Ball Bearings

The basic bearing of excellence, the ball bearing is designed to accept radial and/or axial loads according to internal design.

RADIAL CONTACT BEARINGS

STANDARD ranges: sheet, solid or reinforced polyamide cage depending on the series and dimensions

Type of cage NTN SNR
Brass -L1 -M
Solid steel -F1 -
Riveted steel -JR -
Reinforced polyamide
fibre glass
-T2 -G15

- METRIC range:
1 row: 61700, (6700 by NTN), 61800 (6800 by NTN), 61900 (6900 by NTN),16000, 6000, 6200, 6300, 6400
- Miniature range (pg.5)
- Large bearings: bore ≤ 1320 mm
2 rows: 4200, 4300

- INCH range (R-)

- Sealing

Type of sealing Characteristics Suffixes
Shield Metal -Z / -ZZ
Seal Standard contact -LU / -LLU (NTN); -E / -EE (SNR)
Seal Non-contact (labyrinth effect) -LB / -LLB
Seal Low torque contact with pressure balancing system -LH / -LLH
Seal Standard contact for high temperatures (+150°C) -LUA / -LLUA
Seal Standard contact for very high temperatures (+200°C) -LUA1 / -LLUA1
Seal Standard contact for extreme temperatures (from -100°C to +200°C) -LUA2 / -LLUA2

Reduced (-C2) or enhanced (-C3, -C4, -C5) internal radial clearances

Increased precisions (-P6, -P5, -P4)

Ring modifications

  • Presence of a groove on the outer ring with (-NR) or without a snap ring (-N)
  • Tapered bore (-K)

Other materials

  • Case hardened steel (E-)
  • Stainless steel (see Stainless steel range)
  • Special steel with special heat treatment for long lifetime (TMB-, TAB-)

Stabilisation for higher-than-standard operating temperatures (TS1 / TS2 / TS3 / TSX)

SPECIFIC Ranges

developed for tough environments:
Expansion compensating bearings:
- EC : if a tight adjustment on the outer ring (rotating loads on the outer ring) is impossible or a risk of ring rotation exists.
- AC-: similar concept to EC- range, the anti-rotation function is provided by two O- rings

Stainless steel range (F-):to prevent corrosion (maritime environments, food, etc.)

Specific restrictions Characteristics Suffixes
High temperatures +150°C -FT150
High temperatures +200°C -HT200
High temperatures +350°C -F600
Low temperatures -60°C -LT
High speeds Up to 700 000 NDm -HV

TOPLINE range: Standard dimensions for specific applications

MEGAOHM range: bearings with electrical insulation, mainly for applications with electrical motors and generators

CLEAN range: for environments with an extreme vacuum (semi-conductors, aeronautics, etc.)

ANGULAR CONTACT BEARINGS

Cage materials Suffixes
Phendic resin T1 -
Sheet -J
Reinforced polyamide fibre glass -G15 (SNR)
-T2 (NTN)
Solid Brass -M (SNR)
-L1 (NTN)
Solid Steel -F1 (NTN)

STANDARD range

depending on series and dimensions, angle of 30°:
1 row: 7800, 7900, 71900, 7000, 7200, 7300, 7400
Large bearings: bore < 1060 mm.
2 rows: 5200, 5300, 3200, 3300

Variants Suffixes Brands
Angle at 25° -AD NTN
Angle increased to 40° -B NTN and SNR
Universal fitting with no pre-load -G NTN and SNR
Non-contact metal protection flange -ZZ NTN and SNR
Contact seal -EE SNR
Non-contact seal (labyrinth effect) -LLB NTN

For series 3200 and 3300, angle 25° or 32° depending on type.

4-POINT ANGULAR CONTACT BEARINGS

STANDARD range: solid cage (-M by SNR, -L1 by NTN): QJ200, QJ300

DOUBLE-ROW SELF-ALIGNING BALL BEARINGS

Standard range:sheet or reinforced polyamide fibre glass cages (-G15 by SNR, – T2 by NTN)
Series 1200, 2200, 1300, 2300


Possible variants

  • Contact seal (-EE, SNR)
  • Tapered bore (-K)
  • Large inner rings for series 11200 and 11300

MINIATURE BEARINGS

Standard range: 670, 680, 609, 600, 620, 630

  • with or without shield
  • with or without seal
  • range with flange (FL-)
  • metric or inch (R-)

Range with rubber dampers (F-SX)
Pivot bearing range (BCP-)
Stainless steel bearing range (F-)

THIN-SECTION BEARINGS

Type of contact Prefix / Suffix
Radial KR
Angular KY
4 points KX

INTERVITO
tel: +48 22 879 79 79
fax: +48 22 879 88 77
biuro@intervito.com.pl
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