NSK7208A5TYSULSuper-Precision Angular Contact Ball Bearing – 40 mm ID, 80 mm OD, 18 mm Width, Open, 25° Contact Angle, Light Preload, Single Universal

Product Description

What this part is:

NSK 7208A5TYSUL super-precision single-row angular contact ball bearing, 40 mm bore x 80 mm outside diameter x 18 mm width. 25° contact angle, light preload, single universal grinding, ball-guided cage, open. One bearing.

Decoding the designation:

7208 — ISO 7200 series (dimension series 02) size; bore code 08 gives a 40 mm bore.

A5 — 25° contact angle.

TY — ball-guided cage.

SU — single bearing, universal grinding: flush ground faces for back-to-back, face-to-face or tandem mounting.

L — light preload.

Specifications:

Bore Diameter: 40 mm. Outside Diameter: 80 mm. Overall Width: 18 mm. Number Of Rows: 1. Rolling Elements: Ball. Bore Type: Straight. Closure Type: Open. Contact Angle: 25°. Preload: Light. Mounting Arrangement: Single universal. Cage Type: Ball-guided. Bearing Material: Carbon chrome bearing steel (SAE 52100). Series: 7200. Dynamic Load Rating: 34,500 N (7,756 lbf). Static Load Rating: 24,100 N (5,418 lbf). Limiting Speed: 16,500 rpm grease; 26,800 rpm oil/air. Effective load centre: 23.0 mm. Item Weight: 0.366 kg (0.81 lb). Lubricant: grease or oil. Unit Quantity: 1 Pc.

Dimensions and mounting:

Shaft abutment diameter d1 min: 47 mm. Housing abutment diameter D1 max: 73 mm. Housing abutment D2 max: 75 mm. Bearing fillet radius r min: 1.1 mm. Fillet radius r1 min: 0.6 mm. Internal free volume: 15.5 cm³. Pitch circle diameter for lubrication jets: 55.5 mm. Light preload: 290 N axial preload and 136 N/µm axial stiffness in a back-to-back pair.

Compatibility and replacement:

Carton designations: 3MM208 WI CR UL and B7208E. SKF 7208 ACD/P4A, FAG B7208-E-T-P4S-UL and RHP 7208ETSULP4 are 25° super-precision executions of the same 40 x 80 x 18 mm size. Fafnir 3MM208 WI CR UL is a 25° execution with a phenolic cage. A 7208C in this envelope has a 15° contact angle.

Frequently asked questions:

What is the contact angle of the NSK 7208A5TYSUL?

25°, given by the A5 code.

What are the load ratings and limiting speeds?

Dynamic load rating 34,500 N, static load rating 24,100 N, limiting speed 26,800 rpm oil/air and 16,500 rpm grease.

What does SUL mean?

Single universal bearing with light preload; the flush ground faces allow back-to-back, face-to-face or tandem mounting.