KR 40 PP bearing dimensions & suffix variants
Look up recorded dimensions for designations beginning with KR 40 PP. The table retains complete manufacturer designations so special suffixes and different dimensional variants remain visible.
On this page5 sections ⌄
Find by measured dimensions
Enter bore d, outside diameter D and width B. Use decimals or inch fractions such as 1/2 or 1 1/4.
KR 40 PP dimensions and recorded technical data
Use the named dimensions for each complete record below. A generic d×D×B answer is not asserted where the base record is missing, dimension symbols are unverified, or the product uses a different geometry such as a housing or thrust assembly. Suffix records are not substituted for a missing base specification.
The numeric series boundary is preserved: a longer number is not included merely because its first digits match. 3 recorded variants are listed. A dash means the value is missing, not zero.
Catalogue parameters for KR 40 PP
Choose the complete brand and marking before reading a value. These source-labelled records add dimensions, construction and engineering properties where they were recorded; a shared model number does not establish interchangeability.
Units, ranges and minimum/maximum qualifiers are retained. The data is a dated catalogue reference, not a certified drawing, a complete current specification or an operating approval.
SKF KR 40 PP — 43 recorded parameters
Cam follower (stud-type track roller) with integral sealing and relubrication feature
Reference: SKF product catalogue; source snapshot 2026-09-02.
SKF KR 40 PP is a stud-mounted roller. Its mounting/stud diameter is 18 mm, rolling outside diameter is 40 mm, and total stud-and-roller length is 58.1 mm. The stud dimension is not a bearing inner-ring bore.
The rolling outer ring is 20 mm wide; the recorded shank/effective stud length is 36.5 mm. Neither of these is interchangeable with the total length.
Calculated inch reference (stud diameter × roller outside diameter × total length): 0.708661 × 1.574803 × 2.287402 in. This converts the recorded millimetres using exactly 25.4 mm/in and rounds to six decimals; it does not change the nominal series or supply machining tolerances.
When comparing another brand or suffix, check these five dimensions separately, then the thread, outer-ring profile and closure. A shared KR base number is not evidence of an identical installation envelope.
Read the complete suffix and recorded construction. Similar dimensions do not prove identical seals, clearance, precision or material.
Values shown are retained from the recorded source. Zero boundary dimensions and zero load ratings from incomplete legacy feeds are withheld rather than presented as usable specifications.
Dimensions
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Functional outside diameter | Not separately recorded | 40.0 mm |
| Stud diameter | Not separately recorded | 18.0 mm |
| Length | Not separately recorded | 58.1 mm |
| Width, outer ring | Not separately recorded | 20.0 mm |
Performance
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Basic dynamic load rating | Not separately recorded | 10.2 kN |
| Basic static load rating | Not separately recorded | 17.0 kN |
| Limiting speed | Not separately recorded | 3200.0 r/min |
Properties
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Rolling elements | Not separately recorded | Needle rollers |
| Number of rows | Not separately recorded | 1 |
| Outer ring profile | Not separately recorded | Crowned |
| Stud alignment | Not separately recorded | Centric |
| Number of flanges, outer ring | Not separately recorded | 2 |
| Feature for tightening | Not separately recorded | Hexagonal recess |
| Cage | Not separately recorded | With |
| Radial internal clearance | Not separately recorded | Between C2 and CN |
| Tolerance class | Not separately recorded | Other |
| Material, bearing | Not separately recorded | Bearing steel |
| Coating | Not separately recorded | Without |
| Sealing | Not separately recorded | Seal on both sides |
| Sealing type | Not separately recorded | Contact |
| Lubricant | Not separately recorded | Grease |
| Relubrication feature | Not separately recorded | Centre of each stud end and radial hole in stud shank |
Logistics
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Product net weight | Not separately recorded | 0.296 kg |
Engineering — Dimensions
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Outside diameter | D | 40 mm |
| Attachment diameter | d | 18 mm |
| Total length | B | 58.1 mm |
| Width outer ring | C | 20 mm |
| Length shank on stud | B 1 | 36.5 mm |
| Distance lubrication hole to flange ring | B 2 | 8 mm |
| Distance face outer ring to face side washer | C 1 | 0.8 mm |
| Outside diameter flange ring | d 1 | 30.7 mm |
| Thread stud | G | M18x1.5 |
| Length thread | G 1 | 19 mm |
| Seat diameter for lubrication accessories | M | 6 mm |
| Diameter of lubrication hole (shank) | M 1 | 3 mm |
| Width across flats | SW | 8 mm |
Engineering — Calculation data
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Basic dynamic load rating | C | 10.2 kN |
| Basic static load rating | C 0 | 17 kN |
| Fatigue load limit | P u | 2 kN |
| Maximum dynamic radial loads | F r | max. 15 kN |
| Maximum static radial loads | F 0r | max. 21.2 kN |
| Limiting speed | Not separately recorded | 3200 r/min |
Engineering — Mounting information
| Parameter | Source symbol | Recorded value |
|---|---|---|
| Recommended tightening torque | Not separately recorded | 87 N·m |
No recorded variant matches these filters. Clear a filter to see other records; no substitute has been inferred.
