• NSK AD Adapters for RCT Railway Axle Bearing Units
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NSK AD Adapters for RCT Railway Axle Bearing Units

NSK AD Adapters for RCT Railway Axle Bearing Units

NSK AD adapters (narrow type) that seat RCT railway axle bearing units in the bogie side frame, for bearing classes B to F and JT9 to JT11.

Key features

  • Narrow adapters for RCT bearing units
  • Classes B, C, D, E, F and JT9-JT11
  • Transfers axle load from the bearing cup to the side frame
  • AD311 shape differs slightly from AD312-AD320

Specifications

Application Railway vehicle axles
Product Adapter for RCT bearing unit
Type Narrow adapter
Classes B to F, JT9-JT11
Used with RCT bearing units
Source NSK Rolling Bearings Catalogue (Part 3), p. 348-349
AD311 Bearing class: B | Axle size: 4 1/4 x 8 | P: 174.6 mm | R: 82.60 mm
AD312 Bearing class: C | Axle size: 5 x 9 | P: 206.4 mm | R: 97.69 mm
AD313 Bearing class: D | Axle size: 5 1/2 x 10 | P: 215.9 mm | R: 104.04 mm
AD314 Bearing class: E | Axle size: 6 x 11 | P: 231.8 mm | R: 110.39 mm
AD315 Bearing class: F | Axle size: 6 1/2 x 12 | P: 254.0 mm | R: 126.26 mm
AD318 Bearing class: JT9 | Axle size: 110 | P: 190 mm | R: 87.5 mm
AD319 Bearing class: JT10 | Axle size: 120 | P: 206 mm | R: 97.5 mm
AD320 Bearing class: JT11 | Axle size: 130 | P: 198 mm | R: 104 mm
Bearing AccessoriesNSK
8 product codes available in this family
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NSK AD Adapters for RCT Railway Axle Bearing Units

Brand NSK·Bearing Accessories

Available part numbers (8)

AD311, AD312, AD313, AD314, AD315, AD318, AD319, AD320

How to order

Send the NSK part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.

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Product codes & specifications
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Product codeSpec
AD311Bearing class: B | Axle size: 4 1/4 x 8 | P: 174.6 mm | R: 82.60 mm
AD312Bearing class: C | Axle size: 5 x 9 | P: 206.4 mm | R: 97.69 mm
AD313Bearing class: D | Axle size: 5 1/2 x 10 | P: 215.9 mm | R: 104.04 mm
AD314Bearing class: E | Axle size: 6 x 11 | P: 231.8 mm | R: 110.39 mm
AD315Bearing class: F | Axle size: 6 1/2 x 12 | P: 254.0 mm | R: 126.26 mm
AD318Bearing class: JT9 | Axle size: 110 | P: 190 mm | R: 87.5 mm
AD319Bearing class: JT10 | Axle size: 120 | P: 206 mm | R: 97.5 mm
AD320Bearing class: JT11 | Axle size: 130 | P: 198 mm | R: 104 mm

Need a different model, or a part not listed here? Send us your parts list →

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