GQZ 7001ATYNDBMP5 Pre-Matched DB Back-To-Back Angular Contact Ball Bearing Set 12×28×8mm 30° Contact Angle P5 Grade

7001ATYNDBMP5 complies with NSK standard precision angular contact ball bearing marking rule:

• 7001A: 30° contact angle single row angular contact ball bearing
• TYN: Polyamide resin cage, guided by outer ring
• DB: Factory pre-matched back-to-back (O-type) duplex set
• MP5: ISO P5 precision grade

Back-to-back paired structure features wider load center distance, excellent anti-deflection rigidity, capable of bearing combined radial load and bidirectional axial load. Open construction supports grease or oil lubrication. Factory pre-grouped set ensures consistent preload without manual matching. Widely used for miniature high-speed spindles, precision testing instruments, small ball screw supports and compact automation positioning equipment.

Formal quotation will be sent within 24 hours upon your inquiry.

Model:

7001ATYNDBMP5

Dimensions:

d12 mm, D28 mm, Single width B8 mm, overall set width T16 mm

Min chamfer r:

0.6 mm

Net weight:

approx 0.022 kg (per single bearing)

Structure:

Two matched single row angular contact ball bearings, DB back-to-back assembly

Contact angle:

30°

Material:

GCr15 bearing steel; polyamide cage

Precision class:

P5

Basic dynamic load Cr:

5420 N

Basic static load C0r:

2940 N

Limiting speed (grease):

32000 rpm

Additional Info:

Complete dimension drawings and load data available on request.

1. 30° contact angle provides outstanding axial load capacity for alternating thrust working conditions
2. Factory pre-assembled DB back-to-back set, stable preload, consistent performance batch to batch
3. Polyamide lightweight cage reduces friction and temperature rise during continuous high-speed rotation
4. Larger span between load centers improves rigidity against shaft bending deflection
5. Standard dimensions directly interchangeable with original NSK specifications
6. Customizable: P4 higher precision grade, DF face-to-face set, special high-speed grease, OEM laser marking

• Miniature high-speed precision spindles and small grinding heads
• Precision measuring instruments and optical automation equipment
• Compact ball screw support assemblies for small CNC equipment
• Medical automation machinery and light-duty precision positioning units
• Rotary devices subject to radial load and alternating bidirectional axial force

25 years professional bearing manufacturer, products exported globally.

Ultra-precision raceway grinding to satisfy P5 precision requirements.

Strict clearance & preload inspection for every duplex matched set.

24-hour technical support for DB/DF arrangement and installation guidance.

Ample stock for machinery distributors.

Precise dimensions and stable service performance.

GCr15 raw material quenching & tempering hardness inspection

Precision superfinishing for raceways and steel balls

Contact angle, internal clearance and matched group testing

Rotational runout, vibration and smoothness inspection

If you need 7001ATYNDBMP5 matched bearing sets:

Send inquiry to obtain below supports:

• Quick quotation within 24 hours
• DF face-to-face matched set alternative consultation
• Upgrade to P4 precision grade solution
• Competitive factory direct price
• Contact our sales team for full datasheets and formal offer.