| Brand / full designation | Named dimensions (mm / in) | Dynamic C (kN) | Static C0 (kN) | Reference speed (rpm) | Limiting speed (rpm) | Mass (kg / g) |
|---|---|---|---|---|---|---|
| SKFKR 40 PPCam follower (stud-type track roller) with integral sealing and relubrication feature |
| 10.2 kN | 17 kN | — | 3200 rpm | 0.296 kg296 g |
| SKFKR 40 PPXCam follower (stud-type track roller) with integral sealing and relubrication feature |
| 10.2 kN | 17 kN | — | 3200 rpm | 0.296 kg296 g |
| INAKR40-PP-AStud type track roller |
| 10.9 kN | 16 kN | — | 2900 rpm | 0.23 kg230 g |
Compare recorded seals, clearance, precision and materials
Manufacturer wording is retained. A missing property is not inferred from another brand or a similar suffix.
| Brand / designation | Closure | Original precision | Clearance | Cage | Material | Lubricant |
|---|---|---|---|---|---|---|
| SKF KR 40 PP | Seal on both sides | Not recorded | Between C2 and CN | With | Bearing steel | Grease |
| SKF KR 40 PPX | Seal on both sides | Not recorded | Between C2 and CN | With | Bearing steel | Grease |
| INA KR40-PP-A | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded | Not recorded |
How to compare these values
- Use the displayed dimension names and original symbols. Housing length L, height H2 and flange width are not bearing outside diameter D. A catalogue width with an unverified symbol must not be assumed to be inner-ring width B or assembly width T. Open the product record for mounting dimensions and geometry.
- Inch values are calculated from the recorded millimetres using 25.4 mm per inch, rounded to six decimal places. They do not change a metric bearing into an inch-series bearing. Gram values are converted from the recorded mass in kilograms.
- C and C0 describe different rating conditions. They are not a single safe working-load limit and cannot replace an application load calculation.
- Reference and limiting speeds are separate catalogue values. The source grease/oil context is shown where recorded. Lubricant, seals, loads, fit, clearance and cooling affect the usable operating speed.
- A common base number does not prove equivalent seals, clearance, precision, material or interchangeability. Open the full designation for these fields.
Related prefix matches — other model numbers may appear
These discovery results can contain a longer number or a different component. They are not specifications for the requested exact model. Open the complete product to inspect its original geometry.
KR 40 PP
Cam follower (stud-type track roller) with integral sealing and relubrication feature
View full technical record →INAKR40-PP-A
Stud type track roller
View full technical record →SKFKR 40 PPX
Cam follower (stud-type track roller) with integral sealing and relubrication feature
View full technical record →Check the drawing before substituting
Nominal dimensions are not shaft-fit tolerances. Different variants can add grooves, flanges, wider rings or assembly components. When the table has different dimensions, the complete designation—not the shared prefix—controls.
Reference basis & data limits
Manufacturer terminology is retained in the product records. Technical reference basis: JTEKT Basic Bearing Knowledge (boundary dimensions, tolerance classes and lubrication); NSK Bearing ABCs (lubrication, designations and clearance); NTN technical FAQs (closure codes and component interchange); SKF rolling-bearing selection and maintenance references.
Selection workflows and catalogue grouping are BearingScope editorial aids. Verify the current drawing and application requirements before using a candidate. Missing database information is not converted into an assumed match.