7000A5TRSULP3 NSK Super Precision Angular Contact Bearing 10x26x8mm (single)

This NSK 7000A5TRSULP3 is a high-performance super precision angular contact bearing engineered for ultra-smooth rotation, minimal vibration, and superior speed capability. Designed for use in machine tool spindles, high-speed motors, and precision equipment, this bearing offers a perfect combination of rigidity and accuracy.

Its 25-degree contact angle (A5) provides increased axial load capacity while maintaining excellent radial stiffness—making it ideal for demanding spindle applications where both speed and load balance are critical. The phenolic cage (TR) ensures low weight, reduced heat generation, and excellent performance at high rotational speeds.

Typical Applications

CNC machine tool spindles (milling, turning, grinding)
High-speed precision motors and electric spindles
Robotics and automation systems
Measuring and inspection instruments
Aerospace and semiconductor machinery

Boundary Dimensions

d	10	mm	Bore diameter
D	26	mm	Outside diameter
B	8	mm	Width
r(min.)	0.3	mm	Chamfer Dimension
r1(min.)	0.15	mm	Chamfer Dimension

Basic Load Ratings

Cr	6.50	kN	Basic Dynamic Load Rating
C0r	2.41	kN	Basic Static Load Rating

Speeds

Grease	55600	min-1	Limiting Speed
Oil (Oil-air)	83400	min-1	Limiting Speed

Dimensions

	A5: 25°		Contact Angle
a	8.2	mm	Effective Load Center

Abutment and Fillet Dimensions

da(min.)	12.5	mm	Diameter of Shaft Abutment
Da(max.)	23.5	mm	Diameter of Housing Abutment
Db(max.)	24.8	mm	Diameter of Housing Abutment
ra(max.)	0.3	mm	Radius of Shaft or Housing Fillet
rb(max.)	0.15	mm	Radius of Shaft or Housing Fillet

Performance

Pa

2.48

kN

Permissible Axial Load

Preload,Rigidity(DB and DF arrangement)

	Preload	Axial Rigidity	Measured axial clearance
EL	17N	29N/μm	1μm
L	43N	41N/μm	-2μm
M	78N	52N/μm	-5μm
H	153N	68N/μm	-10μm

Additional information

0.12

g/brg

Recommended Grease Quantities

Mass

0.019

kg

Mass(approx.)

Why choose Bearing King for this product?

At Bearing King we specialise in high-precision bearings and spindle-grade components, offering genuine NSK product, UK stock availability, and expert support to help you select the correct bearing solution for your machine or application.