RHP7005CTBSULP6Super-Precision Angular Contact Ball Bearing – 25 mm ID, 47 mm OD, 12 mm Width, Open, 15° Contact Angle, Light Preload, Single Universal

Product Description

What this part is

RHP 7005CTBSULP6 super-precision single-row angular contact ball bearing. Bore: 25 mm. Outside Diameter: 47 mm. Overall Width: 12 mm. Number Of Rows: 1. Rolling Elements: Ball. Bore Type: Straight. Closure Type: Open. Bearing Material: carbon chrome bearing steel to SAE 52100, through hardened and heat treated. Series: 7000, ISO dimension series 10. Item Weight: 0.079 kg (0.17 lb).

Decoding the designation

Contact Angle: 15°. Cage Material: laminated phenolic resin. Cage Type: machined, outer-ring guided. Preload: light. Mounting Arrangement: single universal. Precision Class: P6, equivalent to BS292 EP3 and ABEC 3. Running Accuracy – Radial And Axial Runout: P6. Searchable forms of the number: 7005CTBSULP6, 7005-C-TB-SUL-P6, 7005 C TB SUL P6.

Load ratings and speed

Dynamic Load Rating: 11.7 kN (2,630 lbf). Static Load Rating: 7.4 kN (1,664 lbf). Limiting Speed: 47,500 rev/min on oil/air lubrication and 29,300 rev/min on grease. Effective load centre: 10.8 mm. Maximum Operating Temperature: 120 °C.

What these specs mean in practice

A 15° contact angle favours speed and radial rigidity over axial capacity, which is why it is the standard machine-tool spindle angle. Light preload develops 59 N of axial preload and 32 N/µm of axial stiffness in a back-to-back pair, holding true rolling contact at high speed with less heat than a medium or heavy setting. Universal face control means the rings are flush ground, so any two of these bearings clamp together back-to-back or face-to-face at the rated preload with no custom spacer, and share load equally in tandem.

Mounting data

Shaft abutment diameter d1 min: 30 mm. Housing abutment diameter D1 max: 42 mm. Housing abutment D2 max: 44.5 mm. Bearing fillet radius r min: 0.6 mm. Fillet radius r1 min: 0.3 mm. Internal free volume: 3.8 cm³. Pitch circle diameter for lubrication jets: 32.9 mm. Lubricant: grease or oil.

Quantity and configuration

Unit Quantity: 1 Pc. Internal Clearance: N/A. The bearing is preload-set at manufacture rather than clearance-set, so no radial clearance class applies.

Interchange guidance

Carton designations carried on this part: B7005X2TBSULEP3 and 3M9105WI SUL. The RHP B-series X2 code and the C code both give the 15° angle, and EP3 is the same class as P6. A 7005A5 or 7005E in the same 25 x 47 x 12 mm envelope carries a 25° contact angle, which makes it a related size rather than a substitution.