Motor Starters vs. Contactors vs. Overload Relays: What Each One Does and Why You Need All Three
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Super-precision angular contact ball bearing, 70 x 125 x 24 mm, 25° contact angle, light preload, phenolic outer-land-riding cage, ISO P4S.
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| MFR / Brand | Fafnir |
|---|---|
| MPN | 3MM214WICRSUL |
| Model | 3 MM 214 WI CR DUL / 7214 A/A5/ACD/E T DUL P4 / B7214E |
| Bearing Type | Angular Contact Ball Bearing |
| ID | 70 mm |
| OD | 125 mm |
| Width | 24 mm |
| Condition | New |
|---|---|
| Base Number | 3MM214WI |
| Total Width | 24 mm |
| Bore Shaft Size | 70 mm |
| Mpn Variants | 3MM214WI-SUL · 3MM214WICRSUL · 3 MM 214 WI CR SUL · 3MM214WICRDUL · 7214E-T-P4S-SUL |
| Precision Class | ISO P4S (ABEC 7/9) |
| Dynamic Load Rating C1 | 80.2 kN (18,000 lbf) |
| Additional Attributes | Shaft backing shoulder diameter 80.3 mm; housing backing shoulder diameter 115.8 mm; maximum shaft fillet radius 1.5 mm; outer ring to-clear radius 1.5 mm |
| Cage Type | CR – Phenolic Outer Land Riding Cage |
| Dynamic Load Rating | 80.2 kN (18,000 lbf) C1 |
| Static Load Rating | 57.4 kN (12,900 lbf) C0 |
| Precision Rating | ISO P4S (ABEC 7/9) |
| Cage Material | Phenolic |
| Limiting Speed | 11,300 rpm grease / 20,600 rpm oil |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Contact Angle | 25° |
| Preload | Light |
| Mounting Arrangement | SUL – single universally ground, light preload |
| Design Units | Metric |
| Internal Clearance | N/A |
| Series | 200WI |
| Part Number | 3MM214WICRSUL |
| Cross Reference 1 | SKF 7214 ACDGA/P4A |
|---|---|
| Cross Reference 2 | FAG B7214-E-T-P4S-UL |
| Cross Reference 3 | NSK 7214A5 |
Fafnir 3MM214WI-SUL super-precision angular contact ball bearing, made by The Timken Company. Series: 200WI. Bore: 70 mm. Outside Diameter: 125 mm. Bearing Width: 24 mm. Total Width: 24 mm. Number of Rows: 1. Rolling Elements: Ball, steel. Bore Type: Straight. Closure Type: Open. Design Units: Metric.
Contact Angle: 25°. Precision Rating: ISO P4S (ABEC 7/9). Preload: Light. Cage Type: CR – Phenolic Outer Land Riding Cage. Cage Material: Phenolic. Arrangement: SUL, single universally ground for light preload. World Part Number: 7214E-T-P4S-SUL. Searchable variants: 3MM214WICRSUL, 3MM214WI SUL, 3 MM 214 WI CR SUL.
Dynamic Radial Load Rating (C1, one million revolutions): 80,200 N (18,000 lbf). C1 ISO Dynamic Radial Rating per row: 72,900 N (16,400 lbf). Static Radial Load Rating (C0): 57,400 N (12,900 lbf). Limiting Speed, grease: 11,300 rpm. Limiting Speed, oil: 20,600 rpm.
A 25° contact angle carries more thrust and less speed than the 15° execution on the same envelope, which suits spindles and screw drives where axial load dominates. Light preload keeps running friction and heat generation low while still removing internal play. The phenolic outer-land-riding cage is light and runs quietly at speed. ISO P4S is a tighter tolerance grade than P4, giving closer running accuracy and lower vibration.
Shaft Backing Shoulder Diameter: 80.3 mm. Housing Backing Shoulder Diameter: 115.8 mm. Maximum Shaft Fillet Radius: 1.5 mm. Outer Ring To Clear Radius: 1.5 mm.
Unit Quantity: 1 Pc. Single universally ground bearing, ground so that it mounts alone or stacks with matching SUL bearings in a duplex or triplex set.
SKF 7214 ACDGA/P4A, FAG B7214-E-T-P4S-UL and NSK 7214A5 share the envelope, the 25° contact angle and the light preload class. Timken’s own world designation for this bearing is 7214E-T-P4S-SUL. A 7214 C or 7214C-T-P4S part is the 15° execution on the same envelope, which makes it a related size rather than an interchange.
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