• NSK 7900 Series Super Precision Angular Contact Bearings (C, A5)
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NSK 7900 Series Super Precision Angular Contact Bearings (C, A5)

NSK 7900 Series Super Precision Angular Contact Bearings (C, A5)

NSK 79 series (ultra-thin section) high-precision angular contact ball bearings for machine tool spindles, offered with 15° (C) and 25° (A5) contact angles.

Key features

  • Super precision angular contact ball bearing for machine tool spindles
  • Single-row design; used singly or in DB, DF, DT and multi-row sets
  • Universal matching (SU/DU) and preload options EL, L, M, H
  • Precision classes P2, P4 and P5 (ISO 2, 4, 5) available
  • Polyamide cage (TYN) standard; ceramic ball (SN24) option

Specifications

Series 79 (ISO dimension series 19)
Contact angle C = 15°, A5 = 25°
Bore range 10 - 280 mm
Cage Polyamide (TYN) or phenolic (TR)
Precision P2 / P4 / P5
Source NSK Super Precision Bearings, p. 51-53
7932A5 d: 160 mm | D: 220 mm | B: 28 mm | Cr: 100 kN | C0r: 125 kN | Speed (grease): 5,300 min-1
7934A5 d: 170 mm | D: 230 mm | B: 28 mm | Cr: 106 kN | C0r: 140 kN | Speed (grease): 5,000 min-1
7936A5 d: 180 mm | D: 250 mm | B: 33 mm | Cr: 137 kN | C0r: 174 kN | Speed (grease): 4,700 min-1
7938A5 d: 190 mm | D: 260 mm | B: 33 mm | Cr: 139 kN | C0r: 182 kN | Speed (grease): 4,500 min-1
7940A5 d: 200 mm | D: 280 mm | B: 38 mm | Cr: 178 kN | C0r: 231 kN | Speed (grease): 4,200 min-1
7944C d: 220 mm | D: 300 mm | B: 38 mm | Cr: 190 kN | C0r: 256 kN | Speed (grease): 4,500 min-1
7944A5 d: 220 mm | D: 300 mm | B: 38 mm | Cr: 179 kN | C0r: 242 kN | Speed (grease): 3,900 min-1
7948C d: 240 mm | D: 320 mm | B: 38 mm | Cr: 200 kN | C0r: 286 kN | Speed (grease): 4,200 min-1
7948A5 d: 240 mm | D: 320 mm | B: 38 mm | Cr: 189 kN | C0r: 270 kN | Speed (grease): 3,600 min-1
7952C d: 260 mm | D: 360 mm | B: 46 mm | Cr: 256 kN | C0r: 365 kN | Speed (grease): 3,800 min-1
7952A5 d: 260 mm | D: 360 mm | B: 46 mm | Cr: 241 kN | C0r: 345 kN | Speed (grease): 3,300 min-1
7956C d: 280 mm | D: 380 mm | B: 46 mm | Cr: 272 kN | C0r: 410 kN | Speed (grease): 3,500 min-1
7956A5 d: 280 mm | D: 380 mm | B: 46 mm | Cr: 256 kN | C0r: 390 kN | Speed (grease): 3,100 min-1
Angular Contact Ball BearingsNSK
13 product codes available in this family
Sourced direct from KoreaExport-ready supplyCompetitive pricing
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NSK 7900 Series Super Precision Angular Contact Bearings (C, A5)

Brand NSK·Angular Contact Ball Bearings

Available part numbers (13)

7932A5, 7934A5, 7936A5, 7938A5, 7940A5, 7944C, 7944A5, 7948C, 7948A5, 7952C + 3 more — see full table ↓

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
7932A5d: 160 mm | D: 220 mm | B: 28 mm | Cr: 100 kN | C0r: 125 kN | Speed (grease): 5,300 min-1
7934A5d: 170 mm | D: 230 mm | B: 28 mm | Cr: 106 kN | C0r: 140 kN | Speed (grease): 5,000 min-1
7936A5d: 180 mm | D: 250 mm | B: 33 mm | Cr: 137 kN | C0r: 174 kN | Speed (grease): 4,700 min-1
7938A5d: 190 mm | D: 260 mm | B: 33 mm | Cr: 139 kN | C0r: 182 kN | Speed (grease): 4,500 min-1
7940A5d: 200 mm | D: 280 mm | B: 38 mm | Cr: 178 kN | C0r: 231 kN | Speed (grease): 4,200 min-1
7944Cd: 220 mm | D: 300 mm | B: 38 mm | Cr: 190 kN | C0r: 256 kN | Speed (grease): 4,500 min-1
7944A5d: 220 mm | D: 300 mm | B: 38 mm | Cr: 179 kN | C0r: 242 kN | Speed (grease): 3,900 min-1
7948Cd: 240 mm | D: 320 mm | B: 38 mm | Cr: 200 kN | C0r: 286 kN | Speed (grease): 4,200 min-1
7948A5d: 240 mm | D: 320 mm | B: 38 mm | Cr: 189 kN | C0r: 270 kN | Speed (grease): 3,600 min-1
7952Cd: 260 mm | D: 360 mm | B: 46 mm | Cr: 256 kN | C0r: 365 kN | Speed (grease): 3,800 min-1
7952A5d: 260 mm | D: 360 mm | B: 46 mm | Cr: 241 kN | C0r: 345 kN | Speed (grease): 3,300 min-1
7956Cd: 280 mm | D: 380 mm | B: 46 mm | Cr: 272 kN | C0r: 410 kN | Speed (grease): 3,500 min-1
7956A5d: 280 mm | D: 380 mm | B: 46 mm | Cr: 256 kN | C0r: 390 kN | Speed (grease): 3,100 min-1

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