NTN7210CT1GDLP4Super-Precision Angular Contact Ball Bearing Duplex Pair – Straight Bore, 50 mm ID, 90 mm OD, 20 mm Width, Open, 15° Contact Angle, ABEC 7, Light Preload, 2 Pcs

Product Description

What this part is:

NTN 7210CT1GDLP4 super-precision angular contact ball bearing set, 72 dimension series, 50 mm bore x 90 mm outside diameter x 20 mm width per bearing. Bore: 50 mm. Outside Diameter: 90 mm. Overall Width: 20 mm. Total Width: 40 mm across the pair. Unit Quantity: 2 Pcs.

Decoding the designation:

7210 — the 72 dimension series with a 50 mm bore.

C — 15° contact angle in NTN’s own key (C for 15°, AD for 25°, no symbol for 30°).

T1 — machined phenol resin cage.

G — flush ground, so the faces are ground for universal matching.

D — universally matched for duplex assembly.

L — light preload, NTN’s GL class.

P4 — JIS Class 4, equal to ABEC 7.

Specifications:

Bore Type: Straight. Number Of Rows: 1 per bearing. Rolling Elements: Steel balls. Closure Type: Open. Contact Angle: 15°. Precision Class: JIS Class 4, equal to ABEC 7. Preload: Light. Cage Material: Phenol resin. Cage Type: Machined. Design Units: Metric. Material: High-carbon chrome bearing steel. Dynamic Load Rating, two-row set: 69,500 N (15,624 lbf). Static Load Rating, two-row set: 63,500 N (14,275 lbf). Standard Preload at the GL class for a 50 mm bore, 72C type: 98 N. Item Weight: 0.445 kg (0.98 lb) per bearing, 0.890 kg (1.97 lb) per set. Operating Temperature Range: -40 °C to 120 °C. Lubricant: grease or oil. Mounting Arrangement: universally matched duplex, for back-to-back, face-to-face or tandem assembly. Country of Origin: Japan.

Dimensions and mounting:

Diameter of Shaft Abutment: 57.0 mm minimum, and 54.5 mm on the second face. Diameter of Housing Abutment: 83.0 mm maximum, and 85.5 mm on the second face. Maximum Shaft or Housing Fillet Radius: 1.0 mm, and 0.6 mm on the second face. Chamfer Dimension: 1.1 mm and 0.6 mm.

Compatibility and replacement:

Other makers’ 50 x 90 x 20 mm duplex pairs at 15° with light preload: Fafnir 2MM210WI-DUL, NSK 7210CTRDULP4, SKF 7210 CD/P4ADGA, FAG B7210-C-T-P4S-UL and RHP 7210CTDULP4. A 7210AD execution is a related size at a 25° contact angle. Also written 7210C, 7210C-T1-G-DL-P4, 7210C T1 G DL P4, 7210CT1GDLP4/B7 and 7210CT1GD2/GLP4.

Frequently asked questions:

What are the dimensions of the NTN 7210CT1GDLP4?

50 mm bore, 90 mm outside diameter, 20 mm width per bearing, 40 mm across the pair.

What contact angle and preload does it have?

15° contact angle with light preload (GL class).

What are the load ratings?

69,500 N dynamic and 63,500 N static for the two-row set.