NTN7010CDBGNP5Angular Contact Ball Bearing Matched Pair – 50 x 80 x 16 mm, Back-to-Back, 15° Contact Angle, ABEC 5, Polyamide Cage, Normal Preload, Open

Product Description

What this part is

NTN 7010CDB/GNP5 angular contact ball bearing matched back-to-back duplex pair. Bore Diameter: 50 mm. Outside Diameter: 80 mm. Overall Width: 16 mm per bearing. Total Width: 32 mm. Contact Angle: 15°. Precision Class: ABEC 5 / P5. Preload: GN normal. Dynamic Load Rating: 43,700 N. Static Load Rating: 46,200 N. Limiting Speed: 14,400 rpm grease; 23,040 rpm oil. Cage Material: Polyamide. Cage Type: Fibreglass-reinforced. Rolling Elements: Ball. Number Of Rows: 1 per bearing. Bore Type: Straight. Closure Type: Open. Bearing Material: High carbon chrome steel. Item Weight: 0.51 kg (1.13 lb). Design Units: Metric. Series: 7000. Base Number: 7010. Part Number: 7010CDBGNP5. Unit Quantity: 2 Pcs.

Decoding the designation

7010 — ISO 70 extra-light series, 50 mm bore, 80 mm outside diameter, 16 mm wide.

C — 15° contact angle.

DB — matched pair arranged back-to-back.

GN — normal preload class.

P5 — ISO tolerance class 5, ABEC 5.

What these specs mean in practice

Dynamic Load Rating: 43,700 N. Static Load Rating: 46,200 N. Both figures are set ratings for the pair as NTN publishes them for this designation, not single-bearing values. The static rating sitting above the dynamic rating is normal on a back-to-back pair, which takes thrust in both directions.

Contact Angle: 15°. The shallow angle keeps the ball load path close to radial, which is why this set reaches 14,400 rpm on grease and 23,040 rpm on oil. Limiting Speed: 14,400 rpm grease; 23,040 rpm oil.

Precision Class: ABEC 5 / P5. Bore, outside diameter and running accuracy are held to roughly half the standard tolerance band, which is what holds shaft position at those speeds.

Cage Material: Polyamide. Cage Type: Fibreglass-reinforced. The reinforced resin cage is lighter than a steel or brass cage and runs quieter at speed.

Preload: GN normal. The set is ground so that clamping the rings together produces a fixed axial preload with no shims. Internal Clearance is not applicable on a preloaded set.

Mounting data

Shaft seat 50 mm. Housing bore 80 mm. Mounted width 32 mm. Shaft abutment da min: 55.5 mm. Housing abutment Da max: 74.5 mm. Housing abutment Db max: 75.5 mm. Shaft fillet radius r min: 1.0 mm. Second fillet radius r1 min: 0.6 mm. Maximum shaft fillet ras max: 1.0 mm. Maximum housing fillet r1as max: 0.6 mm. Inner ring recess diameter D1: 69.7 mm. Outer ring recess diameter D2: 74.4 mm. Operating temperature range as NTN publishes it: -40 to 120 °C.

Quantity and configuration

Unit Quantity: 2 Pcs. Arrangement / Configuration: Matched back-to-back duplex pair. Mounting Arrangement: Back-to-back. The two bearings ship together as a ground and matched set.

Interchange guidance

Cross-Reference 1: SKF 7010 CD/P5. Cross-Reference 2: FAG B7010-C-T-P4S. Cross-Reference 3: NSK 7010CTYNDBP5. Cross-Reference 4: NTN 7010CDB/GNP5. Cross-Reference 5: Timken 2MM9110WI DB. Cross-Reference 6: RHP 7010CTDB. Cross-Reference 7: Koyo 7010C DB. Cross-Reference 8: MRC 110KRDB. Cross-Reference 9: SNR 7010CG1DB. Each is a 15° execution on the ISO 7010 envelope, which is what makes the interchange valid: SKF CD, FAG C, NSK C, Timken 2MM, RHP C and the MRC R counterbored outer ring are all the 15° codes in their own schemes. Precision class and preload class have to be matched as well as the angle when substituting into a preloaded spindle. Searchable variants of the number: 7010CDBGNP5, 7010CDB/GNP5, 7010-C-DB-GN-P5, 7010 C DB GN P5, 7010CDB, 7010C.