Deep Groove Ball Bearings: The Industry Default and When to Reach for Something Else
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Super precision angular contact ball bearing, 12 x 32 x 10 mm, P4 / ABEC 7. Laminated phenolic outer-ring-guided cage, light preload, universally matchable.
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Here are some other options that might fit your project — cross-referenced equivalents and similar parts we have in stock and ready to ship. Need help choosing? Call 585-295-7880.
Angular Contact Ball Bearing — 12 mm Bore, 32 mm OD, 10 mm Width, 15° Contact Angle, P4, Universal Light Preload$28.43
Angular Contact Ball Bearing - 17 mm ID, 35 mm OD, 10 mm Width, 25° Contact Angle, ABEC 7 / P4, Light Preload, Open.$50.24
Super-Precision Angular Contact Ball Bearing Duplex Pair – 15 mm Bore x 32 mm OD x 9 mm Wide, 25° Contact Angle, Phenolic Cage, ABEC 7, Medium Preload$66.29
Angular Contact Ball Bearing - Ball Screw Support, 30 mm ID, 72 mm OD, 15 mm Width, 60° Contact Angle, Heavy Preload.$106.15| MFR / Brand | RHP |
|---|---|
| MPN | 7201TULP4 |
| Model | 7201 T UL P4 / MM201WI CR DUL / B7201TADULEP7 |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 12 mm (0.4724 in) |
| OD | 32 mm (1.2598 in) |
| Width | 10 mm |
| Series | 7200 |
|---|---|
| Lubricant | Oil |
| Preload | Light |
| Material | High Carbon Chrome Bearing Steel |
| Base Number | 7201 |
| Industry Terms | super precision angular contact ball bearing, machine tool spindle bearing, P4 ABEC 7 bearing, phenolic cage bearing, universally matchable bearing, light preload spindle bearing |
| Overall Width | 10 mm (0.3937 in) |
| Bore Shaft Size | 12 mm (0.4724 in) |
| Mpn Variants | 7201TULP4, 7201 T UL P4, 7201-T-UL-P4, 7201-T-DUL-P4, 7201TDULP4, B7201TADULEP7, B7201-TA-DUL-EP7, MM201WI CR DUL, MM201WICRDUL, 201WI |
| Arrangement Configuration | Universally matchable single bearing |
| Precision Class | P4 / ABEC 7 / ISO Class 4 |
| Min Temp | -30 °C |
| Cage Type | Outer-ring guided |
| Precision Rating | ABEC 7 |
| Rolling Elements | Ball |
| Max Temp | 120 °C |
| Item Weight | 0.036 kg (0.079 lb) |
| Cage Material | Laminated phenolic resin |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Duty Type | Super Precision |
| Harmonization Code | 8482.10.50 |
| Design Units | Metric |
| Bearing Class | Super precision |
| Bearing Material | High carbon chrome bearing steel (SAE 52100) |
| Running Accuracy | Inner-ring radial runout 2.5 µm max (P4) |
| Part Number | 7201TULP4 |
| Running Accuracy Radial And Axial Runout | Inner-ring radial runout 2.5 µm max (P4) |
| Cross Reference 1 | 7201CTRSU (related size, 15 degree contact angle) |
|---|---|
| Cross Reference 2 | SKF 7201 CD/P4 (related size, 15 degree contact angle) |
| Cross Reference 3 | NSK 7201C P4 (related size, 15 degree contact angle) |
| Cross Reference 4 | 7201A5TRSU (related size, 25 degree contact angle) |
RHP 7201TULP4 is a single-row super precision angular contact ball bearing with a 12 mm bore, 32 mm outside diameter and 10 mm width. Series: 7200 (ISO dimension series 02). Base Number: 7201. Precision Class: P4, equivalent to ABEC 7 and ISO Class 4. Cage Material: laminated phenolic resin, outer-ring guided. Bore Type: straight. Closure: open on both faces.
Precision Class: P4 – ABEC 7 – ISO Class 4. Preload: light. Matching: universally matchable, so face steps are pre-adjusted at manufacture and no custom spacer is needed to reach the set preload. Cage: outer-ring-guided laminated phenolic resin. Contact Angle: Not specified. Searchable forms of the designation include 7201TULP4, 7201 T UL P4, 7201-T-DUL-P4, B7201TADULEP7 and MM201WI CR DUL.
P4 precision holds inner-ring radial runout to 2.5 µm and mean bore deviation to 4 µm at this bore size, which gives closer shaft location and lower running vibration than a normal-class bearing. An outer-ring-guided laminated phenolic cage runs quietly and suits high spindle speeds. Maximum recommended operating temperature for a laminated phenolic cage is 120 °C. Rings and balls are high carbon chrome bearing steel to SAE 52100, through hardened and heat treated for dimensional stability.
Preload: light, which is the level chosen for most spindle applications where loads and speeds are not extreme. Universal face control means the bearing mounts back-to-back or face-to-face at the same preload value, and shares load equally in tandem. Preload and radial internal clearance are mutually exclusive, so Internal Clearance is N/A.
Unit Quantity: 1 Pc.
Shaft abutment diameter d1: 17 mm minimum. Housing abutment diameter D1: 27 mm maximum. D2: 29.5 mm maximum. Chamfer r: 0.6 mm minimum. Chamfer r1: 0.3 mm minimum. Internal volume: 1.7 cm³, which sets the grease charge – 30 percent of internal volume at low and medium spindle speeds, 20 percent at higher speeds. Pitch circle diameter for lubrication jets: 19.6 mm. Mass: 0.036 kg.
RHP publishes this envelope as 7201C at 15° and 7201A5 at 25°. SKF 7201 CD/P4 and NSK 7201C P4 are 15° bearings in the same 12 x 32 x 10 mm envelope and are related sizes. MM201WI CR DUL is the Fafnir designation carried on the same carton.
Country of Origin: United Kingdom. Marked Made In England.
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