial Robots: Used in joints for precise and stable motion.
Service Robots: Ensures flexibility and accuracy in joints and rotating parts.
Collaborative Robots: Provides safety and precision for human-robot interaction.
Specialized Robots: Ideal for exoskeletons, surgical robots, hexapods, quadrupeds, and humanoid robots.

Machinery

CNC Machines: Ensures high precision in spindles and ball screws.
Textile Printing Equipment: Supports stable operation of rollers.
Alignment Platforms: Provides accurate positioning.
Turntables: Handles loads while ensuring smooth rotation.
Hollow Rotary Platforms: Compact design suits hollow structures.

Motors

DD Motors: Ensures stable and precise direct drive performance.

Other Fields

Radar Systems: Ensures accurate antenna rotation and stability.
Medical Devices: Used in surgical robots and imaging equipment for precision.
Measuring Instruments: Guarantees accurate measurements.
AGV Carts: Ensures stable movement of wheels and steering systems.
Gearboxes: Supports precise motion control in harmonic and planetary gear systems.

Bearing Number	Dimensions(mm)				Mounting Size		Basic Load Rating(N)		Inner Ring Mounting Hole		Outer Ring Mounting Hole		Reference Weight(Kg)
	Inner Diameter	Outer Diameter	Width	Chamfer	Mounting Size		Dynamic	Static	Hole Center	Hole size	Hole Center	Hole size	Reference Weight(Kg)
	d	D	B	r(min)	da	Da	Cr	Cor	dn	do	Dn	Do	Wt ≈
RJ40	8	40	8	0.3	26	28	3020	3780	20	4-M3	34	6-ф2.8-ф4.6/凵2.8	0.06
RU208	8	44	8	0.3	26	32	3020	3780	16	4-M3	38	4-ф3-ф 5/凵3	0.08
RU28	10	52	8	0.3	24	29.5	2900	3400	16	4-M3	42	6-ф3.4-ф6.5/凵3.3	0.12
RU42	20	70	12	0.6	37	47	7350	8350	28	6-M3	57	6-ф3.4-ф6.5/凵3.3	0.29
RU52	30	80	12	0.6	46.5	58.5	8610	10600	35	6-M3	67	6-ф3.4-ф6.5/凵3.3	0.40
RU66	35	95	15	0.6	59	74	17500	22300	45	8-M4	83	8-Φ4.5-Φ 8/凵4.3	0.62
RU85	55	120	15	0.6	79	93	20300	29500	65	8-M5	105	8-Φ5.5-Φ9.5/凵5.4	1.00
RU124	80	165	22	1	114	134	33100	50900	97	10-M5	148	10-Φ5.5-Φ9.5/凵5.4	2.60
RU178	115	240	28	1.5	161	195	80300	13500	139	12-M8	217	12-Φ8.6-Φ14/凵8.6	6.80
CRBTF105A	10	43	5	0.15	12.5	38.5	2800	2500	16	6-M2.5	35	6-ф2.8-ф4.6/凵2.8	0.09
CRBTF305A	30	63	5	0.15	33.5	58.5	5040	4500	36	8-M2.5	55	8-ф2.8-ф4.6/凵2.8	1.20
CRBT305-41A	30	41	5	0.15	33.5	36.5	3640	3250	-				0.08
RA5008C	50	66	8	0.5	53.5	60.5	5100	7190	-				0.08
RA6008C	60	76	8	0.5	63.5	70.5	5680	8680	-				0.09
RA7008C	70	86	8	0.5	73.5	80.5	5980	9800	-				0.10
RA8008C	80	96	8	0.5	83.5	90.5	6370	11300	-				0.11
RA9008C	90	106	8	0.5	93.5	100.5	6760	12400	-				0.12
RA10008C	100	116	8	0.5	103.5	110.5	7150	13900	-				0.14
BNAT105	10	21	5	0.2	12.5	18.5	1100	800	-				0.009
BNAT205	20	31	5	0.2	22.5	28.5	1500	1400	-				0.015
BNAT305	30	41	5	0.2	32.5	38.5	1900	2100	-				0.021
BNAT408	40	56	8	0.2	42.5	53.5	4200	5800	-				0.027
BNAT505	50	61	5	0.2	52.5	58.5	2400	3400	-				0.032
BNAT555	55	66	5	0.2	57.5	63.5	2500	3700	-				0.035
BNAT805	80	91	5	0.2	82.5	88.5	3000	5400	-				0.05
BNAT905	90	101	5	0.2	92.5	98.5	3100	6000	-				0.056

If you need more detailed information , feel free to ask!

Product Tags:


*From:	Your email address is incorrect!
*To:	Beining Intelligent Technology (Zhejiang) Co., Ltd
*Subject:	Subject is empty!
*Message:	For the best results, we recommend including the following details: -Self introduction -Required specifications -Inquire about price/MOQ Characters Remaining: (0/3000) Please enter 20 to 3000 characters to contact this supplier!

Categories	Robot Bearing
Brand Name:	CNBTZC or OEM
Model Number:	BNAT408
Certification:	IATF16949:2016
Place of Origin:	China
MOQ:	1000
Price:	Please contact us,thanks
Payment Terms:	L/C,T/T
Supply Ability:	100000pcs per month
Delivery Time:	2-4 weeks
Packaging Details:	plastic bag,box,carton,pallet
Bearing Name:	BNAT408 Crossed Roller Bearing
Shaft Bore:	40mm
Replaceable With:	IKO,THK
Customized:	Yes