What are the typical applications for KRB series crossed roller bearings?

The KRB series crossed roller bearings are commonly used in precision machinery such as robotics, aerospace, and automation systems. They are particularly suited for applications where high precision and heavy load-bearing capabilities are required, such as in the joints of industrial robots or in high-speed spindles of CNC machines.

How do I select the right KRB series bearing for my application?

When selecting a KRB series bearing, consider the load requirements, speed limitations, and space constraints of your application. Each bearing in the series is designed to handle specific load ratings and speeds, so it's essential to match these parameters with your machinery's specifications. Consulting with a bearing specialist can also provide guidance on selecting the most suitable bearing for your needs.

KRB Series Crossed Roller Bearings

Precision and Durability in High-Load Applications

The KRB series crossed roller bearings are engineered for high precision and reliability in demanding environments. These bearings are designed to handle heavy loads and high speeds, making them ideal for applications in robotics, aerospace, and heavy machinery. With a compact design and superior load distribution, the KRB series is the choice for precision machinery that requires durability and efficiency.

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Product Parameters

Model	Inner d(mm)	Outer D(mm)	Pitch Diameter dp(mm)	Width B(mm)	Grease Hole a(mm)	Grease Hole b(mm)	Min Radius r_min(mm)	ds_max(mm)	Dh_min(mm)	Dynamic Load C(kN)	Static Load C0(kN)	Weight(kg)
RA 5008	50	66	57	8	2	0.8	0.5	53.5	60.5	5.1	7.19	0.08
RA 6008	60	76	67	8	2	0.8	0.5	63.5	70.5	5.68	8.68	0.09
RA 7008	70	86	77	8	2	0.8	0.5	73.5	80.5	5.98	9.8	0.1
RA 8008	80	96	87	8	2	0.8	0.5	83.5	90.5	6.37	11.3	0.11
RA 9008	90	106	97	8	2	0.8	0.5	93.5	100.5	6.76	12.4	0.12
RA 10008	100	116	107	8	2	0.8	0.5	103.5	110.5	7.15	13.9	0.14
RA 11008	110	126	117	8	2	0.8	0.5	113.5	120.5	7.45	15	0.15
RA 12008	120	136	127	8	2	0.8	0.5	123.5	130.5	7.84	16.5	0.17
RA 13008	130	146	137	8	2	0.8	0.5	133.5	140.5	7.94	17.6	0.18
RA 14008	140	156	147	8	2	0.8	0.5	143.5	150.5	8.33	19.1	0.19
RA 15008	150	166	157	8	2	0.8	0.5	153.5	160.5	8.82	20.6	0.2
RA 16013	160	186	172	13	2.5	1.6	0.8	165	179	23.3	44.9	0.59
RA 17013	170	196	182	13	2.5	1.6	0.8	175	189	23.5	46.5	0.64
RA 18013	180	206	192	13	2.5	1.6	0.8	185	199	24.5	49.8	0.68
RA 19013	190	216	202	13	2.5	1.6	0.8	195	209	24.9	51.5	0.69
RA 20013	200	226	212	13	2.5	1.6	0.8	205	219	25.8	54.7	0.71

Why KRB Series Crossed Roller Bearings Matter for Precision Machinery

The KRB series crossed roller bearings are designed for applications requiring high precision and the ability to withstand substantial loads. With an inner diameter of 20mm, these bearings are compact yet robust, suitable for a variety of precision machinery. The KRB series is known for its high dynamic load rating of 45 kN and static load rating of 90 kN, making it a preferred choice in heavy-duty machinery and automation systems.

These bearings are widely used in industries such as robotics, aerospace, and automation due to their ability to maintain precision under heavy loads. The KRB series is also favored for its high limiting speed of 3000 rpm, ensuring smooth and efficient operation in high-speed machinery.

Compared to other bearing series, the KRB series stands out for its combination of high load capacity and precision. This makes it an excellent choice for applications where both performance and durability are critical. The KRB series is also designed with a focus on reliability, ensuring minimal downtime and maximum productivity for our customers.

High dynamic and static load ratings for heavy-duty applications.
Compact design suitable for space-constrained machinery.
High limiting speed for efficient operation in high-speed environments.

Technical Specifications and Benefits

STEP 1

High Load Capacity

The KRB series crossed roller bearings are designed to handle heavy loads with a dynamic load rating of 45 kN and a static load rating of 90 kN, making them ideal for applications that require high load-bearing capabilities.

STEP 2

Compact Design

With an inner diameter of 20mm, these bearings offer a compact solution for precision machinery where space is at a premium. Their compact size does not compromise on performance or durability.

STEP 3

High Limiting Speed

The KRB series has a high limiting speed of 3000 rpm, ensuring efficient and smooth operation in high-speed machinery. This feature is crucial for applications that require rapid and continuous motion.

STEP 4

Precision and Reliability

These bearings are engineered for precision and reliability, ensuring consistent performance even under heavy loads. The KRB series is known for its minimal downtime and high efficiency, making it a trusted choice in the industry.