GMNS6010CTAA7UMSuper-Precision Spindle Angular Contact Ball Bearing – 50 x 80 x 16 mm, 15° Contact Angle, ABEC 7, Medium Preload

Product Description

What this part is

GMN S6010CTAA7UM, a super-precision spindle angular contact ball bearing from GMN’s S Series. Bore: 50 mm. Outside Diameter: 80 mm. Overall Width: 16 mm. Contact Angle: 15°. Precision Class: ABEC 7 / P4. Preload: Medium. Number Of Rows: 1. Rolling Elements: Ball. Bearing Material: Bearing steel. Cage Material: Fabric-base laminated phenolic. Cage Type: Machined, outer-ring guided. Closure Type: Open. Bore Type: Straight. Internal Clearance: N/A — the bearing is preload-set, not clearance-set. Series: GMN S6000. Country of Origin: Germany.

Decoding the designation

Contact Angle: 15°, from the C in GMN’s own designation scheme. Precision Class: ABEC 7, from the A7. Cage: TA — a machined, outer-ring-guided cage in fabric-base laminated phenolic. Preload: UM — universally matchable, medium preload. Base Number: S6010. GMN files the S 6000 range under Angular Contact, S Series, and in GMN’s scheme the S prefix plus the angle letter decides the bearing type — so this is an angular contact bearing carrying a published contact angle, not a deep groove type.

What these specs mean in practice

Dynamic Load Rating: 28 kN (6,290 lbf). Static Load Rating: 24.3 kN (5,460 lbf). Limiting Speed: 26,000 rpm. Operating Temperature Range: −30 °C to +100 °C. A 15° contact angle puts the load path closer to radial, which raises the speed limit and lowers the heat generated at speed — the reason 15° is the standard choice for the fast end of a machine-tool spindle stack. The outer-ring-guided phenolic cage runs on a lubricated land rather than being carried by the balls, so ball-to-cage pocket forces stay low at high speed and the cage itself absorbs and releases lubricant. Medium preload sits in the middle of the light / medium / heavy ladder: stiffer shaft location than light preload, more speed capability than heavy.

Quantity and configuration

Unit Quantity: 1 Pc. Mounting Arrangement: Universally matchable — back-to-back, face-to-face or in tandem. Both faces are ground to a common reference, so any two or more pieces of this designation stack directly into a duplex, triplex or quad set at medium preload without shims or regrinding. Item Weight: 0.56 lb.

Interchange guidance

Cross-Reference 1: SKF 7010 CD/P4ADGB. Cross-Reference 2: Fafnir 2MM9110WI-CR-SUM — 2MM = 15° on the Fafnir scheme, and 9110WI maps to ISO 7010. Cross-Reference 3: 7010C-T-P4-SUM. All three are 50 x 80 x 16 mm at 15°. Searchable variants of this designation: S6010CTAA7UM, S 6010 C TA A7 UM, S-6010-C-TA-ABEC7-UM, S6010CTA, and the ISO equivalent 7010C. Harmonization Code: 8482.10.50.